StructureDefinition for namingsystem

<?xml version="1.0" encoding="UTF-8"?>

<StructureDefinition xmlns="http://hl7.org/fhir">  <id value="NamingSystem"/>   <meta>     <lastUpdated value="2025-12-17T09:50:17.012+00:00"/>   </meta>   <text>     <status value="generated"/>     <div xmlns="http://www.w3.org/1999/xhtml">      <table border="0" cellpadding="0" cellspacing="0" style="border: 0px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align:

       top;">
        <tr style="border: 1px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align:

         top">
          <th class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom:
           3px">
            <a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="The logical name of the element">Name</a>           </th>           <th class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom:
           3px">
            <a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Information about the use of the element">Flags</a>           </th>           <th class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom:
           3px">
            <a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Minimum and Maximum # of times the element can appear in the instance">Card.</a>           </th>           <th class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom:
           3px; width: 100px">
            <a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Reference to the type of the element">Type</a>           </th>           <th class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom:
           3px">
            <a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Additional information about the element">Description &amp; Constraints</a>             <span style="float: right">              <a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Legend for this format">                <img alt="doco" src="data:(snipped in html view)" style="background-color: inherit"/>               </a>             </span>           </th>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         white">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAJUlEQVR4Xu3IIQEAAAg
          DsHd9/w4EQIOamFnaBgAA4MMKAACAKwNp30CqZFfFmwAAAABJRU5ErkJggg==)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Resource"/>              <span title="NamingSystem : A curated namespace that issues unique symbols within that namespace

             for the identification of concepts, people, devices, etc.  Represents a &quot;System&quot;
             used within the Identifier and Coding data types.">NamingSystem</span> 
            <a name="NamingSystem"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="versions.html#std-process" style="padding-left: 3px; padding-right: 3px; border: 1px grey solid; font-weight: bold;

             color: black; background-color: #e6ffe6; padding-left: 3px; padding-right: 3px;
             border: 1px grey solid; font-weight: bold; color: black; background-color: #e6ffe6" title="Standards Status = Normative">N</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px"/> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="domainresource.html">DomainResource</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">System of unique identification
            <br/>              <span style="font-style: italic" title="cnl-0">+ Warning: Name should be usable as an identifier for the module by machine processing

               applications such as code generation</span> 
            <br/>              <span style="font-style: italic" title="nsd-1">+ Rule: Root systems cannot have uuid identifiers</span>             <br/>              <span style="font-style: italic" title="nsd-2">+ Rule: Can't have more than one preferred identifier for a type</span>             <br/>              <span style="font-style: italic" title="nsd-3">+ Rule: Can't have more than one authoritative identifier for a type/period combination

               (only one authoritative identifier allowed at any given point of time)</span> 
            <br/>              <br/>  Elements defined in Ancestors:             <a href="resource.html#Resource" title="The logical id of the resource, as used in the URL for the resource. Once assigned,

             this value never changes.">id</a> , 

            <a href="resource.html#Resource" title="The metadata about the resource. This is content that is maintained by the infrastructure.
             Changes to the content may not always be associated with version changes to the resource., 
            A reference to a set of rules that were followed when the resource was constructed, and
             which must be understood when processing the content., 
            , 
            A human-readable narrative that contains a summary of the resource, and may be used to
             represent the content of the resource to a human. The narrative need not encode all the
             structured data, but is required to contain sufficient detail to make it &quot;clinically
             safe&quot; for a human to just read the narrative. Resource definitions may define what
             content should be represented in the narrative to ensure clinical safety., 
            These resources do not have an independent existence apart from the resource that contains
             them - they cannot be identified independently, and nor can they have their own independent
             transaction scope., 

             Changes to the content might not always be associated with version changes to the
             resource.">meta</a> , 
            <a href="resource.html#Resource" title="A reference to a set of rules that were followed when the resource was constructed,

             and which must be understood when processing the content. Often, this is a reference
             to an implementation guide that defines the special rules along with other profiles
             etc. For DomainResources, if more than one implicitRules policy applies, additional
             policies may be conveyed using the [additionalImplicitRules](https://build.fhir.org/ig/HL7/fh
            ir-extensions/StructureDefinition-additionalImplicitRules.html) extension.">implicitRules</a> , 
            <a href="resource.html#Resource" title="The base language in which the resource is written.">language</a> ,             <a href="domainresource.html#DomainResource" title="A human-readable narrative that contains a summary of the resource and can be used

             to represent the content of the resource to a human. The narrative need not encode
             all the structured data, but is required to contain sufficient detail to make it
             &quot;clinically safe&quot; for a human to just read the narrative. Resource definitions
             may define what content should be represented in the narrative to ensure clinical
             safety.">text</a> , 
            <a href="domainresource.html#DomainResource" title="These resources do not have an independent existence apart from the resource that

             contains them - they cannot be identified independently, nor can they have their
             own independent transaction scope. This is allowed to be a Parameters resource
             if and only if it is referenced by a resource that provides context/meaning.">contained</a> , 

            <a href="domainresource.html#DomainResource" title="May be used to represent additional information that is not part of the basic definition
             of the resource. In order to make the use of extensions safe and manageable, there is
             a strict set of governance  applied to the definition and use of extensions. Though any
             implementer is allowed to define an extension, there is a set of requirements that SHALL
             be met as part of the definition of the extension., 

             of the resource. To make the use of extensions safe and managable, there is a strict
             set of governance applied to the definition and use of extensions. Though any implementer
             can define an extension, there is a set of requirements that SHALL be met as part
             of the definition of the extension.">extension</a> , 

            <a href="domainresource.html#DomainResource" title="May be used to represent additional information that is not part of the basic definition
             of the resource, and that modifies the understanding of the element that contains it.
             Usually modifier elements provide negation or qualification. In order to make the use
             of extensions safe and manageable, there is a strict set of governance applied to the
             definition and use of extensions. Though any implementer is allowed to define an extension,
             there is a set of requirements that SHALL be met as part of the definition of the extension.
             Applications processing a resource are required to check for modifier extensions.
          
        

        
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            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC 
            NamingSystem.name : A natural language name identifying the naming system. This name should
             be usable as an identifier for the module by machine processing applications such as code
             generation.
            
          
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           padding:0px 4px 0px 4px
            
          
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             of the resource and that modifies the understanding of the element that contains
             it and/or the understanding of the containing element's descendants. Usually modifier
             elements provide negation or qualification. To make the use of extensions safe
             and managable, there is a strict set of governance applied to the definition and
             use of extensions. Though any implementer is allowed to define an extension, there
             is a set of requirements that SHALL be met as part of the definition of the extension.
             Applications processing a resource are required to check for modifier extensions.
Modifier extensions SHALL NOT change the meaning of any elements on Resource or
             DomainResource (including cannot change the meaning of modifierExtension itself).">modifierExtension</a> 
            <br/>              <span title="uml.html#interfaces">Interfaces Implemented: </span>             <a href="metadataresource.html#MetadataResource" title="Common Interface declaration for conformance and knowledge artifact resources.">MetadataResource</a>           </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         #F7F7F7">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type"/>              <span title="NamingSystem.url : An absolute URI that is used to identify this naming system

             when it is referenced in a specification, model, design or an instance; also called
             its canonical identifier. This SHOULD be globally unique and SHOULD be a literal
             address at which an authoritative instance of this naming system is (or will be)
             published. This URL can be the target of a canonical reference. It SHALL remain
             the same when the naming system is stored on different servers.">url</span> 
            <a name="NamingSystem.url"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is included in summaries">Σ</a> 
            <a href="conformance-rules.html#constraints" style="padding-left: 3px; padding-right: 3px; border: 1px maroon solid; font-weight: bold;

             color: #301212; background-color: #fdf4f4;; padding-left: 3px; padding-right: 3px;
             border: 1px maroon solid; font-weight: bold; color: #301212; background-color:
             #fdf4f4;" title="This element has or is affected by some invariants">C</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#uri">uri</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Canonical identifier for this naming system, represented as a URI (globally unique)
            <br/>              <span style="font-style: italic" title="cnl-1">+ Warning: URL should not contain | or # - these characters make processing canonical

               references problematic</span> 
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         white">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Data Type"/>              <span title="NamingSystem.identifier : A formal identifier that is used to identify this naming

             system when it is represented in other formats, or referenced in a specification,
             model, design or an instance.">identifier</span> 
            <a name="NamingSystem.identifier"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is included in summaries">Σ</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..*</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#Identifier">Identifier</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Additional identifier for the naming system (business identifier)
            <br/>              <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         #F7F7F7">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type"/>              <span title="NamingSystem.version : The identifier that is used to identify this version of

             the naming system when it is referenced in a specification, model, design or instance.
             This is an arbitrary value managed by the naming system author and is not expected
             to be globally unique. For example, it might be a timestamp (e.g. yyyymmdd) if
             a managed version is not available. There is also no expectation that versions
             can be placed in a lexicographical sequence.">version</span> 
            <a name="NamingSystem.version"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is included in summaries">Σ</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Business version of the naming system
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         white">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Choice of Types"/>              <span title="NamingSystem.versionAlgorithm[x] : Indicates the mechanism used to compare versions

             to determine which NamingSystem is more current.">versionAlgorithm[x]</span> 
            <a name="NamingSystem.versionAlgorithm_x_"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is included in summaries">Σ</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px"/> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">How to compare versions
            <br/>  Binding:             <a href="valueset-version-algorithm.html">Version Algorithm</a>  (            <a href="terminologies.html#extensible" title="To be conformant, the concept in this element SHALL be from the specified value

             set if any of the codes within the value set can apply to the concept being communicated.
              If the value set does not cover the concept (based on human review), alternate
             codings (or, data type allowing, text) may be included instead.">Extensible</a> )
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         #F7F7F7">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAMUlEQVR4Xu3LMQoAIBA
          Dwftr/v8GtdbqEAthAtMspJJUx9rYW8ftHwAA+NcRAAAAXplLq0BWj/rZigAAAABJRU5ErkJggg==)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type"/>              <span title="A sequence of Unicode characters">versionAlgorithmString</span>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px"/> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px"/> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px"/> 
        </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         white">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Data Type"/>              <span title="A reference to a code defined by a terminology system.">versionAlgorithmCoding</span>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px"/> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px"/> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#Coding">Coding</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px"/> 
        </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         #F7F7F7">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type"/>              <span title="NamingSystem.name : A natural language name identifying the naming system. This

             name should be usable as an identifier for the module by machine processing applications
             such as code generation.">name</span> 
            <a name="NamingSystem.name"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is included in summaries">Σ</a> 
            <a href="conformance-rules.html#constraints" style="padding-left: 3px; padding-right: 3px; border: 1px maroon solid; font-weight: bold;

             color: #301212; background-color: #fdf4f4;; padding-left: 3px; padding-right: 3px;
             border: 1px maroon solid; font-weight: bold; color: #301212; background-color:
             #fdf4f4;" title="This element has or is affected by some invariants">C</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">1..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Name for this naming system (computer friendly)
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         white">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Primitive Data Type"/>              <span title="NamingSystem.title : A short, descriptive, user-friendly title for the naming system.">title</span>             <a name="NamingSystem.title"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is included in summaries">Σ</a> 
            <a href="languages.html#translatable" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is a candidate for being translated">T</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Title for this naming system (human friendly)
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         #F7F7F7">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type"/>  
            <span title="NamingSystem.status : The status of this naming system. Enables tracking the life-cycle
             of the content.
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
            
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4pxdraft | active | retired | unknown
            
             (
            )
          
        

        
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(data: image/png;base64,iVBORw0KG
          goAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgC
          sPVYVAgIJrA/sAAAAASUVORK5CYII=)
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            3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAw
            NdCABMPwMo2ctnoQAAAABJRU5ErkJggg==
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav
            7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIW
            XMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i
            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC 
            NamingSystem.kind : Indicates the purpose for the naming system - what kinds of things
             does it make unique?
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4pxcodesystem | identifier | root
            
             (
            )
          
        

        
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(data: image/png;base64,iVBORw0KG
          goAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgC
          sPVYVAgIJrA/sAAAAASUVORK5CYII=)
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAw
            NdCABMPwMo2ctnoQAAAABJRU5ErkJggg==
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav
            7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIW
            XMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i
            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC 
            NamingSystem.date : The date  (and optionally time) when the naming system was published.
             The date must change if and when the business version changes and it must change if the
             status code changes. In addition, it should change when the substantive content of the
             naming system changes.
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
        

        
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(data: image/png;base64,iVBORw0KG
          goAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgC
          sPVYVAgIJrA/sAAAAASUVORK5CYII=)
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAw
            NdCABMPwMo2ctnoQAAAABJRU5ErkJggg==
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav
            7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIW
            XMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i
            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC 
            NamingSystem.publisher : The name of the individual or organization that published the
             naming system.
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
        

        
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(data: image/png;base64,iVBORw0KG
          goAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgC
          sPVYVAgIJrA/sAAAAASUVORK5CYII=)
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAw
            NdCABMPwMo2ctnoQAAAABJRU5ErkJggg==
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav
            7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC
            data: image/png;base64,R0lGODlhEAAQAOZ/APrkusOiYvvfqbiXWaV2G+jGhdq1b8GgYf3v1frw3vTUlsWkZNewbcSjY/DQk
            ad4Hb6dXv3u0f3v1ObEgfPTlerJiP3w1v79+e7OkPrfrfnjuNOtZPrpydaxa+/YrvvdpP779ZxvFPvnwKKBQaFyF/369M2vdaqHRP
            z58/HNh/vowufFhfroxO3OkPrluv779tK0e6JzGProwvrow9m4eOnIifPTlPDPkP78+Naxaf3v0/zowfXRi+bFhLWUVv379/rnwPv
            szv3rye3LiPvnv+3MjPDasKiIS/789/3x2f747eXDg+7Mifvu0tu7f+/QkfDTnPXWmPrjsvrjtPbPgrqZW+/QlPz48K2EMv36866O
            UPvowat8Ivvgq/Pbrvzgq/PguvrgrqN0Gda2evfYm9+7d/rpw9q6e/LSku/Rl/XVl/LSlfrkt+zVqe7Wqv3x1/bNffbOf59wFdS6i
            f3u0vrqyP3owPvepfXQivDQkO/PkKh9K7STVf779P///////yH5BAEAAH8ALAAAAAAQABAAAAfNgH+Cg36FfoOIhH4JBxBghYl/hQ
            kNAV0IVT5GkJKLCwtQaSsSdx9aR26Gcwt2IkQaNRI6dBERIzCFDSgWSW8WCDkbBnoOQ3uFARc/JQJfCAZlT0x4ZFyFBxdNQT9ZCBN
            WKQoKUQ+FEDgcdTIAV14YDmg2CgSFA0hmQC5TLE4VRTdrKJAoxOeFCzZSwsw4U6BCizwUQhQyEaAPiAwCVNCY0FCNnA6GPAwYoETI
            FgY9loiRA4dToTYnsOxg8CBGHE6ICvEYQ4AKzkidfgoKBAA7 
            NamingSystem.contact : Contact details to assist a user in finding and communicating with
             the publisher.
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4pxContact details for the publisher
            
          
        

        
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(data: image/png;base64,iVBORw0KG
          goAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgC
          sPVYVAgIJrA/sAAAAASUVORK5CYII=)
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAw
            NdCABMPwMo2ctnoQAAAABJRU5ErkJggg==
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav
            7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIW
            XMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i
            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC 
            NamingSystem.responsible : The name of the organization that is responsible for issuing
             identifiers or codes for this namespace and ensuring their non-collision.
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
        

        
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(data: image/png;base64,iVBORw0KG
          goAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgC
          sPVYVAgIJrA/sAAAAASUVORK5CYII=)
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAw
            NdCABMPwMo2ctnoQAAAABJRU5ErkJggg==
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav
            7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC
            data: image/png;base64,R0lGODlhEAAQAOZ/APrkusOiYvvfqbiXWaV2G+jGhdq1b8GgYf3v1frw3vTUlsWkZNewbcSjY/DQk
            ad4Hb6dXv3u0f3v1ObEgfPTlerJiP3w1v79+e7OkPrfrfnjuNOtZPrpydaxa+/YrvvdpP779ZxvFPvnwKKBQaFyF/369M2vdaqHRP
            z58/HNh/vowufFhfroxO3OkPrluv779tK0e6JzGProwvrow9m4eOnIifPTlPDPkP78+Naxaf3v0/zowfXRi+bFhLWUVv379/rnwPv
            szv3rye3LiPvnv+3MjPDasKiIS/789/3x2f747eXDg+7Mifvu0tu7f+/QkfDTnPXWmPrjsvrjtPbPgrqZW+/QlPz48K2EMv36866O
            UPvowat8Ivvgq/Pbrvzgq/PguvrgrqN0Gda2evfYm9+7d/rpw9q6e/LSku/Rl/XVl/LSlfrkt+zVqe7Wqv3x1/bNffbOf59wFdS6i
            f3u0vrqyP3owPvepfXQivDQkO/PkKh9K7STVf779P///////yH5BAEAAH8ALAAAAAAQABAAAAfNgH+Cg36FfoOIhH4JBxBghYl/hQ
            kNAV0IVT5GkJKLCwtQaSsSdx9aR26Gcwt2IkQaNRI6dBERIzCFDSgWSW8WCDkbBnoOQ3uFARc/JQJfCAZlT0x4ZFyFBxdNQT9ZCBN
            WKQoKUQ+FEDgcdTIAV14YDmg2CgSFA0hmQC5TLE4VRTdrKJAoxOeFCzZSwsw4U6BCizwUQhQyEaAPiAwCVNCY0FCNnA6GPAwYoETI
            FgY9loiRA4dToTYnsOxg8CBGHE6ICvEYQ4AKzkidfgoKBAA7 

             of the content.">status</span> 
            <a name="NamingSystem.status"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="conformance-rules.html#isModifier" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is a modifier element">?!</a> 
            <a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is included in summaries">Σ</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">1..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#code">code</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">draft | active | retired | unknown
            <br/>  Binding:             <a href="valueset-publication-status.html">PublicationStatus</a>  (            <a href="terminologies.html#required" title="To be conformant, the concept in this element SHALL be from the specified value

             set.">Required</a> )
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         white">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Primitive Data Type"/>              <span title="NamingSystem.kind : Indicates the purpose for the naming system - what kinds of

             things does it make unique?">kind</span> 
            <a name="NamingSystem.kind"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is included in summaries">Σ</a> 
            <a href="conformance-rules.html#constraints" style="padding-left: 3px; padding-right: 3px; border: 1px maroon solid; font-weight: bold;

             color: #301212; background-color: #fdf4f4;; padding-left: 3px; padding-right: 3px;
             border: 1px maroon solid; font-weight: bold; color: #301212; background-color:
             #fdf4f4;" title="This element has or is affected by some invariants">C</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">1..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#code">code</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">codesystem | identifier | root
            <br/>  Binding:             <a href="valueset-namingsystem-type.html">Naming System Type</a>  (            <a href="terminologies.html#required" title="To be conformant, the concept in this element SHALL be from the specified value

             set.">Required</a> )
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         #F7F7F7">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type"/>              <span title="NamingSystem.experimental : A Boolean value to indicate that this naming system

             is authored for testing purposes (or education/evaluation/marketing) and no version
             of this resource will ever be intended for genuine usage.">experimental</span> 
            <a name="NamingSystem.experimental"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is included in summaries">Σ</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#boolean">boolean</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">For testing only - never for real usage
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         white">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Primitive Data Type"/>              <span title="NamingSystem.date : The date  (and optionally time) when the naming system was

             last significantly changed. The date must change when the business version changes
             and it must change if the status code changes. In addition, it should change when
             the substantive content of the naming system changes.">date</span> 
            <a name="NamingSystem.date"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is included in summaries">Σ</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">1..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#dateTime">dateTime</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Date last changed
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         #F7F7F7">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type"/>              <span title="NamingSystem.publisher : The name of the organization or individual responsible

             for the release and ongoing maintenance of the naming system.">publisher</span> 
            <a name="NamingSystem.publisher"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is included in summaries">Σ</a> 
            <a href="languages.html#translatable" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is a candidate for being translated">T</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Name of the publisher/steward (organization or individual)
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         white">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Data Type"/>              <span title="NamingSystem.contact : Contact details to assist a user in finding and communicating

             with the publisher.">contact</span> 
            <a name="NamingSystem.contact"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is included in summaries">Σ</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..*</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="metadatatypes.html#ContactDetail">ContactDetail</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Contact details for the publisher
            <br/>              <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         #F7F7F7">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type"/>              <span title="NamingSystem.responsible : The name of the organization that is responsible for

             issuing identifiers or codes for this namespace and ensuring their non-collision.">responsible</span> 
            <a name="NamingSystem.responsible"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="languages.html#translatable" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is a candidate for being translated">T</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Who maintains system namespace?
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         white">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
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            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Data Type"/>  
            <span title="NamingSystem.type : Categorizes a naming system for easier search by grouping related
             naming systems.
            
          
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          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4pxe.g. driver,  provider,  patient, bank etc.
            
            A coded type for an identifier that can be used to determine which identifier to use for
             a specific purpose. (
            To be conformant, the concept in this element SHALL be from the specified value set if
             any of the codes within the value set can apply to the concept being communicated.  If
             the value set does not cover the concept (based on human review), alternate codings (or,
             data type allowing, text) may be included instead.)
          
        

        
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            NamingSystem.description : A free text natural language description of the naming system
             from a consumer's perspective. Details about what the namespace identifies including scope,
             granularity, version labeling, etc.
            
          
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           padding:0px 4px 0px 4px
        

        
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            NamingSystem.useContext : The content was developed with a focus and intent of supporting
             the contexts that are listed. These terms may be used to assist with indexing and searching
             for appropriate naming system instances.
            
          
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           padding:0px 4px 0px 4px
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4pxContext the content is intended to support
            
          
        

        
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            NamingSystem.jurisdiction : A legal or geographic region in which the naming system is
             intended to be used.
            
          
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           padding:0px 4px 0px 4px
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4pxIntended jurisdiction for naming system (if applicable)
            
             (
            To be conformant, the concept in this element SHALL be from the specified value set if
             any of the codes within the value set can apply to the concept being communicated.  If
             the value set does not cover the concept (based on human review), alternate codings (or,
             data type allowing, text) may be included instead.)
            
          
        

        
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            NamingSystem.usage : Provides guidance on the use of the namespace, including the handling
             of formatting characters, use of upper vs. lower case, etc.
            
          
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          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
        

        
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            NamingSystem.uniqueId : Indicates how the system may be identified when referenced in
             electronic exchange.
            
          
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           padding:0px 4px 0px 4px
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           padding:0px 4px 0px 4px
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4pxUnique identifiers used for system
            
          
        

        
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            NamingSystem.uniqueId.type : Identifies the unique identifier scheme used for this particular
             identifier.
            
          
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           padding:0px 4px 0px 4px
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           padding:0px 4px 0px 4px
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          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4pxoid | uuid | uri | other
            
             (
            )
          
        

        
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            3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav
            7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIW
            XMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i
            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC 

             naming systems.">type</span> 
            <a name="NamingSystem.type"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px"/> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#CodeableConcept">CodeableConcept</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">e.g. driver,  provider,  patient, bank etc
            <br/>  Binding:             <a href="valueset-namingsystem-identifier-system-type.html">Naming System Identifier System Type</a>  (            <a href="terminologies.html#preferred" title="Instances are encouraged to draw from the specified codes for interoperability

             purposes but are not required to do so to be considered conformant.">Preferred</a> )
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         #F7F7F7">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type"/>              <span title="NamingSystem.description : A free text natural language description of the naming

             system from a consumer's perspective. Details about what the namespace identifies
             including scope, granularity, version labeling, etc.">description</span> 
            <a name="NamingSystem.description"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="languages.html#translatable" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is a candidate for being translated">T</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#markdown">markdown</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Natural language description of the naming system
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         white">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Data Type"/>              <span title="NamingSystem.useContext : The content was developed with a focus and intent of

             supporting the contexts that are listed. These contexts may be general categories
             (gender, age, ...) or may be references to specific programs (insurance plans,
             studies, ...) and may be used to assist with indexing and searching for appropriate
             naming system instances.">useContext</span> 
            <a name="NamingSystem.useContext"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is included in summaries">Σ</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..*</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="metadatatypes.html#UsageContext">UsageContext</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">The context that the content is intended to support
            <br/>              <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         #F7F7F7">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Data Type"/>              <span title="NamingSystem.jurisdiction : A legal or geographic region in which the authority

             that maintains the resource is operating.  In general, the jurisdiction is also
             found in the useContext.  The useContext may reference additional jurisdictions
             because the defining jurisdiction does not necessarily limit the jurisdictions
             of use.">jurisdiction</span> 
            <a name="NamingSystem.jurisdiction"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is included in summaries">Σ</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..*</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#CodeableConcept">CodeableConcept</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Jurisdiction of the authority that maintains the naming system (if applicable)
            <br/>  Binding:             <a href="http://terminology.hl7.org/7.0.1/ValueSet-jurisdiction.html">Jurisdiction ValueSet</a>  (            <a href="terminologies.html#extensible" title="To be conformant, the concept in this element SHALL be from the specified value

             set if any of the codes within the value set can apply to the concept being communicated.
              If the value set does not cover the concept (based on human review), alternate
             codings (or, data type allowing, text) may be included instead.">Extensible</a> )
            <br/>              <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         white">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Primitive Data Type"/>              <span title="NamingSystem.purpose : Explanation of why this naming system is needed and why

             it has been designed as it has.">purpose</span> 
            <a name="NamingSystem.purpose"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="languages.html#translatable" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is a candidate for being translated">T</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#markdown">markdown</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Why this naming system is defined
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         #F7F7F7">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type"/>              <span title="NamingSystem.copyright : A copyright statement relating to the naming system and/or

             its contents. Copyright statements are notices of intellectual property ownership
             and can include restrictions on the use and publishing of the naming system.">copyright</span> 
            <a name="NamingSystem.copyright"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="languages.html#translatable" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is a candidate for being translated">T</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#markdown">markdown</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Notice about intellectual property ownership, can include restrictions on use
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         white">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Primitive Data Type"/>              <span title="NamingSystem.copyrightLabel : A short string (&lt;50 characters), suitable for

             inclusion in a page footer that identifies the copyright holder, effective period,
             and optionally whether rights are restricted. (e.g. 'All rights reserved', 'Some
             rights reserved').">copyrightLabel</span> 
            <a name="NamingSystem.copyrightLabel"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="languages.html#translatable" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is a candidate for being translated">T</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Copyright holder and year(s)
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         #F7F7F7">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type"/>              <span title="NamingSystem.approvalDate : The date on which the resource content was approved

             by the publisher. Approval happens once when the content is officially approved
             for usage.">approvalDate</span> 
            <a name="NamingSystem.approvalDate"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px"/> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#date">date</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">When the NamingSystem was approved by publisher
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         white">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Primitive Data Type"/>              <span title="NamingSystem.lastReviewDate : The date on which the resource content was last reviewed.

             Review happens periodically after approval but does not change the original approval
             date.">lastReviewDate</span> 
            <a name="NamingSystem.lastReviewDate"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px"/> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#date">date</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">When the NamingSystem was last reviewed by the publisher
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         #F7F7F7">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Data Type"/>              <span title="NamingSystem.effectivePeriod : The period during which the NamingSystem content

             was or is planned to be in active use.">effectivePeriod</span> 
            <a name="NamingSystem.effectivePeriod"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is included in summaries">Σ</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#Period">Period</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">When the NamingSystem is expected to be used
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         white">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Data Type"/>              <span title="NamingSystem.topic : Descriptions related to the content of the NamingSystem. Topics

             provide a high-level categorization as well as keywords for the NamingSystem that
             can be useful for filtering and searching.">topic</span> 
            <a name="NamingSystem.topic"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px"/> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..*</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#CodeableConcept">CodeableConcept</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">E.g. Education, Treatment, Assessment, etc
            <br/>  Binding:             <a href="valueset-definition-topic.html">Definition Topic</a>  (            <a href="terminologies.html#example" title="Instances are not expected or even encouraged to draw from the specified value

             set.  The value set merely provides examples of the types of concepts intended
             to be included.">Example</a> )
            <br/>              <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         #F7F7F7">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Data Type"/>              <span title="NamingSystem.author : An individiual or organization primarily involved in the

             creation and maintenance of the NamingSystem.">author</span> 
            <a name="NamingSystem.author"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px"/> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..*</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="metadatatypes.html#ContactDetail">ContactDetail</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Who authored the CodeSystem
            <br/>              <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         white">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Data Type"/>              <span title="NamingSystem.editor : An individual or organization primarily responsible for internal

             coherence of the NamingSystem.">editor</span> 
            <a name="NamingSystem.editor"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px"/> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..*</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="metadatatypes.html#ContactDetail">ContactDetail</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Who edited the NamingSystem
            <br/>              <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         #F7F7F7">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Data Type"/>              <span title="NamingSystem.reviewer : An individual or organization asserted by the publisher

             to be primarily responsible for review of some aspect of the NamingSystem.">reviewer</span> 
            <a name="NamingSystem.reviewer"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px"/> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..*</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="metadatatypes.html#ContactDetail">ContactDetail</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Who reviewed the NamingSystem
            <br/>              <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         white">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Data Type"/>              <span title="NamingSystem.endorser : An individual or organization asserted by the publisher

             to be responsible for officially endorsing the NamingSystem for use in some setting.">endorser</span> 
            <a name="NamingSystem.endorser"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px"/> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..*</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="metadatatypes.html#ContactDetail">ContactDetail</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Who endorsed the NamingSystem
            <br/>              <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         #F7F7F7">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Data Type"/>              <span title="NamingSystem.relatedArtifact : Related artifacts such as additional documentation,

             justification, dependencies, bibliographic references, and predecessor and successor
             artifacts. If the type is `successor` or `predecessor`, the related resource must
             be a NamingSystem.">relatedArtifact</span> 
            <a name="NamingSystem.relatedArtifact"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="conformance-rules.html#constraints" style="padding-left: 3px; padding-right: 3px; border: 1px maroon solid; font-weight: bold;

             color: #301212; background-color: #fdf4f4;; padding-left: 3px; padding-right: 3px;
             border: 1px maroon solid; font-weight: bold; color: #301212; background-color:
             #fdf4f4;" title="This element has or is affected by some invariants">C</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..*</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="metadatatypes.html#RelatedArtifact">RelatedArtifact</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Additional documentation, citations, etc
            <br/>              <span style="font-style: italic" title="nsd-4">+ Rule: Related artifact can't be depends-on or composed-of</span>             <br/>              <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         white">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
          EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Primitive Data Type"/>              <span title="NamingSystem.usage : Provides guidance on the use of the namespace, including the

             handling of formatting characters, use of upper vs. lower case, etc.">usage</span> 
            <a name="NamingSystem.usage"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="languages.html#translatable" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is a candidate for being translated">T</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">How/where is it used
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         #F7F7F7">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAJUlEQVR4Xu3IIQEAAAg
          DsHd9/w4EQIOamFnaBgAA4MMKAACAKwNp30CqZFfFmwAAAABJRU5ErkJggg==)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Element"/>              <span title="NamingSystem.uniqueId : Indicates how the system may be identified when referenced

             in electronic exchange.">uniqueId</span> 
            <a name="NamingSystem.uniqueId"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is included in summaries">Σ</a> 
            <a href="conformance-rules.html#constraints" style="padding-left: 3px; padding-right: 3px; border: 1px maroon solid; font-weight: bold;

             color: #301212; background-color: #fdf4f4;; padding-left: 3px; padding-right: 3px;
             border: 1px maroon solid; font-weight: bold; color: #301212; background-color:
             #fdf4f4;" title="This element has or is affected by some invariants">C</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">1..*</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="types.html#BackBoneElement">BackboneElement</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Unique identifiers used for system
            <br/>              <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         white">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALElEQVR4Xu3IsQ0AIAw
          Esez6+89AqKGGJj7JzVWS+mm3zgcAAMxwDQAAgFcaYAVAgNGLTjgAAAAASUVORK5CYII=)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Primitive Data Type"/>              <span title="NamingSystem.uniqueId.type : Identifies the unique identifier scheme used for this

             particular identifier.">type</span> 
            <a name="NamingSystem.uniqueId.type"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is included in summaries">Σ</a> 
            <a href="conformance-rules.html#constraints" style="padding-left: 3px; padding-right: 3px; border: 1px maroon solid; font-weight: bold;

             color: #301212; background-color: #fdf4f4;; padding-left: 3px; padding-right: 3px;
             border: 1px maroon solid; font-weight: bold; color: #301212; background-color:
             #fdf4f4;" title="This element has or is affected by some invariants">C</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">1..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#code">code</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">oid | uuid | uri | iri-stem | v2csmnemonic | other
            <br/>  Binding:             <a href="valueset-namingsystem-identifier-type.html">Naming System Identifier Type</a>  (            <a href="terminologies.html#required" title="To be conformant, the concept in this element SHALL be from the specified value

             set.">Required</a> )
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         #F7F7F7">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALElEQVR4Xu3IsQ0AIAw
          Esez6+89AqKGGJj7JzVWS+mm3zgcAAMxwDQAAgFcaYAVAgNGLTjgAAAAASUVORK5CYII=)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type"/>  
            <span title="NamingSystem.uniqueId.value : The string that should be sent over the wire to identify
             the code system or identifier system.
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
        

        
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(data: image/png;base64,iVBORw0KG
          goAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAMElEQVR42u3QwQkAMAwDsezq/WdoskKgFAoy6HkfV5LamJ1tc7MHAAD+5QQAAO
          CZBkurQFbnaRSlAAAAAElFTkSuQmCC)
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAw
            NdCABMPwMo2ctnoQAAAABJRU5ErkJggg==
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
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            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
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            7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIW
            XMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i
            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC 
            NamingSystem.uniqueId.preferred : Indicates whether this identifier is the &quot;preferred&quot;
             identifier of this type.
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
        

        
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(data: image/png;base64,iVBORw0KG
          goAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAMElEQVR42u3QwQkAMAwDsezq/WdoskKgFAoy6HkfV5LamJ1tc7MHAAD+5QQAAO
          CZBkurQFbnaRSlAAAAAElFTkSuQmCC)
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAw
            NdCABMPwMo2ctnoQAAAABJRU5ErkJggg==
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzMPbYccAgAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAMElEQVQ4y+3OQREAIBDDwA
            v+PQcFFN5MIyCzqHMKUGVCpMFLK97heq+gggoq+EiwAVjvMhFGmlEUAAAAAElFTkSuQmCC
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav
            7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIW
            XMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i
            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC 
            
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
        

        
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(data: image/png;base64,iVBORw0KG
          goAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgC
          sPVYVAgIJrA/sAAAAASUVORK5CYII=)
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAw
            NdCABMPwMo2ctnoQAAAABJRU5ErkJggg==
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzMPbYccAgAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAMElEQVQ4y+3OQREAIBDDwA
            v+PQcFFN5MIyCzqHMKUGVCpMFLK97heq+gggoq+EiwAVjvMhFGmlEUAAAAAElFTkSuQmCC
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzME+lXFigAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+3OsRUAIAjEUO
            L+O8cJABttJM11/x1qZAGqRBEVcNIqdWj1efDqQbb3HwwwwEfABmQUHSPM9dtDAAAAAElFTkSuQmCC
            data: image/png;base64,R0lGODlhEAAQAOZ/APrkusOiYvvfqbiXWaV2G+jGhdq1b8GgYf3v1frw3vTUlsWkZNewbcSjY/DQk
            ad4Hb6dXv3u0f3v1ObEgfPTlerJiP3w1v79+e7OkPrfrfnjuNOtZPrpydaxa+/YrvvdpP779ZxvFPvnwKKBQaFyF/369M2vdaqHRP
            z58/HNh/vowufFhfroxO3OkPrluv779tK0e6JzGProwvrow9m4eOnIifPTlPDPkP78+Naxaf3v0/zowfXRi+bFhLWUVv379/rnwPv
            szv3rye3LiPvnv+3MjPDasKiIS/789/3x2f747eXDg+7Mifvu0tu7f+/QkfDTnPXWmPrjsvrjtPbPgrqZW+/QlPz48K2EMv36866O
            UPvowat8Ivvgq/Pbrvzgq/PguvrgrqN0Gda2evfYm9+7d/rpw9q6e/LSku/Rl/XVl/LSlfrkt+zVqe7Wqv3x1/bNffbOf59wFdS6i
            f3u0vrqyP3owPvepfXQivDQkO/PkKh9K7STVf779P///////yH5BAEAAH8ALAAAAAAQABAAAAfNgH+Cg36FfoOIhH4JBxBghYl/hQ
            kNAV0IVT5GkJKLCwtQaSsSdx9aR26Gcwt2IkQaNRI6dBERIzCFDSgWSW8WCDkbBnoOQ3uFARc/JQJfCAZlT0x4ZFyFBxdNQT9ZCBN
            WKQoKUQ+FEDgcdTIAV14YDmg2CgSFA0hmQC5TLE4VRTdrKJAoxOeFCzZSwsw4U6BCizwUQhQyEaAPiAwCVNCY0FCNnA6GPAwYoETI
            FgY9loiRA4dToTYnsOxg8CBGHE6ICvEYQ4AKzkidfgoKBAA7 

             the code system or identifier system.">value</span> 
            <a name="NamingSystem.uniqueId.value"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:

             3px; color: black; null" title="This element is included in summaries">Σ</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">1..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">The unique identifier
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         white">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALElEQVR4Xu3IsQ0AIAw
          Esez6+89AqKGGJj7JzVWS+mm3zgcAAMxwDQAAgFcaYAVAgNGLTjgAAAAASUVORK5CYII=)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Primitive Data Type"/>              <span title="NamingSystem.uniqueId.preferred : Indicates whether this identifier is the &quot;preferred&qu

            ot; identifier of this type.">preferred</span> 
            <a name="NamingSystem.uniqueId.preferred"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="conformance-rules.html#constraints" style="padding-left: 3px; padding-right: 3px; border: 1px maroon solid; font-weight: bold;

             color: #301212; background-color: #fdf4f4;; padding-left: 3px; padding-right: 3px;
             border: 1px maroon solid; font-weight: bold; color: #301212; background-color:
             #fdf4f4;" title="This element has or is affected by some invariants">C</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#boolean">boolean</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Is this the id that should be used for this type
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         #F7F7F7">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALElEQVR4Xu3IsQ0AIAw
          Esez6+89AqKGGJj7JzVWS+mm3zgcAAMxwDQAAgFcaYAVAgNGLTjgAAAAASUVORK5CYII=)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type"/>              <span title="NamingSystem.uniqueId.comment : Notes about the past or intended usage of this

             identifier.">comment</span> 
            <a name="NamingSystem.uniqueId.comment"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px"/> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Notes about identifier usage
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         white">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALElEQVR4Xu3IsQ0AIAw
          Esez6+89AqKGGJj7JzVWS+mm3zgcAAMxwDQAAgFcaYAVAgNGLTjgAAAAASUVORK5CYII=)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Data Type"/>  
            <span title="NamingSystem.uniqueId.period : Identifies the period of time over which this identifier
             is considered appropriate to refer to the naming system.  Outside of this window, the
             identifier might be non-deterministic.
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
        

        
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(data: image/png;base64,iVBORw0KG
          goAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAI0lEQVR42u3QIQEAAAACIL/6/4MvTAQOkLYBAAB4kAAAANwMad9AqkRjgNAAAA
          AASUVORK5CYII=)
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAw
            NdCABMPwMo2ctnoQAAAABJRU5ErkJggg==
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzME+lXFigAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+3OsRUAIAjEUO
            L+O8cJABttJM11/x1qZAGqRBEVcNIqdWj1efDqQbb3HwwwwEfABmQUHSPM9dtDAAAAAElFTkSuQmCC
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAARnQU1BAACxj
            wv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAAadEVYdFNvZnR3YXJlAFBhaW50Lk5FVCB2My41LjEwMPRyoQAAAFxJREFUOE/NjE
            EOACEIA/0o/38GGw+agoXYeNnDJDCUDnd/gkoFKhWozJiZI3gLwY6rAgxhsPKTPUzycTl8lAryMyMsVQG6TFi6cHULyz8KOjC7OIQ
            KlQpU3uPjAwhX2CCcGsgOAAAAAElFTkSuQmCC 
            NamingSystem.replacedBy : For naming systems that are retired, indicates the naming system
             that should be used in their place (if any).
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
            (
            )
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
        

        
          
            
            
               Documentation for this format
            
          
        
      
    
  
  
    
  
  
    
  
  
  
  
  
  
  
    
      
      
    
  
  
    
      
      
    
  
  
  
  
    
    
    
  
  
    
    
    
  
  
    
    
    
  
  
  
  
  
    
      
    
  
  
  
    
      
      

             is considered appropriate to refer to the naming system.  Outside of this window,
             the identifier might be non-deterministic.">period</span> 
            <a name="NamingSystem.uniqueId.period"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="conformance-rules.html#constraints" style="padding-left: 3px; padding-right: 3px; border: 1px maroon solid; font-weight: bold;

             color: #301212; background-color: #fdf4f4;; padding-left: 3px; padding-right: 3px;
             border: 1px maroon solid; font-weight: bold; color: #301212; background-color:
             #fdf4f4;" title="This element has or is affected by some invariants">C</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#Period">Period</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">When is identifier valid?
            <br/>            </td>         </tr>         <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:

         #F7F7F7">
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAJUlEQVR4Xu3IIQEAAAg
          DsHd9/w4EQIOamFnaBgAA4MMKAACAKwNp30CqZFfFmwAAAABJRU5ErkJggg==)">
            <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type"/>              <span title="NamingSystem.uniqueId.authoritative : Indicates whether this identifier ie endorsed

             by the official owner of the associated naming system.">authoritative</span> 
            <a name="NamingSystem.uniqueId.authoritative"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="conformance-rules.html#constraints" style="padding-left: 3px; padding-right: 3px; border: 1px maroon solid; font-weight: bold;

             color: #301212; background-color: #fdf4f4;; padding-left: 3px; padding-right: 3px;
             border: 1px maroon solid; font-weight: bold; color: #301212; background-color:
             #fdf4f4;" title="This element has or is affected by some invariants">C</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td> 
          <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#boolean">boolean</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;

           border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Whether the identifier is authoritative
            <br/>            </td>         </tr>         <tr>           <td class="hierarchy" colspan="5">            <br/>              <a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Legend for this format">              <img alt="doco" src="data:(snipped in html view)" style="background-color: inherit"/>  Documentation for this format            </a>           </td>         </tr>       </table>     </div>   </text>   <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-implements">    <valueCanonical value="http://hl7.org/fhir/StructureDefinition/MetadataResource"/>   </extension>   <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">    <valueCode value="normative"/>   </extension>   <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">    <valueCode value="vocab"/>   </extension>   <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">    <valueInteger value="4"/>   </extension>   <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-security-category">    <valueCode value="anonymous"/>   </extension>   <url value="http://hl7.org/fhir/StructureDefinition/NamingSystem"/>   <version value="6.0.0-ballot3"/>   <name value="NamingSystem"/>   <status value="active"/>   <experimental value="false"/>   <date value="2025-12-17T09:50:17+00:00"/>   <publisher value="HL7 International / Terminology Infrastructure"/>   <contact>     <telecom>       <system value="url"/>       <value value="http://www.hl7.org/Special/committees/fiwg"/>     </telecom>   </contact>   <contact>     <telecom>       <system value="url"/>       <value value="http://www.hl7.org/Special/committees/Vocab"/>     </telecom>   </contact>   <description value="A curated namespace that issues unique symbols within that namespace for the identification

   of concepts, people, devices, etc.  Represents a &quot;System&quot; used within
   the Identifier and Coding data types."/> 
  <jurisdiction>     <coding>       <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/>       <code value="001"/>       <display value="World"/>     </coding>   </jurisdiction>   <fhirVersion value="6.0.0-ballot3"/>   <mapping>     <identity value="w5"/>     <uri value="http://hl7.org/fhir/fivews"/>     <name value="FiveWs Pattern Mapping"/>   </mapping>   <mapping>     <identity value="v2"/>     <uri value="http://hl7.org/v2"/>     <name value="HL7 V2 Mapping"/>   </mapping>   <mapping>     <identity value="rim"/>     <uri value="http://hl7.org/v3"/>     <name value="RIM Mapping"/>   </mapping>   <mapping>     <identity value="objimpl"/>     <uri value="http://hl7.org/fhir/object-implementation"/>     <name value="Object Implementation Information"/>   </mapping>   <kind value="resource"/>   <abstract value="false"/>   <type value="NamingSystem"/>   <baseDefinition value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>   <derivation value="specialization"/>   <snapshot>     <element id="NamingSystem">      <path value="NamingSystem"/>       <short value="System of unique identification"/> 
      <definition value="A curated namespace that issues unique symbols within that namespace for the identification
       of concepts, people, devices, etc.  Represents a &quot;System&quot; used within the Identifier
       and Coding data types.
      
      
      
        
        
        
        
        
        
      
      
        
        
        
        
        
        
      
      
        
        
        If a resource is contained in another resource, it SHALL NOT have a meta.versionId or
         a meta.lastUpdated
        
        
        
      
      
        
        
        If the resource is contained in another resource, it SHALL be referred to from elsewhere
         in the resource
        
        not(exists(for $id in f:contained/*/@id return $id[not(ancestor::f:contained/parent::*/descendant::f
        :reference/@value=concat('#', $id))]))
        
      
      
        
        
        
        
        
      
      
        
        
        
        
        
      
      
        
        
        
        
        not(exists(for $type in distinct-values(f:uniqueId/f:type/@value) return if (count(f:uniqueId[f:type
        /@value=$type and f:preferred/@value=true()])&gt;1) then $type else ()))
      
      
        
        
      
      
        
        
      
      
        
        
      
      
        
        
      
    
    
      
      
      The logical id of the resource, as used in the URL for the resource. Once assigned, this
       value never changes.
      The only time that a resource does not have an id is when it is being submitted to the
       server using a create operation.
      
      
      
        
        
        
      
      
        
      
      
    
    
      
      

       of concepts, people, devices, etc.  Represents a &quot;System&quot; used within
       the Identifier and Coding data types."/> 
      <min value="0"/>       <max value="*"/>       <base>         <path value="NamingSystem"/>         <min value="0"/>         <max value="*"/>       </base>       <constraint>         <key value="cnl-0"/>         <severity value="warning"/>         <human value="Name should be usable as an identifier for the module by machine processing applications

         such as code generation"/> 
        <expression value="name.exists() implies name.matches('^[A-Z]([A-Za-z0-9_]){1,254}$')"/>         <source value="http://hl7.org/fhir/StructureDefinition/NamingSystem"/>       </constraint>       <constraint>         <key value="nsd-1"/>         <severity value="error"/>         <human value="Root systems cannot have uuid identifiers"/>         <expression value="kind != 'root' or uniqueId.all(type != 'uuid')"/>         <source value="http://hl7.org/fhir/StructureDefinition/NamingSystem"/>       </constraint>       <constraint>         <key value="nsd-2"/>         <severity value="error"/>         <human value="Can't have more than one preferred identifier for a type"/>         <expression value="uniqueId.where(preferred = true).select(type).isDistinct()"/>         <source value="http://hl7.org/fhir/StructureDefinition/NamingSystem"/>       </constraint>       <constraint>         <key value="nsd-3"/>         <severity value="error"/>         <human value="Can't have more than one authoritative identifier for a type/period combination

         (only one authoritative identifier allowed at any given point of time)"/> 
        <expression value="uniqueId.where(authoritative = true).select(type.toString() &amp; period.start.toString()

         &amp; period.end.toString()).isDistinct()"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/NamingSystem"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>       <mapping>         <identity value="w5"/>         <map value="conformance.behavior,conformance.terminology"/>       </mapping>       <mapping>         <identity value="v2"/>         <map value="N/A"/>       </mapping>       <mapping>         <identity value="rim"/>         <map value="N/A"/>       </mapping>     </element>     <element id="NamingSystem.id">      <path value="NamingSystem.id"/>       <short value="Logical id of this artifact"/>       <definition value="The logical id of the resource, as used in the URL for the resource. Once assigned,

       this value never changes."/> 
      <comment value="Within the context of the FHIR RESTful interactions, the resource has an id except

       for cases like the create and conditional update. Otherwise, the use of the resouce
       id depends on the given use case."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="Resource.id"/>         <min value="0"/>         <max value="1"/>       </base>       <!--  Note: special primitive values have a FHIRPath system type. e.g. this is compiler

       magic (j)  -->
      <type>         <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">          <valueUrl value="string"/>         </extension>         <code value="http://hl7.org/fhirpath/System.String"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>     </element>     <element id="NamingSystem.meta">      <path value="NamingSystem.meta"/>       <short value="Metadata about the resource"/> 
      <definition value="The metadata about the resource. This is content that is maintained by the infrastructure.
       Changes to the content may not always be associated with version changes to the resource.
      
      
      
        
        
        
      
      
        
      
      
    
    
      
      
      A reference to a set of rules that were followed when the resource was constructed, and
       which must be understood when processing the content.
      Asserting this rule set restricts the content to be only understood by a limited set of
       trading partners. This inherently limits the usefulness of the data in the long term.
       However, the existing health eco-system is highly fractured, and not yet ready to define,
       collect, and exchange data in a generally computable sense. Wherever possible, implementers
       and/or specification writers should avoid using this element. 

This element is labelled as a modifier because the implicit rules may provide additional
       knowledge about the resource that modifies it's meaning or interpretation.
      
      
      
        
        
        
      
      
        
      
      
      
    
    
      
      
      
      Language is provided to support indexing and accessibility (typically, services such as
       text to speech use the language tag). The html language tag in the narrative applies 
       to the narrative. The language tag on the resource may be used to specify the language
       of other presentations generated from the data in the resource  Not all the content has
       to be in the base language. The Resource.language should not be assumed to apply to the
       narrative automatically. If a language is specified, it should it also be specified on
       the div element in the html (see rules in HTML5 for information about the relationship
       between xml:lang and the html lang attribute).
      
      
      
        
        
        
      
      
        
      
      
        
          
            
          
        
        
          
        
        
          
        
        
        
        
          
        
      
    
    
      
      
      A human-readable narrative that contains a summary of the resource, and may be used to
       represent the content of the resource to a human. The narrative need not encode all the
       structured data, but is required to contain sufficient detail to make it &quot;clinically
       safe&quot; for a human to just read the narrative. Resource definitions may define what
       content should be represented in the narrative to ensure clinical safety.
      Contained resources do not have narrative. Resources that are not contained SHOULD have
       a narrative. In some cases, a resource may only have text with little or no additional
       discrete data (as long as all minOccurs=1 elements are satisfied).  This may be necessary
       for data from legacy systems where information is captured as a &quot;text blob&quot;
       or where text is additionally entered raw or narrated and encoded in formation is added
       later.
      
      
      
      
      
      
      
        
        
        
      
      
        
      
      
      
        
        
      
    
    
      
      
      These resources do not have an independent existence apart from the resource that contains
       them - they cannot be identified independently, and nor can they have their own independent
       transaction scope.
      This should never be done when the content can be identified properly, as once identification
       is lost, it is extremely difficult (and context dependent) to restore it again.
      
      
      
      
      
      
        
        
        
      
      
        
      
      
        
        
      
    
    
      
      

       Changes to the content might not always be associated with version changes to the
       resource."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="Resource.meta"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="Meta"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>     </element>     <element id="NamingSystem.implicitRules">      <path value="NamingSystem.implicitRules"/>       <short value="A set of rules under which this content was created"/>       <definition value="A reference to a set of rules that were followed when the resource was constructed,

       and which must be understood when processing the content. Often, this is a reference
       to an implementation guide that defines the special rules along with other profiles
       etc. For DomainResources, if more than one implicitRules policy applies, additional
       policies may be conveyed using the [additionalImplicitRules](https://build.fhir.org/ig/HL7/fh
      ir-extensions/StructureDefinition-additionalImplicitRules.html) extension."/> 
      <comment value="Asserting this rule set restricts the content to be only understood by a limited

       set of trading partners. This inherently limits the usefulness of the data in the
       long term. However, the existing health eco-system is highly fractured, and not
       yet ready to define, collect, and exchange data in a generally computable sense.
       Wherever possible, implementers and/or specification writers should avoid using
       this element. Often, when used, the URL is a reference to an implementation guide
       that defines these special rules as part of its narrative along with other profiles,
       value sets, etc."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="Resource.implicitRules"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="uri"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="true"/>       <isModifierReason value="This element is labeled as a modifier because the implicit rules may provide additional

       knowledge about the resource that modifies its meaning or interpretation"/> 
      <isSummary value="true"/>     </element>     <element id="NamingSystem.language">      <path value="NamingSystem.language"/>       <short value="Language of the resource content"/>       <definition value="The base language in which the resource is written."/>       <comment value="Language is provided to support indexing and accessibility (typically, services

       such as text to speech use the language tag). The html language tag in the narrative
       applies  to the narrative. The language tag on the resource may be used to specify
       the language of other presentations generated from the data in the resource. Not
       all the content has to be in the base language. The Resource.language should not
       be assumed to apply to the narrative automatically. If a language is specified,
       it should it also be specified on the div element in the html (see rules in HTML5
       for information about the relationship between xml:lang and the html lang attribute)."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="Resource.language"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="code"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>       <binding>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">          <valueString value="Language"/>         </extension>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">          <valueBoolean value="true"/>         </extension>         <strength value="required"/>         <description value="IETF language tag for a human language"/>         <valueSet value="http://hl7.org/fhir/ValueSet/all-languages|6.0.0-ballot3"/>         <additional>           <purpose value="starter"/>           <valueSet value="http://hl7.org/fhir/ValueSet/languages"/>         </additional>       </binding>     </element>     <element id="NamingSystem.text">      <path value="NamingSystem.text"/>       <short value="Text summary of the resource, for human interpretation"/>       <definition value="A human-readable narrative that contains a summary of the resource and can be used

       to represent the content of the resource to a human. The narrative need not encode
       all the structured data, but is required to contain sufficient detail to make it
       &quot;clinically safe&quot; for a human to just read the narrative. Resource definitions
       may define what content should be represented in the narrative to ensure clinical
       safety."/> 
      <comment value="Contained resources do not have a narrative. Resources that are not contained SHOULD

       have a narrative. In some cases, a resource may only have text with little or no
       additional discrete data (as long as all minOccurs=1 elements are satisfied). 
       This may be necessary for data from legacy systems where information is captured
       as a &quot;text blob&quot; or where text is additionally entered raw or narrated
       and encoded information is added later."/> 
      <alias value="narrative"/>       <alias value="html"/>       <alias value="xhtml"/>       <alias value="display"/>       <min value="0"/>       <max value="1"/>       <base>         <path value="DomainResource.text"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="Narrative"/>       </type>       <condition value="dom-6"/>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>       <mapping>         <identity value="rim"/>         <map value="Act.text?"/>       </mapping>     </element>     <element id="NamingSystem.contained">      <path value="NamingSystem.contained"/>       <short value="Contained, inline Resources"/>       <definition value="These resources do not have an independent existence apart from the resource that

       contains them - they cannot be identified independently, nor can they have their
       own independent transaction scope. This is allowed to be a Parameters resource
       if and only if it is referenced by a resource that provides context/meaning."/> 
      <comment value="This should never be done when the content can be identified properly, as once

       identification is lost, it is extremely difficult (and context dependent) to restore
       it again. Contained resources may have profiles and tags in their meta elements,
       but SHALL NOT have security labels. Contained resources may be a resource type
       defined in the FHIR specification, or an [additional resource](resource.html#additional)."/> 
      <alias value="inline resources"/>       <alias value="anonymous resources"/>       <alias value="contained resources"/>       <min value="0"/>       <max value="*"/>       <base>         <path value="DomainResource.contained"/>         <min value="0"/>         <max value="*"/>       </base>       <type>         <code value="Resource"/>       </type>       <condition value="dom-2"/>       <condition value="dom-4"/>       <condition value="dom-3"/>       <condition value="dom-5"/>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>       <mapping>         <identity value="rim"/>         <map value="N/A"/>       </mapping>     </element>     <element id="NamingSystem.extension">      <path value="NamingSystem.extension"/>       <short value="Additional content defined by implementations"/> 
      <definition value="May be used to represent additional information that is not part of the basic definition
       of the resource. In order to make the use of extensions safe and manageable, there is
       a strict set of governance  applied to the definition and use of extensions. Though any
       implementer is allowed to define an extension, there is a set of requirements that SHALL
       be met as part of the definition of the extension.
      There can be no stigma associated with the use of extensions by any application, project,
       or standard - regardless of the institution or jurisdiction that uses or defines the extensions.
        The use of extensions is what allows the FHIR specification to retain a core level of
       simplicity for everyone.
      
      
      
      
      
        
        
        
      
      
        
      
      
        
        
      
    
    
      
      

       of the resource. To make the use of extensions safe and managable, there is a strict
       set of governance applied to the definition and use of extensions. Though any implementer
       can define an extension, there is a set of requirements that SHALL be met as part
       of the definition of the extension."/> 
      <comment value="There can be no stigma associated with the use of extensions by any application,

       project, or standard - regardless of the institution or jurisdiction that uses
       or defines the extensions.  The use of extensions is what allows the FHIR specification
       to retain a core level of simplicity for everyone."/> 
      <alias value="extensions"/>       <alias value="user content"/>       <min value="0"/>       <max value="*"/>       <base>         <path value="DomainResource.extension"/>         <min value="0"/>         <max value="*"/>       </base>       <type>         <code value="Extension"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>       <mapping>         <identity value="rim"/>         <map value="N/A"/>       </mapping>     </element>     <element id="NamingSystem.modifierExtension">      <path value="NamingSystem.modifierExtension"/>       <short value="Extensions that cannot be ignored"/> 
      <definition value="May be used to represent additional information that is not part of the basic definition
       of the resource, and that modifies the understanding of the element that contains it.
       Usually modifier elements provide negation or qualification. In order to make the use
       of extensions safe and manageable, there is a strict set of governance applied to the
       definition and use of extensions. Though any implementer is allowed to define an extension,
       there is a set of requirements that SHALL be met as part of the definition of the extension.
       Applications processing a resource are required to check for modifier extensions.
      There can be no stigma associated with the use of extensions by any application, project,
       or standard - regardless of the institution or jurisdiction that uses or defines the extensions.
        The use of extensions is what allows the FHIR specification to retain a core level of
       simplicity for everyone.
      
      
      
      
      
        
        
        
      
      
        
      
      
      
        
        
      
    
    
      
      
      A natural language name identifying the naming system. This name should be usable as an
       identifier for the module by machine processing applications such as code generation.
      The name is not expected to be globally unique. The name should be a simple alpha-numeric
       type name to ensure that it is computable friendly. The&quot;symbolic name&quot; for an
       OID would be captured as an extension.
      
      
      
      
        
      
      
    
    
      
      
      
      Allows filtering of naming systems that are appropriate for use vs. not.  
This is labeled as &quot;Is Modifier&quot; because applications should not use a retired
       naming system without due consideration.
      
      
      
        
      
      
      
      
        
          
        
        
          
        
        
        
        
          
        
      
      
        
        
      
    
    
      
      
      
      
      
      
        
      
      
        
          
        
        
        
        
          
        
      
      
        
        
      
    
    
      
      
      The date  (and optionally time) when the naming system was published. The date must change
       if and when the business version changes and it must change if the status code changes.
       In addition, it should change when the substantive content of the naming system changes.
      Note that this is not the same as the resource last-modified-date, since the resource
       may be a secondary representation of the naming system. Additional specific dates may
       be added as extensions or be found by consulting Provenances associated with past versions
       of the resource.
      
      
      
      
        
      
      
      
        
        
      
    
    
      
      
      
      Usually an organization, but may be an individual. The publisher (or steward) of the naming
       system is the organization or individual primarily responsible for the maintenance and
       upkeep of the naming system. This is not necessarily the same individual or organization
       that developed and initially authored the content. The publisher is the primary point
       of contact for questions or issues with the naming system. This item SHOULD be populated
       unless the information is available from context.
      Helps establish the &quot;authority/credibility&quot; of the naming system.  May also
       allow for contact.
      
      
      
        
      
      
      
        
        
      
    
    
      
      
      
      
      
      
      
        
      
      
    
    
      
      
      The name of the organization that is responsible for issuing identifiers or codes for
       this namespace and ensuring their non-collision.
      This is the primary organization.  Responsibility for some aspects of a namespace may
       be delegated.
      
      
      
        
      
      
        
        
      
    
    
      
      
      
      This will most commonly be used for identifier namespaces, but categories could potentially
       be useful for code systems and authorities as well.
      
      
      
        
      
      
        
          
        
        
          
        
        
        A coded type for an identifier that can be used to determine which identifier to use for
         a specific purpose.
        
          
        
      
    
    
      
      
      A free text natural language description of the naming system from a consumer's perspective.
       Details about what the namespace identifies including scope, granularity, version labeling,
       etc.
      This description can be used to capture details such as why the naming system was built,
       comments about misuse, instructions for clinical use and interpretation, literature references,
       examples from the paper world, etc. It is not a rendering of the naming system as conveyed
       in the 'text' field of the resource itself. This item SHOULD be populated unless the information
       is available from context (e.g. the language of the profile is presumed to be the predominant
       language in the place the profile was created).
      
      
      
        
      
    
    
      
      
      The content was developed with a focus and intent of supporting the contexts that are
       listed. These terms may be used to assist with indexing and searching for appropriate
       naming system instances.
      When multiple useContexts are specified, there is no expectation whether all or any of
       the contexts apply.
      
      
      
      
        
      
      
    
    
      
      
      
      It may be possible for the naming system to be used in jurisdictions other than those
       for which it was originally designed or intended.
      
      
      
        
      
      
      
        
          
        
        
          
        
        
        
        
          
        
      
    
    
      
      
      Provides guidance on the use of the namespace, including the handling of formatting characters,
       use of upper vs. lower case, etc.
      
      
      
        
      
    
    
      
      
      
      Multiple identifiers may exist, either due to duplicate registration, regional rules,
       needs of different communication technologies, etc.
      
      
      
        
      
      
        
        
        
        
        
        
      
    
    
      
      
      
      unique id for the element within a resource (for internal references). This may be any
       string value that does not contain spaces.
      
      
      
        
        
        
      
      
        
      
      
        
        
      
    
    
      
      

       of the resource and that modifies the understanding of the element that contains
       it and/or the understanding of the containing element's descendants. Usually modifier
       elements provide negation or qualification. To make the use of extensions safe
       and managable, there is a strict set of governance applied to the definition and
       use of extensions. Though any implementer is allowed to define an extension, there
       is a set of requirements that SHALL be met as part of the definition of the extension.
       Applications processing a resource are required to check for modifier extensions.
Modifier extensions SHALL NOT change the meaning of any elements on Resource or
       DomainResource (including cannot change the meaning of modifierExtension itself)."/> 
      <comment value="There can be no stigma associated with the use of extensions by any application,

       project, or standard - regardless of the institution or jurisdiction that uses
       or defines the extensions.  The use of extensions is what allows the FHIR specification
       to retain a core level of simplicity for everyone."/> 
      <requirements value="Modifier extensions allow for extensions that *cannot* be safely ignored to be

       clearly distinguished from the vast majority of extensions which can be safely
       ignored.  This promotes interoperability by eliminating the need for implementers
       to prohibit the presence of extensions. For further information, see the [definition
       of modifier extensions](extensibility.html#modifierExtension)."/> 
      <alias value="extensions"/>       <alias value="user content"/>       <min value="0"/>       <max value="*"/>       <base>         <path value="DomainResource.modifierExtension"/>         <min value="0"/>         <max value="*"/>       </base>       <type>         <code value="Extension"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="true"/>       <isModifierReason value="Modifier extensions are expected to modify the meaning or interpretation of the

       resource that contains them"/> 
      <isSummary value="true"/>       <mapping>         <identity value="rim"/>         <map value="N/A"/>       </mapping>     </element>     <element id="NamingSystem.url">      <path value="NamingSystem.url"/>       <short value="Canonical identifier for this naming system, represented as a URI (globally unique)"/>       <definition value="An absolute URI that is used to identify this naming system when it is referenced

       in a specification, model, design or an instance; also called its canonical identifier.
       This SHOULD be globally unique and SHOULD be a literal address at which an authoritative
       instance of this naming system is (or will be) published. This URL can be the target
       of a canonical reference. It SHALL remain the same when the naming system is stored
       on different servers."/> 
      <comment value="Can be a urn:uuid: or a urn:oid: but real http: addresses are preferred.  Multiple

       instances may share the same URL if they have a distinct version.
The determination of when to create a new version of a resource (same url, new
       version) vs. defining a new artifact is up to the author.  Considerations for making
       this decision are found in [Technical and Business Versions](resource.html#versions).
       
In some cases, the resource can no longer be found at the stated url, but the url
       itself cannot change. Implementations can use the [meta.source](resource.html#meta)
       element to indicate where the current master source of the resource can be found."/> 
      <requirements value="Allows the naming system to be referenced by a single globally unique identifier."/>       <min value="0"/>       <max value="1"/>       <base>         <path value="NamingSystem.url"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="uri"/>       </type>       <constraint>         <key value="cnl-1"/>         <severity value="warning"/>         <human value="URL should not contain | or # - these characters make processing canonical references

         problematic"/> 
        <expression value="exists() implies matches('^[^|# ]+$')"/>         <source value="http://hl7.org/fhir/StructureDefinition/NamingSystem"/>       </constraint>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <mapping>         <identity value="w5"/>         <map value="FiveWs.identifier"/>       </mapping>     </element>     <element id="NamingSystem.identifier">      <path value="NamingSystem.identifier"/>       <short value="Additional identifier for the naming system (business identifier)"/>       <definition value="A formal identifier that is used to identify this naming system when it is represented

       in other formats, or referenced in a specification, model, design or an instance."/> 
      <requirements value="Allows externally provided and/or usable business identifiers to be easily associated

       with the naming system."/> 
      <min value="0"/>       <max value="*"/>       <base>         <path value="NamingSystem.identifier"/>         <min value="0"/>         <max value="*"/>       </base>       <type>         <code value="Identifier"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <mapping>         <identity value="w5"/>         <map value="FiveWs.identifier"/>       </mapping>       <mapping>         <identity value="objimpl"/>         <map value="no-gen-base"/>       </mapping>     </element>     <element id="NamingSystem.version">      <path value="NamingSystem.version"/>       <short value="Business version of the naming system"/>       <definition value="The identifier that is used to identify this version of the naming system when

       it is referenced in a specification, model, design or instance. This is an arbitrary
       value managed by the naming system author and is not expected to be globally unique.
       For example, it might be a timestamp (e.g. yyyymmdd) if a managed version is not
       available. There is also no expectation that versions can be placed in a lexicographical
       sequence."/> 
      <comment value="There may be different naming system instances that have the same identifier but

       different versions.  The version can be appended to the url in a reference to allow
       a reference to a particular business version of the naming system with the format
       [url]|[version]. The version SHOULD NOT contain a '#' - see [Business Version](resource.html#
      bv-format)."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="NamingSystem.version"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="string"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <mapping>         <identity value="w5"/>         <map value="FiveWs.version"/>       </mapping>     </element>     <element id="NamingSystem.versionAlgorithm[x]">      <path value="NamingSystem.versionAlgorithm[x]"/>       <short value="How to compare versions"/>       <definition value="Indicates the mechanism used to compare versions to determine which NamingSystem

       is more current."/> 
      <comment value="If set as a string, this is a FHIRPath expression that has two additional context

       variables passed in - %version1 and %version2 and will return a negative number
       if version1 is newer, a positive number if version2 and a 0 if the version ordering
       can't be successfully be determined."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="NamingSystem.versionAlgorithm[x]"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="string"/>       </type>       <type>         <code value="Coding"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <binding>         <strength value="extensible"/>         <valueSet value="http://hl7.org/fhir/ValueSet/version-algorithm"/>       </binding>     </element>     <element id="NamingSystem.name">      <path value="NamingSystem.name"/>       <short value="Name for this naming system (computer friendly)"/>       <definition value="A natural language name identifying the naming system. This name should be usable

       as an identifier for the module by machine processing applications such as code
       generation."/> 
      <comment value="The name is not expected to be globally unique. The name should be a simple alphanumeric

       type name to ensure that it is machine-processing friendly.The&quot;symbolic name&quot;
       for an OID would be captured as an extension."/> 
      <requirements value="Support human navigation and code generation."/>       <min value="1"/>       <max value="1"/>       <base>         <path value="NamingSystem.name"/>         <min value="1"/>         <max value="1"/>       </base>       <type>         <code value="string"/>       </type>       <condition value="cnl-0"/>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>     </element>     <element id="NamingSystem.title">      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">        <valueBoolean value="true"/>       </extension>       <path value="NamingSystem.title"/>       <short value="Title for this naming system (human friendly)"/>       <definition value="A short, descriptive, user-friendly title for the naming system."/>       <comment value="This title does not need to be machine-processing friendly and may contain punctuation,

       white-space, etc."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="NamingSystem.title"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="string"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>     </element>     <element id="NamingSystem.status">      <path value="NamingSystem.status"/>       <short value="draft | active | retired | unknown"/>       <definition value="The status of this naming system. Enables tracking the life-cycle of the content."/>       <comment value="Allows filtering of naming systems that are appropriate for use versus not.
See guidance around (not) making local changes to elements [here](canonicalresource.html#loca
      lization)."/> 
      <min value="1"/>       <max value="1"/>       <base>         <path value="NamingSystem.status"/>         <min value="1"/>         <max value="1"/>       </base>       <type>         <code value="code"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="true"/>       <isModifierReason value="This is labeled as &quot;Is Modifier&quot; because applications should not use

       a retired {{title}} without due consideration"/> 
      <isSummary value="true"/>       <binding>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">          <valueString value="PublicationStatus"/>         </extension>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">          <valueBoolean value="true"/>         </extension>         <strength value="required"/>         <description value="The lifecycle status of an artifact."/>         <valueSet value="http://hl7.org/fhir/ValueSet/publication-status|6.0.0-ballot3"/>       </binding>       <mapping>         <identity value="w5"/>         <map value="FiveWs.status"/>       </mapping>     </element>     <element id="NamingSystem.kind">      <path value="NamingSystem.kind"/>       <short value="codesystem | identifier | root"/>       <definition value="Indicates the purpose for the naming system - what kinds of things does it make

       unique?"/> 
      <min value="1"/>       <max value="1"/>       <base>         <path value="NamingSystem.kind"/>         <min value="1"/>         <max value="1"/>       </base>       <type>         <code value="code"/>       </type>       <condition value="nsd-1"/>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <binding>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">          <valueString value="NamingSystemType"/>         </extension>         <strength value="required"/>         <description value="Identifies the purpose of the naming system."/>         <valueSet value="http://hl7.org/fhir/ValueSet/namingsystem-type|6.0.0-ballot3"/>       </binding>       <mapping>         <identity value="w5"/>         <map value="FiveWs.class"/>       </mapping>     </element>     <element id="NamingSystem.experimental">      <path value="NamingSystem.experimental"/>       <short value="For testing only - never for real usage"/>       <definition value="A Boolean value to indicate that this naming system is authored for testing purposes

       (or education/evaluation/marketing) and no version of this resource will ever be
       intended for genuine usage."/> 
      <comment value="Allows filtering of naming systems that are appropriate for use versus not. Experimental

       resources might include example instances in implementation guides, instances created
       solely for testing purposes, etc. If experimental is 'true' for any version of
       a resource, it should be true for all versions of the resource.  (If experimental
       changes, then it is being misused or a resource that was never intended for real-world
       use has unexpectedly changed its purpose.).
Experimental resources are not expected to be stable and may well have breaking
       changes without a corresponding change to the 'version' element."/> 
      <requirements value="Enables experimental content to be developed following the same lifecycle that

       would be used for a production-level naming system."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="NamingSystem.experimental"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="boolean"/>       </type>       <meaningWhenMissing value="If absent, this resource is treated as though it is not experimental."/>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <mapping>         <identity value="w5"/>         <map value="FiveWs.class"/>       </mapping>     </element>     <element id="NamingSystem.date">      <path value="NamingSystem.date"/>       <short value="Date last changed"/>       <definition value="The date  (and optionally time) when the naming system was last significantly changed.

       The date must change when the business version changes and it must change if the
       status code changes. In addition, it should change when the substantive content
       of the naming system changes."/> 
      <comment value="The date is often not tracked until the resource is published, but may be present

       on draft content. Note that this is not the same as the resource last-modified-date,
       since the resource may be a secondary representation of the naming system. Additional
       specific dates may be added as extensions or be found by consulting Provenances
       associated with past versions of the resource.
See guidance around (not) making local changes to elements [here](canonicalresource.html#loca
      lization)."/> 
      <alias value="Revision Date"/>       <min value="1"/>       <max value="1"/>       <base>         <path value="NamingSystem.date"/>         <min value="1"/>         <max value="1"/>       </base>       <type>         <code value="dateTime"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <mapping>         <identity value="w5"/>         <map value="FiveWs.recorded"/>       </mapping>     </element>     <element id="NamingSystem.publisher">      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">        <valueBoolean value="true"/>       </extension>       <path value="NamingSystem.publisher"/>       <short value="Name of the publisher/steward (organization or individual)"/>       <definition value="The name of the organization or individual responsible for the release and ongoing

       maintenance of the naming system."/> 
      <comment value="Usually an organization but may be an individual. The publisher (or steward) of

       the naming system is the organization or individual primarily responsible for the
       maintenance and upkeep of the naming system. This is not necessarily the same individual
       or organization that developed and initially authored the content. The publisher
       is the primary point of contact for questions or issues with the naming system.
       This item SHOULD be populated unless the information is available from context."/> 
      <requirements value="Helps establish the &quot;authority/credibility&quot; of the naming system.  May

       also allow for contact."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="NamingSystem.publisher"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="string"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <mapping>         <identity value="w5"/>         <map value="FiveWs.witness"/>       </mapping>     </element>     <element id="NamingSystem.contact">      <path value="NamingSystem.contact"/>       <short value="Contact details for the publisher"/>       <definition value="Contact details to assist a user in finding and communicating with the publisher."/>       <comment value="May be a web site, an email address, a telephone number, etc.
See guidance around (not) making local changes to elements [here](canonicalresource.html#loca
      lization)."/> 
      <min value="0"/>       <max value="*"/>       <base>         <path value="NamingSystem.contact"/>         <min value="0"/>         <max value="*"/>       </base>       <type>         <code value="ContactDetail"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>     </element>     <element id="NamingSystem.responsible">      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">        <valueBoolean value="true"/>       </extension>       <path value="NamingSystem.responsible"/>       <short value="Who maintains system namespace?"/>       <definition value="The name of the organization that is responsible for issuing identifiers or codes

       for this namespace and ensuring their non-collision."/> 
      <comment value="This is the primary organization.  Responsibility for some aspects of a namespace

       may be delegated."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="NamingSystem.responsible"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="string"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>       <mapping>         <identity value="w5"/>         <map value="FiveWs.witness"/>       </mapping>     </element>     <element id="NamingSystem.type">      <path value="NamingSystem.type"/>       <short value="e.g. driver,  provider,  patient, bank etc"/>       <definition value="Categorizes a naming system for easier search by grouping related naming systems."/>       <comment value="This will most commonly be used for identifier namespaces, but categories could

       potentially be useful for code systems and authorities as well."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="NamingSystem.type"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="CodeableConcept"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>       <binding>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">          <valueString value="NamingSystemIdentifierSystemType"/>         </extension>         <strength value="preferred"/>         <description value="A coded type for an identifier that can be used to determine which identifier to

         use for a specific purpose."/> 
        <valueSet value="http://hl7.org/fhir/ValueSet/namingsystem-identifier-system-type"/>       </binding>     </element>     <element id="NamingSystem.description">      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">        <valueBoolean value="true"/>       </extension>       <path value="NamingSystem.description"/>       <short value="Natural language description of the naming system"/>       <definition value="A free text natural language description of the naming system from a consumer's

       perspective. Details about what the namespace identifies including scope, granularity,
       version labeling, etc."/> 
      <comment value="This description can be used to capture details such as comments about misuse,

       instructions for clinical use and interpretation, literature references, examples
       from the paper world, etc. It is not a rendering of the naming system as conveyed
       in the 'text' field of the resource itself. This item SHOULD be populated unless
       the information is available from context (e.g. the language of the naming system
       is presumed to be the predominant language in the place the naming system was created)."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="NamingSystem.description"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="markdown"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="NamingSystem.useContext">      <path value="NamingSystem.useContext"/>       <short value="The context that the content is intended to support"/>       <definition value="The content was developed with a focus and intent of supporting the contexts that

       are listed. These contexts may be general categories (gender, age, ...) or may
       be references to specific programs (insurance plans, studies, ...) and may be used
       to assist with indexing and searching for appropriate naming system instances."/> 
      <comment value="When multiple useContexts are specified, there is no expectation that all or any

       of the contexts apply."/> 
      <requirements value="Assist in searching for appropriate content."/>       <min value="0"/>       <max value="*"/>       <base>         <path value="NamingSystem.useContext"/>         <min value="0"/>         <max value="*"/>       </base>       <type>         <code value="UsageContext"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>     </element>     <element id="NamingSystem.jurisdiction">      <path value="NamingSystem.jurisdiction"/>       <short value="Jurisdiction of the authority that maintains the naming system (if applicable)"/>       <definition value="A legal or geographic region in which the authority that maintains the resource

       is operating.  In general, the jurisdiction is also found in the useContext.  The
       useContext may reference additional jurisdictions because the defining jurisdiction
       does not necessarily limit the jurisdictions of use."/> 
      <comment value="It may be possible for the naming system to be used in jurisdictions other than

       those for which it was originally designed or intended.
DEPRECATION NOTE: For consistency, implementations are encouraged to migrate to
       using the new 'jurisdiction' code in the useContext element.  (I.e. useContext.code
       indicating http://terminology.hl7.org/CodeSystem/usage-context-type#jurisdiction
       and useContext.valueCodeableConcept indicating the jurisdiction.)"/> 
      <min value="0"/>       <max value="*"/>       <base>         <path value="NamingSystem.jurisdiction"/>         <min value="0"/>         <max value="*"/>       </base>       <type>         <code value="CodeableConcept"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <binding>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">          <valueString value="Jurisdiction"/>         </extension>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">          <valueBoolean value="true"/>         </extension>         <strength value="extensible"/>         <description value="Countries and regions within which this artifact is targeted for use."/>         <valueSet value="http://terminology.hl7.org/ValueSet/jurisdiction"/>       </binding>     </element>     <element id="NamingSystem.purpose">      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">        <valueBoolean value="true"/>       </extension>       <path value="NamingSystem.purpose"/>       <short value="Why this naming system is defined"/>       <definition value="Explanation of why this naming system is needed and why it has been designed as

       it has."/> 
      <comment value="This element does not describe the usage of the code system. Instead, it provides

       traceability of ''why'' the resource is either needed or ''why'' it is defined
       as it is.  This may be used to point to source materials or specifications that
       drove the structure of this code system."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="NamingSystem.purpose"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="markdown"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>       <mapping>         <identity value="w5"/>         <map value="FiveWs.why[x]"/>       </mapping>       <mapping>         <identity value="objimpl"/>         <map value="no-gen-base"/>       </mapping>     </element>     <element id="NamingSystem.copyright">      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">        <valueBoolean value="true"/>       </extension>       <path value="NamingSystem.copyright"/>       <short value="Notice about intellectual property ownership, can include restrictions on use"/>       <definition value="A copyright statement relating to the naming system and/or its contents. Copyright

       statements are notices of intellectual property ownership and can include restrictions
       on the use and publishing of the naming system."/> 
      <requirements value="Consumers must be able to determine any legal restrictions on the use of the naming

       system and/or its content."/> 
      <alias value="License"/>       <alias value="Restrictions"/>       <min value="0"/>       <max value="1"/>       <base>         <path value="NamingSystem.copyright"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="markdown"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>       <mapping>         <identity value="objimpl"/>         <map value="no-gen-base"/>       </mapping>     </element>     <element id="NamingSystem.copyrightLabel">      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">        <valueBoolean value="true"/>       </extension>       <path value="NamingSystem.copyrightLabel"/>       <short value="Copyright holder and year(s)"/>       <definition value="A short string (&lt;50 characters), suitable for inclusion in a page footer that

       identifies the copyright holder, effective period, and optionally whether rights
       are restricted. (e.g. 'All rights reserved', 'Some rights reserved')."/> 
      <comment value="The copyright symbol and the '(c)' textual representation SHOULD NOT be included

       in this string. It will be added by software when rendering the notation. Full
       details about licensing, restrictions, warrantees, etc. goes in the more general
       'copyright' element."/> 
      <requirements value="Defines the content expected to be rendered in all representations of the artifact."/>       <min value="0"/>       <max value="1"/>       <base>         <path value="NamingSystem.copyrightLabel"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="string"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="NamingSystem.approvalDate">      <path value="NamingSystem.approvalDate"/>       <short value="When the NamingSystem was approved by publisher"/>       <definition value="The date on which the resource content was approved by the publisher. Approval

       happens once when the content is officially approved for usage."/> 
      <comment value="The 'date' element may be more recent than the approval date because of minor changes

       or editorial corrections.
See guidance around (not) making local changes to elements [here](canonicalresource.html#loca
      lization)."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="NamingSystem.approvalDate"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="date"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>       <mapping>         <identity value="objimpl"/>         <map value="no-gen-base"/>       </mapping>     </element>     <element id="NamingSystem.lastReviewDate">      <path value="NamingSystem.lastReviewDate"/>       <short value="When the NamingSystem was last reviewed by the publisher"/>       <definition value="The date on which the resource content was last reviewed. Review happens periodically

       after approval but does not change the original approval date."/> 
      <comment value="If specified, this date follows the original approval date.
See guidance around (not) making local changes to elements [here](canonicalresource.html#loca
      lization)."/> 
      <requirements value="Gives a sense of how &quot;current&quot; the content is.  Resources that have not

       been reviewed in a long time may have a risk of being less appropriate/relevant."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="NamingSystem.lastReviewDate"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="date"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>       <mapping>         <identity value="objimpl"/>         <map value="no-gen-base"/>       </mapping>     </element>     <element id="NamingSystem.effectivePeriod">      <path value="NamingSystem.effectivePeriod"/>       <short value="When the NamingSystem is expected to be used"/>       <definition value="The period during which the NamingSystem content was or is planned to be in active

       use."/> 
      <comment value="The effective period for a NamingSystem determines when the content is applicable

       for usage and is independent of publication and review dates. For example, a NamingSystem
       intended to be used for the year 2016 might be published in 2015.
See guidance around (not) making local changes to elements [here](canonicalresource.html#loca
      lization)."/> 
      <requirements value="Allows establishing a transition before a resource comes into effect and also allows

       for a sunsetting process when new versions of the NamingSystem are or are expected
       to be used instead."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="NamingSystem.effectivePeriod"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="Period"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <mapping>         <identity value="objimpl"/>         <map value="no-gen-base"/>       </mapping>     </element>     <element id="NamingSystem.topic">      <path value="NamingSystem.topic"/>       <short value="E.g. Education, Treatment, Assessment, etc"/>       <definition value="Descriptions related to the content of the NamingSystem. Topics provide a high-level

       categorization as well as keywords for the NamingSystem that can be useful for
       filtering and searching."/> 
      <comment value="DEPRECATION NOTE: For consistency, implementations are encouraged to migrate to

       using the new 'topic' code in the useContext element.  (I.e. useContext.code indicating
       http://terminology.hl7.org/CodeSystem/usage-context-type#topic and useContext.valueCodeableCo
      ncept indicating the topic)"/> 
      <requirements value="Repositories must be able to determine how to categorize the NamingSystem so that

       it can be found by topical and keyword searches."/> 
      <min value="0"/>       <max value="*"/>       <base>         <path value="NamingSystem.topic"/>         <min value="0"/>         <max value="*"/>       </base>       <type>         <code value="CodeableConcept"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>       <binding>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">          <valueString value="DefinitionTopic"/>         </extension>         <strength value="example"/>         <valueSet value="http://hl7.org/fhir/ValueSet/definition-topic"/>       </binding>     </element>     <element id="NamingSystem.author">      <path value="NamingSystem.author"/>       <short value="Who authored the CodeSystem"/>       <definition value="An individiual or organization primarily involved in the creation and maintenance

       of the NamingSystem."/> 
      <min value="0"/>       <max value="*"/>       <base>         <path value="NamingSystem.author"/>         <min value="0"/>         <max value="*"/>       </base>       <type>         <code value="ContactDetail"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="NamingSystem.editor">      <path value="NamingSystem.editor"/>       <short value="Who edited the NamingSystem"/>       <definition value="An individual or organization primarily responsible for internal coherence of the

       NamingSystem."/> 
      <min value="0"/>       <max value="*"/>       <base>         <path value="NamingSystem.editor"/>         <min value="0"/>         <max value="*"/>       </base>       <type>         <code value="ContactDetail"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="NamingSystem.reviewer">      <path value="NamingSystem.reviewer"/>       <short value="Who reviewed the NamingSystem"/>       <definition value="An individual or organization asserted by the publisher to be primarily responsible

       for review of some aspect of the NamingSystem."/> 
      <comment value="See guidance around (not) making local changes to elements [here](canonicalresource.html#loca

      lization)."/> 
      <min value="0"/>       <max value="*"/>       <base>         <path value="NamingSystem.reviewer"/>         <min value="0"/>         <max value="*"/>       </base>       <type>         <code value="ContactDetail"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="NamingSystem.endorser">      <path value="NamingSystem.endorser"/>       <short value="Who endorsed the NamingSystem"/>       <definition value="An individual or organization asserted by the publisher to be responsible for officially

       endorsing the NamingSystem for use in some setting."/> 
      <comment value="See guidance around (not) making local changes to elements [here](canonicalresource.html#loca

      lization)."/> 
      <min value="0"/>       <max value="*"/>       <base>         <path value="NamingSystem.endorser"/>         <min value="0"/>         <max value="*"/>       </base>       <type>         <code value="ContactDetail"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="NamingSystem.relatedArtifact">      <path value="NamingSystem.relatedArtifact"/>       <short value="Additional documentation, citations, etc"/>       <definition value="Related artifacts such as additional documentation, justification, dependencies,

       bibliographic references, and predecessor and successor artifacts. If the type
       is `successor` or `predecessor`, the related resource must be a NamingSystem."/> 
      <comment value="Each related artifact is either an attachment, or a reference to another resource,

       but not both."/> 
      <requirements value="A NamingSystem must be able to provide enough information for consumers of the

       content (and/or interventions or results produced by the content) to be able to
       determine and understand the justification for and evidence in support of the content."/> 
      <min value="0"/>       <max value="*"/>       <base>         <path value="NamingSystem.relatedArtifact"/>         <min value="0"/>         <max value="*"/>       </base>       <type>         <code value="RelatedArtifact"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <constraint>         <key value="nsd-4"/>         <severity value="error"/>         <human value="Related artifact can't be depends-on or composed-of"/>         <expression value="(type in ('depends-on' | 'composed-of')).not()"/>         <source value="http://hl7.org/fhir/StructureDefinition/NamingSystem"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="NamingSystem.usage">      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">        <valueBoolean value="true"/>       </extension>       <path value="NamingSystem.usage"/>       <short value="How/where is it used"/>       <definition value="Provides guidance on the use of the namespace, including the handling of formatting

       characters, use of upper vs. lower case, etc."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="NamingSystem.usage"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="string"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="NamingSystem.uniqueId">      <path value="NamingSystem.uniqueId"/>       <short value="Unique identifiers used for system"/>       <definition value="Indicates how the system may be identified when referenced in electronic exchange."/>       <comment value="Multiple identifiers may exist, either due to duplicate registration, regional

       rules, needs of different communication technologies, etc."/> 
      <min value="1"/>       <max value="*"/>       <base>         <path value="NamingSystem.uniqueId"/>         <min value="1"/>         <max value="*"/>       </base>       <type>         <code value="BackboneElement"/>       </type>       <condition value="nsd-1"/>       <condition value="nsd-2"/>       <condition value="nsd-3"/>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children or both"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>     </element>     <element id="NamingSystem.uniqueId.id">      <path value="NamingSystem.uniqueId.id"/>       <representation value="xmlAttr"/>       <short value="Unique id for inter-element referencing"/>       <definition value="Unique id for the element within a resource (for internal references). This may

       be any string value that does not contain spaces."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="Element.id"/>         <min value="0"/>         <max value="1"/>       </base>       <!--  Note: special primitive values have a FHIRPath system type. e.g. this is compiler

       magic (j)  -->
      <type>         <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">          <valueUrl value="string"/>         </extension>         <code value="http://hl7.org/fhirpath/System.String"/>       </type>       <condition value="ele-1"/>       <isModifier value="false"/>       <isSummary value="false"/>       <mapping>         <identity value="rim"/>         <map value="n/a"/>       </mapping>     </element>     <element id="NamingSystem.uniqueId.extension">      <path value="NamingSystem.uniqueId.extension"/>       <short value="Additional content defined by implementations"/> 
      <definition value="May be used to represent additional information that is not part of the basic definition
       of the element. In order to make the use of extensions safe and manageable, there is a
       strict set of governance  applied to the definition and use of extensions. Though any
       implementer is allowed to define an extension, there is a set of requirements that SHALL
       be met as part of the definition of the extension.
      There can be no stigma associated with the use of extensions by any application, project,
       or standard - regardless of the institution or jurisdiction that uses or defines the extensions.
        The use of extensions is what allows the FHIR specification to retain a core level of
       simplicity for everyone.
      
      
      
      
      
        
        
        
      
      
        
      
      
        
        
      
    
    
      
      

       of the element. To make the use of extensions safe and managable, there is a strict
       set of governance applied to the definition and use of extensions. Though any implementer
       can define an extension, there is a set of requirements that SHALL be met as part
       of the definition of the extension."/> 
      <comment value="There can be no stigma associated with the use of extensions by any application,

       project, or standard - regardless of the institution or jurisdiction that uses
       or defines the extensions.  The use of extensions is what allows the FHIR specification
       to retain a core level of simplicity for everyone."/> 
      <alias value="extensions"/>       <alias value="user content"/>       <min value="0"/>       <max value="*"/>       <base>         <path value="Element.extension"/>         <min value="0"/>         <max value="*"/>       </base>       <type>         <code value="Extension"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <isModifier value="false"/>       <isSummary value="false"/>       <mapping>         <identity value="rim"/>         <map value="n/a"/>       </mapping>     </element>     <element id="NamingSystem.uniqueId.modifierExtension">      <path value="NamingSystem.uniqueId.modifierExtension"/>       <short value="Extensions that cannot be ignored even if unrecognized"/> 
      <definition value="May be used to represent additional information that is not part of the basic definition
       of the element, and that modifies the understanding of the element that contains it. Usually
       modifier elements provide negation or qualification. In order to make the use of extensions
       safe and manageable, there is a strict set of governance applied to the definition and
       use of extensions. Though any implementer is allowed to define an extension, there is
       a set of requirements that SHALL be met as part of the definition of the extension. Applications
       processing a resource are required to check for modifier extensions.
      There can be no stigma associated with the use of extensions by any application, project,
       or standard - regardless of the institution or jurisdiction that uses or defines the extensions.
        The use of extensions is what allows the FHIR specification to retain a core level of
       simplicity for everyone.
      
      
      
      
      
      
        
        
        
      
      
        
      
      
      
      
        
        
      
    
    
      
      
      
      Different identifier types may be used in different types of communications (OIDs for
       v3, URIs for FHIR, etc.).  Other includes RUIDs from v3, standard v2 code name strings,
       etc.
      
      
      
        
      
      
        
          
        
        
        
        
          
        
      
    
    
      
      

       of the element and that modifies the understanding of the element in which it is
       contained and/or the understanding of the containing element's descendants. Usually
       modifier elements provide negation or qualification. To make the use of extensions
       safe and managable, there is a strict set of governance applied to the definition
       and use of extensions. Though any implementer can define an extension, there is
       a set of requirements that SHALL be met as part of the definition of the extension.
       Applications processing a resource are required to check for modifier extensions.
Modifier extensions SHALL NOT change the meaning of any elements on Resource or
       DomainResource (including cannot change the meaning of modifierExtension itself)."/> 
      <comment value="There can be no stigma associated with the use of extensions by any application,

       project, or standard - regardless of the institution or jurisdiction that uses
       or defines the extensions.  The use of extensions is what allows the FHIR specification
       to retain a core level of simplicity for everyone."/> 
      <requirements value="Modifier extensions allow for extensions that *cannot* be safely ignored to be

       clearly distinguished from the vast majority of extensions which can be safely
       ignored.  This promotes interoperability by eliminating the need for implementers
       to prohibit the presence of extensions. For further information, see the [definition
       of modifier extensions](extensibility.html#modifierExtension)."/> 
      <alias value="extensions"/>       <alias value="user content"/>       <alias value="modifiers"/>       <min value="0"/>       <max value="*"/>       <base>         <path value="BackboneElement.modifierExtension"/>         <min value="0"/>         <max value="*"/>       </base>       <type>         <code value="Extension"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <isModifier value="true"/>       <isModifierReason value="Modifier extensions are expected to modify the meaning or interpretation of the

       element that contains them"/> 
      <isSummary value="true"/>       <mapping>         <identity value="rim"/>         <map value="N/A"/>       </mapping>     </element>     <element id="NamingSystem.uniqueId.type">      <path value="NamingSystem.uniqueId.type"/>       <short value="oid | uuid | uri | iri-stem | v2csmnemonic | other"/>       <definition value="Identifies the unique identifier scheme used for this particular identifier."/>       <comment value="Different identifier types may be used in different types of communications (OIDs

       for v3, URIs for FHIR, etc.).  Other includes RUIDs from v3, standard v2 code name
       strings, etc. Preferred identifiers for the same identifier type SHOULD NOT overlap
       by period."/> 
      <min value="1"/>       <max value="1"/>       <base>         <path value="NamingSystem.uniqueId.type"/>         <min value="1"/>         <max value="1"/>       </base>       <type>         <code value="code"/>       </type>       <condition value="nsd-1"/>       <condition value="nsd-2"/>       <condition value="nsd-3"/>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <binding>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">          <valueString value="NamingSystemIdentifierType"/>         </extension>         <strength value="required"/>         <description value="Identifies the style of unique identifier used to identify a namespace."/>         <valueSet value="http://hl7.org/fhir/ValueSet/namingsystem-identifier-type|6.0.0-ballot3"/>       </binding>     </element>     <element id="NamingSystem.uniqueId.value">      <path value="NamingSystem.uniqueId.value"/>       <short value="The unique identifier"/> 
      <definition value="The string that should be sent over the wire to identify the code system or identifier
       system.
      If the value is a URI intended for use as FHIR system identifier, the URI should not contain
       &quot;\&quot; or &quot;?&quot; or &quot;,&quot; since this makes escaping very difficult.
      
      
      
        
      
      
        
        
      
    
    
      
      
      
      
      
      
        
      

       system."/> 
      <comment value="If the value is a URI intended for use as FHIR system identifier, the URI should

       not contain &quot;\&quot; or &quot;?&quot; or &quot;,&quot; since this makes escaping
       very difficult."/> 
      <min value="1"/>       <max value="1"/>       <base>         <path value="NamingSystem.uniqueId.value"/>         <min value="1"/>         <max value="1"/>       </base>       <type>         <code value="string"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <mapping>         <identity value="w5"/>         <map value="FiveWs.identifier"/>       </mapping>     </element>     <element id="NamingSystem.uniqueId.preferred">      <path value="NamingSystem.uniqueId.preferred"/>       <short value="Is this the id that should be used for this type"/>       <definition value="Indicates whether this identifier is the &quot;preferred&quot; identifier of this

       type."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="NamingSystem.uniqueId.preferred"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="boolean"/>       </type> 
      <meaningWhenMissing value="If there are multiple ids, and one is labeled &quot;preferred&quot;, then the assumption
       is that the others are not preferred. In the absence of any id marked as preferred, no
       inference can be drawn
    
    
      
      
      
      e.g. &quot;must be used in Germany&quot; or &quot;was initially published in error with
       this value&quot;.
      
      
      
        
      
    
    
      
      
      Identifies the period of time over which this identifier is considered appropriate to
       refer to the naming system.  Outside of this window, the identifier might be non-deterministic.
      Within a registry, a given identifier should only be &quot;active&quot; for a single namespace
       at a time.  (Ideally, an identifier should only ever be associated with a single namespace
       across all time).
      
      
      
        
      
    
    
      
      
      For naming systems that are retired, indicates the naming system that should be used in
       their place (if any).
      
      
      
        
        
      
      
    
  
  
    
      
      

       is that the others are not preferred. In the absence of any id marked as preferred,
       no inference can be drawn"/> 
      <condition value="nsd-2"/>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="NamingSystem.uniqueId.comment">      <path value="NamingSystem.uniqueId.comment"/>       <short value="Notes about identifier usage"/>       <definition value="Notes about the past or intended usage of this identifier."/>       <comment value="e.g. &quot;must be used in Germany&quot; or &quot;was initially published in error

       with this value&quot;."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="NamingSystem.uniqueId.comment"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="string"/>       </type>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="NamingSystem.uniqueId.period">      <path value="NamingSystem.uniqueId.period"/>       <short value="When is identifier valid?"/>       <definition value="Identifies the period of time over which this identifier is considered appropriate

       to refer to the naming system.  Outside of this window, the identifier might be
       non-deterministic."/> 
      <comment value="Within a registry, a given identifier should only be &quot;active&quot; for a single

       namespace at a time.  (Ideally, an identifier should only ever be associated with
       a single namespace across all time).
The nuance of identifier deprecation is not represented with a separate element.
       When a determination is made that an identifier should not be used, the validity
       period end date is updated with the date the identifier is deemed to be deprecated.
       The identifier should no longer be used once the period end date is reached."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="NamingSystem.uniqueId.period"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="Period"/>       </type>       <condition value="nsd-3"/>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="NamingSystem.uniqueId.authoritative">      <path value="NamingSystem.uniqueId.authoritative"/>       <short value="Whether the identifier is authoritative"/>       <definition value="Indicates whether this identifier ie endorsed by the official owner of the associated

       naming system."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="NamingSystem.uniqueId.authoritative"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="boolean"/>       </type>       <condition value="nsd-3"/>       <constraint>         <key value="ele-1"/>         <severity value="error"/>         <human value="All FHIR elements must have a @value or children"/>         <expression value="hasValue() or (children().count() &gt; id.count())"/>         <source value="http://hl7.org/fhir/StructureDefinition/Element"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>   </snapshot>   <differential>     <element id="NamingSystem">      <path value="NamingSystem"/>       <short value="System of unique identification"/> 
      <definition value="A curated namespace that issues unique symbols within that namespace for the identification
       of concepts, people, devices, etc.  Represents a &quot;System&quot; used within the Identifier
       and Coding data types.
      
      
      
        
        
        
        
        
      
      
        
        
        
        
        
      
      
        
        
        
        
        not(exists(for $type in distinct-values(f:uniqueId/f:type/@value) return if (count(f:uniqueId[f:type
        /@value=$type and f:preferred/@value=true()])&gt;1) then $type else ()))
      
      
        
        
      
      
        
        
      
      
        
        
      
    
    
      
      
      A natural language name identifying the naming system. This name should be usable as an
       identifier for the module by machine processing applications such as code generation.
      The name is not expected to be globally unique. The name should be a simple alpha-numeric
       type name to ensure that it is computable friendly. The&quot;symbolic name&quot; for an
       OID would be captured as an extension.
      
      
      
      
        
      
      
    
    
      
      
      
      Allows filtering of naming systems that are appropriate for use vs. not.  
This is labeled as &quot;Is Modifier&quot; because applications should not use a retired
       naming system without due consideration.
      
      
      
        
      
      
      
      
        
          
        
        
          
        
        
        
        
          
        
      
      
        
        
      
    
    
      
      
      
      
      
      
        
      
      
        
          
        
        
        
        
          
        
      
      
        
        
      
    
    
      
      
      The date  (and optionally time) when the naming system was published. The date must change
       if and when the business version changes and it must change if the status code changes.
       In addition, it should change when the substantive content of the naming system changes.
      Note that this is not the same as the resource last-modified-date, since the resource
       may be a secondary representation of the naming system. Additional specific dates may
       be added as extensions or be found by consulting Provenances associated with past versions
       of the resource.
      
      
      
      
        
      
      
      
        
        
      
    
    
      
      
      
      Usually an organization, but may be an individual. The publisher (or steward) of the naming
       system is the organization or individual primarily responsible for the maintenance and
       upkeep of the naming system. This is not necessarily the same individual or organization
       that developed and initially authored the content. The publisher is the primary point
       of contact for questions or issues with the naming system. This item SHOULD be populated
       unless the information is available from context.
      Helps establish the &quot;authority/credibility&quot; of the naming system.  May also
       allow for contact.
      
      
      
        
      
      
      
        
        
      
    
    
      
      
      
      
      
      
      
        
      
      
    
    
      
      
      The name of the organization that is responsible for issuing identifiers or codes for
       this namespace and ensuring their non-collision.
      This is the primary organization.  Responsibility for some aspects of a namespace may
       be delegated.
      
      
      
        
      
      
        
        
      
    
    
      
      
      
      This will most commonly be used for identifier namespaces, but categories could potentially
       be useful for code systems and authorities as well.
      
      
      
        
      
      
        
          
        
        
          
        
        
        A coded type for an identifier that can be used to determine which identifier to use for
         a specific purpose.
        
          
        
      
    
    
      
      
      A free text natural language description of the naming system from a consumer's perspective.
       Details about what the namespace identifies including scope, granularity, version labeling,
       etc.
      This description can be used to capture details such as why the naming system was built,
       comments about misuse, instructions for clinical use and interpretation, literature references,
       examples from the paper world, etc. It is not a rendering of the naming system as conveyed
       in the 'text' field of the resource itself. This item SHOULD be populated unless the information
       is available from context (e.g. the language of the profile is presumed to be the predominant
       language in the place the profile was created).
      
      
      
        
      
    
    
      
      
      The content was developed with a focus and intent of supporting the contexts that are
       listed. These terms may be used to assist with indexing and searching for appropriate
       naming system instances.
      When multiple useContexts are specified, there is no expectation whether all or any of
       the contexts apply.
      
      
      
      
        
      
      
    
    
      
      
      
      It may be possible for the naming system to be used in jurisdictions other than those
       for which it was originally designed or intended.
      
      
      
        
      
      
      
        
          
        
        
          
        
        
        
        
          
        
      
    
    
      
      
      Provides guidance on the use of the namespace, including the handling of formatting characters,
       use of upper vs. lower case, etc.
      
      
      
        
      
    
    
      
      
      
      Multiple identifiers may exist, either due to duplicate registration, regional rules,
       needs of different communication technologies, etc.
      
      
      
        
      
    
    
      
      
      
      Different identifier types may be used in different types of communications (OIDs for
       v3, URIs for FHIR, etc.).  Other includes RUIDs from v3, standard v2 code name strings,
       etc.
      
      
      
        
      
      
        
          
        
        
        
        
          
        
      
    
    
      
      

       of concepts, people, devices, etc.  Represents a &quot;System&quot; used within
       the Identifier and Coding data types."/> 
      <min value="0"/>       <max value="*"/>       <constraint>         <key value="nsd-1"/>         <severity value="error"/>         <human value="Root systems cannot have uuid identifiers"/>         <expression value="kind != 'root' or uniqueId.all(type != 'uuid')"/>         <source value="http://hl7.org/fhir/StructureDefinition/NamingSystem"/>       </constraint>       <constraint>         <key value="cnl-0"/>         <severity value="warning"/>         <human value="Name should be usable as an identifier for the module by machine processing applications

         such as code generation"/> 
        <expression value="name.exists() implies name.matches('^[A-Z]([A-Za-z0-9_]){1,254}$')"/>         <source value="http://hl7.org/fhir/StructureDefinition/NamingSystem"/>       </constraint>       <constraint>         <key value="nsd-3"/>         <severity value="error"/>         <human value="Can't have more than one authoritative identifier for a type/period combination

         (only one authoritative identifier allowed at any given point of time)"/> 
        <expression value="uniqueId.where(authoritative = true).select(type.toString() &amp; period.start.toString()

         &amp; period.end.toString()).isDistinct()"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/NamingSystem"/>       </constraint>       <constraint>         <key value="nsd-2"/>         <severity value="error"/>         <human value="Can't have more than one preferred identifier for a type"/>         <expression value="uniqueId.where(preferred = true).select(type).isDistinct()"/>         <source value="http://hl7.org/fhir/StructureDefinition/NamingSystem"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <mapping>         <identity value="w5"/>         <map value="conformance.terminology"/>       </mapping>       <mapping>         <identity value="v2"/>         <map value="N/A"/>       </mapping>       <mapping>         <identity value="rim"/>         <map value="N/A"/>       </mapping>     </element>     <element id="NamingSystem.url">      <path value="NamingSystem.url"/>       <short value="Canonical identifier for this naming system, represented as a URI (globally unique)"/>       <definition value="An absolute URI that is used to identify this naming system when it is referenced

       in a specification, model, design or an instance; also called its canonical identifier.
       This SHOULD be globally unique and SHOULD be a literal address at which an authoritative
       instance of this naming system is (or will be) published. This URL can be the target
       of a canonical reference. It SHALL remain the same when the naming system is stored
       on different servers."/> 
      <comment value="Can be a urn:uuid: or a urn:oid: but real http: addresses are preferred.  Multiple

       instances may share the same URL if they have a distinct version.
The determination of when to create a new version of a resource (same url, new
       version) vs. defining a new artifact is up to the author.  Considerations for making
       this decision are found in [Technical and Business Versions](resource.html#versions).
       
In some cases, the resource can no longer be found at the stated url, but the url
       itself cannot change. Implementations can use the [meta.source](resource.html#meta)
       element to indicate where the current master source of the resource can be found."/> 
      <requirements value="Allows the naming system to be referenced by a single globally unique identifier."/>       <min value="0"/>       <max value="1"/>       <type>         <code value="uri"/>       </type>       <constraint>         <key value="cnl-1"/>         <severity value="warning"/>         <human value="URL should not contain | or # - these characters make processing canonical references

         problematic"/> 
        <expression value="exists() implies matches('^[^|# ]+$')"/>         <source value="http://hl7.org/fhir/StructureDefinition/NamingSystem"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <mapping>         <identity value="w5"/>         <map value="FiveWs.identifier"/>       </mapping>     </element>     <element id="NamingSystem.identifier">      <path value="NamingSystem.identifier"/>       <short value="Additional identifier for the naming system (business identifier)"/>       <definition value="A formal identifier that is used to identify this naming system when it is represented

       in other formats, or referenced in a specification, model, design or an instance."/> 
      <requirements value="Allows externally provided and/or usable business identifiers to be easily associated

       with the naming system."/> 
      <min value="0"/>       <max value="*"/>       <type>         <code value="Identifier"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <mapping>         <identity value="w5"/>         <map value="FiveWs.identifier"/>       </mapping>       <mapping>         <identity value="objimpl"/>         <map value="no-gen-base"/>       </mapping>     </element>     <element id="NamingSystem.version">      <path value="NamingSystem.version"/>       <short value="Business version of the naming system"/>       <definition value="The identifier that is used to identify this version of the naming system when

       it is referenced in a specification, model, design or instance. This is an arbitrary
       value managed by the naming system author and is not expected to be globally unique.
       For example, it might be a timestamp (e.g. yyyymmdd) if a managed version is not
       available. There is also no expectation that versions can be placed in a lexicographical
       sequence."/> 
      <comment value="There may be different naming system instances that have the same identifier but

       different versions.  The version can be appended to the url in a reference to allow
       a reference to a particular business version of the naming system with the format
       [url]|[version]. The version SHOULD NOT contain a '#' - see [Business Version](resource.html#
      bv-format)."/> 
      <min value="0"/>       <max value="1"/>       <type>         <code value="string"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <mapping>         <identity value="w5"/>         <map value="FiveWs.version"/>       </mapping>     </element>     <element id="NamingSystem.versionAlgorithm[x]">      <path value="NamingSystem.versionAlgorithm[x]"/>       <short value="How to compare versions"/>       <definition value="Indicates the mechanism used to compare versions to determine which NamingSystem

       is more current."/> 
      <comment value="If set as a string, this is a FHIRPath expression that has two additional context

       variables passed in - %version1 and %version2 and will return a negative number
       if version1 is newer, a positive number if version2 and a 0 if the version ordering
       can't be successfully be determined."/> 
      <min value="0"/>       <max value="1"/>       <type>         <code value="string"/>       </type>       <type>         <code value="Coding"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <binding>         <strength value="extensible"/>         <valueSet value="http://hl7.org/fhir/ValueSet/version-algorithm"/>       </binding>     </element>     <element id="NamingSystem.name">      <path value="NamingSystem.name"/>       <short value="Name for this naming system (computer friendly)"/>       <definition value="A natural language name identifying the naming system. This name should be usable

       as an identifier for the module by machine processing applications such as code
       generation."/> 
      <comment value="The name is not expected to be globally unique. The name should be a simple alphanumeric

       type name to ensure that it is machine-processing friendly.The&quot;symbolic name&quot;
       for an OID would be captured as an extension."/> 
      <requirements value="Support human navigation and code generation."/>       <min value="1"/>       <max value="1"/>       <type>         <code value="string"/>       </type>       <condition value="cnl-0"/>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>     </element>     <element id="NamingSystem.title">      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">        <valueBoolean value="true"/>       </extension>       <path value="NamingSystem.title"/>       <short value="Title for this naming system (human friendly)"/>       <definition value="A short, descriptive, user-friendly title for the naming system."/>       <comment value="This title does not need to be machine-processing friendly and may contain punctuation,

       white-space, etc."/> 
      <min value="0"/>       <max value="1"/>       <type>         <code value="string"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>     </element>     <element id="NamingSystem.status">      <path value="NamingSystem.status"/>       <short value="draft | active | retired | unknown"/>       <definition value="The status of this naming system. Enables tracking the life-cycle of the content."/>       <comment value="Allows filtering of naming systems that are appropriate for use versus not.
See guidance around (not) making local changes to elements [here](canonicalresource.html#loca
      lization)."/> 
      <min value="1"/>       <max value="1"/>       <type>         <code value="code"/>       </type>       <mustSupport value="false"/>       <isModifier value="true"/>       <isModifierReason value="This is labeled as &quot;Is Modifier&quot; because applications should not use

       a retired {{title}} without due consideration"/> 
      <isSummary value="true"/>       <binding>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">          <valueString value="PublicationStatus"/>         </extension>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">          <valueBoolean value="true"/>         </extension>         <strength value="required"/>         <description value="The lifecycle status of an artifact."/>         <valueSet value="http://hl7.org/fhir/ValueSet/publication-status|6.0.0-ballot3"/>       </binding>       <mapping>         <identity value="w5"/>         <map value="FiveWs.status"/>       </mapping>     </element>     <element id="NamingSystem.kind">      <path value="NamingSystem.kind"/>       <short value="codesystem | identifier | root"/>       <definition value="Indicates the purpose for the naming system - what kinds of things does it make

       unique?"/> 
      <min value="1"/>       <max value="1"/>       <type>         <code value="code"/>       </type>       <condition value="nsd-1"/>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <binding>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">          <valueString value="NamingSystemType"/>         </extension>         <strength value="required"/>         <description value="Identifies the purpose of the naming system."/>         <valueSet value="http://hl7.org/fhir/ValueSet/namingsystem-type|6.0.0-ballot3"/>       </binding>       <mapping>         <identity value="w5"/>         <map value="FiveWs.class"/>       </mapping>     </element>     <element id="NamingSystem.experimental">      <path value="NamingSystem.experimental"/>       <short value="For testing only - never for real usage"/>       <definition value="A Boolean value to indicate that this naming system is authored for testing purposes

       (or education/evaluation/marketing) and no version of this resource will ever be
       intended for genuine usage."/> 
      <comment value="Allows filtering of naming systems that are appropriate for use versus not. Experimental

       resources might include example instances in implementation guides, instances created
       solely for testing purposes, etc. If experimental is 'true' for any version of
       a resource, it should be true for all versions of the resource.  (If experimental
       changes, then it is being misused or a resource that was never intended for real-world
       use has unexpectedly changed its purpose.).
Experimental resources are not expected to be stable and may well have breaking
       changes without a corresponding change to the 'version' element."/> 
      <requirements value="Enables experimental content to be developed following the same lifecycle that

       would be used for a production-level naming system."/> 
      <min value="0"/>       <max value="1"/>       <type>         <code value="boolean"/>       </type>       <meaningWhenMissing value="If absent, this resource is treated as though it is not experimental."/>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <mapping>         <identity value="w5"/>         <map value="FiveWs.class"/>       </mapping>     </element>     <element id="NamingSystem.date">      <path value="NamingSystem.date"/>       <short value="Date last changed"/>       <definition value="The date  (and optionally time) when the naming system was last significantly changed.

       The date must change when the business version changes and it must change if the
       status code changes. In addition, it should change when the substantive content
       of the naming system changes."/> 
      <comment value="The date is often not tracked until the resource is published, but may be present

       on draft content. Note that this is not the same as the resource last-modified-date,
       since the resource may be a secondary representation of the naming system. Additional
       specific dates may be added as extensions or be found by consulting Provenances
       associated with past versions of the resource.
See guidance around (not) making local changes to elements [here](canonicalresource.html#loca
      lization)."/> 
      <alias value="Revision Date"/>       <min value="1"/>       <max value="1"/>       <type>         <code value="dateTime"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <mapping>         <identity value="w5"/>         <map value="FiveWs.recorded"/>       </mapping>     </element>     <element id="NamingSystem.publisher">      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">        <valueBoolean value="true"/>       </extension>       <path value="NamingSystem.publisher"/>       <short value="Name of the publisher/steward (organization or individual)"/>       <definition value="The name of the organization or individual responsible for the release and ongoing

       maintenance of the naming system."/> 
      <comment value="Usually an organization but may be an individual. The publisher (or steward) of

       the naming system is the organization or individual primarily responsible for the
       maintenance and upkeep of the naming system. This is not necessarily the same individual
       or organization that developed and initially authored the content. The publisher
       is the primary point of contact for questions or issues with the naming system.
       This item SHOULD be populated unless the information is available from context."/> 
      <requirements value="Helps establish the &quot;authority/credibility&quot; of the naming system.  May

       also allow for contact."/> 
      <min value="0"/>       <max value="1"/>       <type>         <code value="string"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <mapping>         <identity value="w5"/>         <map value="FiveWs.witness"/>       </mapping>     </element>     <element id="NamingSystem.contact">      <path value="NamingSystem.contact"/>       <short value="Contact details for the publisher"/>       <definition value="Contact details to assist a user in finding and communicating with the publisher."/>       <comment value="May be a web site, an email address, a telephone number, etc.
See guidance around (not) making local changes to elements [here](canonicalresource.html#loca
      lization)."/> 
      <min value="0"/>       <max value="*"/>       <type>         <code value="ContactDetail"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>     </element>     <element id="NamingSystem.responsible">      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">        <valueBoolean value="true"/>       </extension>       <path value="NamingSystem.responsible"/>       <short value="Who maintains system namespace?"/>       <definition value="The name of the organization that is responsible for issuing identifiers or codes

       for this namespace and ensuring their non-collision."/> 
      <comment value="This is the primary organization.  Responsibility for some aspects of a namespace

       may be delegated."/> 
      <min value="0"/>       <max value="1"/>       <type>         <code value="string"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>       <mapping>         <identity value="w5"/>         <map value="FiveWs.witness"/>       </mapping>     </element>     <element id="NamingSystem.type">      <path value="NamingSystem.type"/>       <short value="e.g. driver,  provider,  patient, bank etc"/>       <definition value="Categorizes a naming system for easier search by grouping related naming systems."/>       <comment value="This will most commonly be used for identifier namespaces, but categories could

       potentially be useful for code systems and authorities as well."/> 
      <min value="0"/>       <max value="1"/>       <type>         <code value="CodeableConcept"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>       <binding>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">          <valueString value="NamingSystemIdentifierSystemType"/>         </extension>         <strength value="preferred"/>         <description value="A coded type for an identifier that can be used to determine which identifier to

         use for a specific purpose."/> 
        <valueSet value="http://hl7.org/fhir/ValueSet/namingsystem-identifier-system-type"/>       </binding>     </element>     <element id="NamingSystem.description">      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">        <valueBoolean value="true"/>       </extension>       <path value="NamingSystem.description"/>       <short value="Natural language description of the naming system"/>       <definition value="A free text natural language description of the naming system from a consumer's

       perspective. Details about what the namespace identifies including scope, granularity,
       version labeling, etc."/> 
      <comment value="This description can be used to capture details such as comments about misuse,

       instructions for clinical use and interpretation, literature references, examples
       from the paper world, etc. It is not a rendering of the naming system as conveyed
       in the 'text' field of the resource itself. This item SHOULD be populated unless
       the information is available from context (e.g. the language of the naming system
       is presumed to be the predominant language in the place the naming system was created)."/> 
      <min value="0"/>       <max value="1"/>       <type>         <code value="markdown"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="NamingSystem.useContext">      <path value="NamingSystem.useContext"/>       <short value="The context that the content is intended to support"/>       <definition value="The content was developed with a focus and intent of supporting the contexts that

       are listed. These contexts may be general categories (gender, age, ...) or may
       be references to specific programs (insurance plans, studies, ...) and may be used
       to assist with indexing and searching for appropriate naming system instances."/> 
      <comment value="When multiple useContexts are specified, there is no expectation that all or any

       of the contexts apply."/> 
      <requirements value="Assist in searching for appropriate content."/>       <min value="0"/>       <max value="*"/>       <type>         <code value="UsageContext"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>     </element>     <element id="NamingSystem.jurisdiction">      <path value="NamingSystem.jurisdiction"/>       <short value="Jurisdiction of the authority that maintains the naming system (if applicable)"/>       <definition value="A legal or geographic region in which the authority that maintains the resource

       is operating.  In general, the jurisdiction is also found in the useContext.  The
       useContext may reference additional jurisdictions because the defining jurisdiction
       does not necessarily limit the jurisdictions of use."/> 
      <comment value="It may be possible for the naming system to be used in jurisdictions other than

       those for which it was originally designed or intended.
DEPRECATION NOTE: For consistency, implementations are encouraged to migrate to
       using the new 'jurisdiction' code in the useContext element.  (I.e. useContext.code
       indicating http://terminology.hl7.org/CodeSystem/usage-context-type#jurisdiction
       and useContext.valueCodeableConcept indicating the jurisdiction.)"/> 
      <min value="0"/>       <max value="*"/>       <type>         <code value="CodeableConcept"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <binding>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">          <valueString value="Jurisdiction"/>         </extension>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">          <valueBoolean value="true"/>         </extension>         <strength value="extensible"/>         <description value="Countries and regions within which this artifact is targeted for use."/>         <valueSet value="http://terminology.hl7.org/ValueSet/jurisdiction"/>       </binding>     </element>     <element id="NamingSystem.purpose">      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">        <valueBoolean value="true"/>       </extension>       <path value="NamingSystem.purpose"/>       <short value="Why this naming system is defined"/>       <definition value="Explanation of why this naming system is needed and why it has been designed as

       it has."/> 
      <comment value="This element does not describe the usage of the code system. Instead, it provides

       traceability of ''why'' the resource is either needed or ''why'' it is defined
       as it is.  This may be used to point to source materials or specifications that
       drove the structure of this code system."/> 
      <min value="0"/>       <max value="1"/>       <type>         <code value="markdown"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>       <mapping>         <identity value="w5"/>         <map value="FiveWs.why[x]"/>       </mapping>       <mapping>         <identity value="objimpl"/>         <map value="no-gen-base"/>       </mapping>     </element>     <element id="NamingSystem.copyright">      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">        <valueBoolean value="true"/>       </extension>       <path value="NamingSystem.copyright"/>       <short value="Notice about intellectual property ownership, can include restrictions on use"/>       <definition value="A copyright statement relating to the naming system and/or its contents. Copyright

       statements are notices of intellectual property ownership and can include restrictions
       on the use and publishing of the naming system."/> 
      <requirements value="Consumers must be able to determine any legal restrictions on the use of the naming

       system and/or its content."/> 
      <alias value="License"/>       <alias value="Restrictions"/>       <min value="0"/>       <max value="1"/>       <type>         <code value="markdown"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>       <mapping>         <identity value="objimpl"/>         <map value="no-gen-base"/>       </mapping>     </element>     <element id="NamingSystem.copyrightLabel">      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">        <valueBoolean value="true"/>       </extension>       <path value="NamingSystem.copyrightLabel"/>       <short value="Copyright holder and year(s)"/>       <definition value="A short string (&lt;50 characters), suitable for inclusion in a page footer that

       identifies the copyright holder, effective period, and optionally whether rights
       are restricted. (e.g. 'All rights reserved', 'Some rights reserved')."/> 
      <comment value="The copyright symbol and the '(c)' textual representation SHOULD NOT be included

       in this string. It will be added by software when rendering the notation. Full
       details about licensing, restrictions, warrantees, etc. goes in the more general
       'copyright' element."/> 
      <requirements value="Defines the content expected to be rendered in all representations of the artifact."/>       <min value="0"/>       <max value="1"/>       <type>         <code value="string"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="NamingSystem.approvalDate">      <path value="NamingSystem.approvalDate"/>       <short value="When the NamingSystem was approved by publisher"/>       <definition value="The date on which the resource content was approved by the publisher. Approval

       happens once when the content is officially approved for usage."/> 
      <comment value="The 'date' element may be more recent than the approval date because of minor changes

       or editorial corrections.
See guidance around (not) making local changes to elements [here](canonicalresource.html#loca
      lization)."/> 
      <min value="0"/>       <max value="1"/>       <type>         <code value="date"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>       <mapping>         <identity value="objimpl"/>         <map value="no-gen-base"/>       </mapping>     </element>     <element id="NamingSystem.lastReviewDate">      <path value="NamingSystem.lastReviewDate"/>       <short value="When the NamingSystem was last reviewed by the publisher"/>       <definition value="The date on which the resource content was last reviewed. Review happens periodically

       after approval but does not change the original approval date."/> 
      <comment value="If specified, this date follows the original approval date.
See guidance around (not) making local changes to elements [here](canonicalresource.html#loca
      lization)."/> 
      <requirements value="Gives a sense of how &quot;current&quot; the content is.  Resources that have not

       been reviewed in a long time may have a risk of being less appropriate/relevant."/> 
      <min value="0"/>       <max value="1"/>       <type>         <code value="date"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>       <mapping>         <identity value="objimpl"/>         <map value="no-gen-base"/>       </mapping>     </element>     <element id="NamingSystem.effectivePeriod">      <path value="NamingSystem.effectivePeriod"/>       <short value="When the NamingSystem is expected to be used"/>       <definition value="The period during which the NamingSystem content was or is planned to be in active

       use."/> 
      <comment value="The effective period for a NamingSystem determines when the content is applicable

       for usage and is independent of publication and review dates. For example, a NamingSystem
       intended to be used for the year 2016 might be published in 2015.
See guidance around (not) making local changes to elements [here](canonicalresource.html#loca
      lization)."/> 
      <requirements value="Allows establishing a transition before a resource comes into effect and also allows

       for a sunsetting process when new versions of the NamingSystem are or are expected
       to be used instead."/> 
      <min value="0"/>       <max value="1"/>       <type>         <code value="Period"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <mapping>         <identity value="objimpl"/>         <map value="no-gen-base"/>       </mapping>     </element>     <element id="NamingSystem.topic">      <path value="NamingSystem.topic"/>       <short value="E.g. Education, Treatment, Assessment, etc"/>       <definition value="Descriptions related to the content of the NamingSystem. Topics provide a high-level

       categorization as well as keywords for the NamingSystem that can be useful for
       filtering and searching."/> 
      <comment value="DEPRECATION NOTE: For consistency, implementations are encouraged to migrate to

       using the new 'topic' code in the useContext element.  (I.e. useContext.code indicating
       http://terminology.hl7.org/CodeSystem/usage-context-type#topic and useContext.valueCodeableCo
      ncept indicating the topic)"/> 
      <requirements value="Repositories must be able to determine how to categorize the NamingSystem so that

       it can be found by topical and keyword searches."/> 
      <min value="0"/>       <max value="*"/>       <type>         <code value="CodeableConcept"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>       <binding>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">          <valueString value="DefinitionTopic"/>         </extension>         <strength value="example"/>         <valueSet value="http://hl7.org/fhir/ValueSet/definition-topic"/>       </binding>     </element>     <element id="NamingSystem.author">      <path value="NamingSystem.author"/>       <short value="Who authored the CodeSystem"/>       <definition value="An individiual or organization primarily involved in the creation and maintenance

       of the NamingSystem."/> 
      <min value="0"/>       <max value="*"/>       <type>         <code value="ContactDetail"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="NamingSystem.editor">      <path value="NamingSystem.editor"/>       <short value="Who edited the NamingSystem"/>       <definition value="An individual or organization primarily responsible for internal coherence of the

       NamingSystem."/> 
      <min value="0"/>       <max value="*"/>       <type>         <code value="ContactDetail"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="NamingSystem.reviewer">      <path value="NamingSystem.reviewer"/>       <short value="Who reviewed the NamingSystem"/>       <definition value="An individual or organization asserted by the publisher to be primarily responsible

       for review of some aspect of the NamingSystem."/> 
      <comment value="See guidance around (not) making local changes to elements [here](canonicalresource.html#loca

      lization)."/> 
      <min value="0"/>       <max value="*"/>       <type>         <code value="ContactDetail"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="NamingSystem.endorser">      <path value="NamingSystem.endorser"/>       <short value="Who endorsed the NamingSystem"/>       <definition value="An individual or organization asserted by the publisher to be responsible for officially

       endorsing the NamingSystem for use in some setting."/> 
      <comment value="See guidance around (not) making local changes to elements [here](canonicalresource.html#loca

      lization)."/> 
      <min value="0"/>       <max value="*"/>       <type>         <code value="ContactDetail"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="NamingSystem.relatedArtifact">      <path value="NamingSystem.relatedArtifact"/>       <short value="Additional documentation, citations, etc"/>       <definition value="Related artifacts such as additional documentation, justification, dependencies,

       bibliographic references, and predecessor and successor artifacts. If the type
       is `successor` or `predecessor`, the related resource must be a NamingSystem."/> 
      <comment value="Each related artifact is either an attachment, or a reference to another resource,

       but not both."/> 
      <requirements value="A NamingSystem must be able to provide enough information for consumers of the

       content (and/or interventions or results produced by the content) to be able to
       determine and understand the justification for and evidence in support of the content."/> 
      <min value="0"/>       <max value="*"/>       <type>         <code value="RelatedArtifact"/>       </type>       <constraint>         <key value="nsd-4"/>         <severity value="error"/>         <human value="Related artifact can't be depends-on or composed-of"/>         <expression value="(type in ('depends-on' | 'composed-of')).not()"/>         <source value="http://hl7.org/fhir/StructureDefinition/NamingSystem"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="NamingSystem.usage">      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">        <valueBoolean value="true"/>       </extension>       <path value="NamingSystem.usage"/>       <short value="How/where is it used"/>       <definition value="Provides guidance on the use of the namespace, including the handling of formatting

       characters, use of upper vs. lower case, etc."/> 
      <min value="0"/>       <max value="1"/>       <type>         <code value="string"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="NamingSystem.uniqueId">      <path value="NamingSystem.uniqueId"/>       <short value="Unique identifiers used for system"/>       <definition value="Indicates how the system may be identified when referenced in electronic exchange."/>       <comment value="Multiple identifiers may exist, either due to duplicate registration, regional

       rules, needs of different communication technologies, etc."/> 
      <min value="1"/>       <max value="*"/>       <type>         <code value="BackboneElement"/>       </type>       <condition value="nsd-1"/>       <condition value="nsd-2"/>       <condition value="nsd-3"/>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>     </element>     <element id="NamingSystem.uniqueId.type">      <path value="NamingSystem.uniqueId.type"/>       <short value="oid | uuid | uri | iri-stem | v2csmnemonic | other"/>       <definition value="Identifies the unique identifier scheme used for this particular identifier."/>       <comment value="Different identifier types may be used in different types of communications (OIDs

       for v3, URIs for FHIR, etc.).  Other includes RUIDs from v3, standard v2 code name
       strings, etc. Preferred identifiers for the same identifier type SHOULD NOT overlap
       by period."/> 
      <min value="1"/>       <max value="1"/>       <type>         <code value="code"/>       </type>       <condition value="nsd-1"/>       <condition value="nsd-2"/>       <condition value="nsd-3"/>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <binding>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">          <valueString value="NamingSystemIdentifierType"/>         </extension>         <strength value="required"/>         <description value="Identifies the style of unique identifier used to identify a namespace."/>         <valueSet value="http://hl7.org/fhir/ValueSet/namingsystem-identifier-type|6.0.0-ballot3"/>       </binding>     </element>     <element id="NamingSystem.uniqueId.value">      <path value="NamingSystem.uniqueId.value"/>       <short value="The unique identifier"/> 
      <definition value="The string that should be sent over the wire to identify the code system or identifier
       system.
      If the value is a URI intended for use as FHIR system identifier, the URI should not contain
       &quot;\&quot; or &quot;?&quot; or &quot;,&quot; since this makes escaping very difficult.
      
      
      
        
      
      
        
        
      
    
    
      
      
      
      
      
      
        
      

       system."/> 
      <comment value="If the value is a URI intended for use as FHIR system identifier, the URI should

       not contain &quot;\&quot; or &quot;?&quot; or &quot;,&quot; since this makes escaping
       very difficult."/> 
      <min value="1"/>       <max value="1"/>       <type>         <code value="string"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <mapping>         <identity value="w5"/>         <map value="FiveWs.identifier"/>       </mapping>     </element>     <element id="NamingSystem.uniqueId.preferred">      <path value="NamingSystem.uniqueId.preferred"/>       <short value="Is this the id that should be used for this type"/>       <definition value="Indicates whether this identifier is the &quot;preferred&quot; identifier of this

       type."/> 
      <min value="0"/>       <max value="1"/>       <type>         <code value="boolean"/>       </type> 
      <meaningWhenMissing value="If there are multiple ids, and one is labeled &quot;preferred&quot;, then the assumption
       is that the others are not preferred. In the absence of any id marked as preferred, no
       inference can be drawn
    
    
      
      
      
      e.g. &quot;must be used in Germany&quot; or &quot;was initially published in error with
       this value&quot;.
      
      
      
        
      
    
    
      
      
      Identifies the period of time over which this identifier is considered appropriate to
       refer to the naming system.  Outside of this window, the identifier might be non-deterministic.
      Within a registry, a given identifier should only be &quot;active&quot; for a single namespace
       at a time.  (Ideally, an identifier should only ever be associated with a single namespace
       across all time).
      
      
      
        
      
    
    
      
      
      For naming systems that are retired, indicates the naming system that should be used in
       their place (if any).
      
      
      
        
        
      
      
    
  

       is that the others are not preferred. In the absence of any id marked as preferred,
       no inference can be drawn"/> 
      <condition value="nsd-2"/>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="NamingSystem.uniqueId.comment">      <path value="NamingSystem.uniqueId.comment"/>       <short value="Notes about identifier usage"/>       <definition value="Notes about the past or intended usage of this identifier."/>       <comment value="e.g. &quot;must be used in Germany&quot; or &quot;was initially published in error

       with this value&quot;."/> 
      <min value="0"/>       <max value="1"/>       <type>         <code value="string"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="NamingSystem.uniqueId.period">      <path value="NamingSystem.uniqueId.period"/>       <short value="When is identifier valid?"/>       <definition value="Identifies the period of time over which this identifier is considered appropriate

       to refer to the naming system.  Outside of this window, the identifier might be
       non-deterministic."/> 
      <comment value="Within a registry, a given identifier should only be &quot;active&quot; for a single

       namespace at a time.  (Ideally, an identifier should only ever be associated with
       a single namespace across all time).
The nuance of identifier deprecation is not represented with a separate element.
       When a determination is made that an identifier should not be used, the validity
       period end date is updated with the date the identifier is deemed to be deprecated.
       The identifier should no longer be used once the period end date is reached."/> 
      <min value="0"/>       <max value="1"/>       <type>         <code value="Period"/>       </type>       <condition value="nsd-3"/>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="NamingSystem.uniqueId.authoritative">      <path value="NamingSystem.uniqueId.authoritative"/>       <short value="Whether the identifier is authoritative"/>       <definition value="Indicates whether this identifier ie endorsed by the official owner of the associated

       naming system."/> 
      <min value="0"/>       <max value="1"/>       <type>         <code value="boolean"/>       </type>       <condition value="nsd-3"/>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>   </differential> 


</

StructureDefinition

>