Release 4 5

This page is part of the FHIR Specification (v4.0.1: R4 (v5.0.0: R5 - Mixed Normative and STU ) ). This is the current published version in it's permanent home (it will always be available at this URL). The current version which supercedes this version is 5.0.0 . For a full list of available versions, see the Directory of published versions . Page versions: R5 R4B R4 R3 R2

Group.profile.xml

Example StructureDefinition/Group (XML)

FHIR Infrastructure Work Group Maturity Level : N/A Standards Status : Informative Compartments : Device , Patient , Practitioner

Raw XML ( canonical form + also see XML Format Specification )

Jump past Narrative

StructureDefinition for group

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


  
  
    
  
  
    
    
      
        
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            Group : Represents a defined collection of entities that may be discussed or acted upon
             collectively but which are not expected to act collectively, and are not formally or legally
             recognized; i.e. a collection of entities that isn't an Organization.
            
          
          vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px
            
            padding-left: 3px; padding-right: 3px; border: 1px grey solid; font-weight: bold; color:
             black; background-color: #fff5e6
          
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           padding:0px 4px 0px 4pxGroup of multiple entities
            
            
            Elements defined in Ancestors: 
            The logical id of the resource, as used in the URL for the resource. Once assigned, this
             value never changes., 

<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="Group"/> 
  <meta> 
    <lastUpdated value="2023-03-26T15:21:02.749+11:00"/> 
  </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 : left; background-color: white; border: 0px #F0F0F0

           solid; padding:0px 4px 0px 4px">
            <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 : left; background-color: white; border: 0px #F0F0F0

           solid; padding:0px 4px 0px 4px">
            <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 : left; background-color: white; border: 0px #F0F0F0

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

           solid; padding:0px 4px 0px 4px">
            <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 : left; background-color: white; border: 0px #F0F0F0

           solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(data:image/png;bas
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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: white; background-color: inherit" title="Resource"/>              <span title="Group : Represents a defined collection of entities that may be discussed or acted

             upon collectively but which are not expected to act collectively, and are not formally
             or legally recognized; i.e. a collection of entities that isn't an Organization.">Group</span> 
            <a name="Group"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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: #fff5e6" title="Standards Status = Trial Use">TU</a> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0

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

           solid; padding:0px 4px 0px 4px">Group of multiple entities
            <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 might 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. Often, this is a reference to an
             implementation guide that defines the special rules along with other profiles etc., 
            , 
            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., 
            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.">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. 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
             can 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 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 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.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource
             (including cannot change the meaning of modifierExtension itself).
          
        

        
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           solid; padding:0px 4px 0px 4pxUnique id
            
          
        

        
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            Group.active : Indicates whether the record for the group is available for use or is merely
             being retained for historical purposes.
            
          
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           solid; padding:0px 4px 0px 4pxperson | animal | practitioner | device | medication | substance
            
             (
            )
          
        

        
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            Group.actual : If true, indicates that the resource refers to a specific group of real
             individuals.  If false, the group defines a set of intended individuals.
            
          
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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
        

        
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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> 
          </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 : 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
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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: #F7F7F7; background-color: inherit" title="Data Type"/>              <span title="Group.identifier : Business identifiers assigned to this participant by one of

             the applications involved.  These identifiers remain constant as the resource is
             updated and propagates from server to server.">identifier</span> 
            <a name="Group.identifier"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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" title="This element is included in summaries">Σ</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px

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

           #F0F0F0 solid; padding:0px 4px 0px 4px">Business Identifier for this Group
            <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 : left; background-color: white; border: 0px #F0F0F0

           solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(data:image/png;bas
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          9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <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="Group.active : Indicates whether the record for the group is available for use

             or is merely being retained for historical purposes.">active</span> 
            <a name="Group.active"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; 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" 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" title="This element is included in summaries">Σ</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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 : 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 : left; background-color: white; border: 0px #F0F0F0

           solid; padding:0px 4px 0px 4px">Whether this group's record is in active use
            <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 : left; background-color: #F7F7F7; border: 0px

           #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
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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: #F7F7F7; background-color: inherit" title="Primitive Data Type"/>              <span title="Group.type : Identifies the broad classification of the kind of resources the group

             includes.">type</span> 
            <a name="Group.type"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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" title="This element is included in summaries">Σ</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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 : 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 : left; background-color: #F7F7F7; border: 0px

           #F0F0F0 solid; padding:0px 4px 0px 4px">person | animal | practitioner | device | careteam | healthcareservice | location
             | organization | relatedperson | specimen
            <br/>  Binding:             <a href="valueset-group-type.html">Group 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:

         white">
          <td class="hierarchy" style="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;bas
          e64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAwEwfT6/ddA0GBAxO3NrLlKUj
          9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <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="Group.membership : Basis for membership in the Group:
* 'definitional': The Group.characteristics specified are both necessary and sufficient
             to determine membership. All entities that meet the criteria are considered to
             be members of the group, whether referenced by the group or not. If members are
             present, they are individuals that happen to be known as meeting the Group.characteristics.
             The list cannot be presumed to be complete.
* 'enumerated': The Group.characteristics are necessary but not sufficient to determine
             membership. Membership is determined by being listed as one of the Group.member.">membership</span> 
            <a name="Group.membership"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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" title="This element is included in summaries">Σ</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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 : 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 : left; background-color: white; border: 0px #F0F0F0

           solid; padding:0px 4px 0px 4px">definitional | enumerated
            <br/>  Binding:             <a href="valueset-group-membership-basis.html">Group Membership Basis</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 : left; background-color: #F7F7F7; border: 0px

           #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
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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: #F7F7F7; background-color: inherit" title="Data Type"/>  
            <span title="Group.code : Provides a specific type of resource the group includes; e.g. &quot;cow&quot;,
             &quot;syringe&quot;, etc.
            
          
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          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
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             &quot;syringe&quot;, etc.">code</span> 
            <a name="Group.code"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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" title="This element is included in summaries">Σ</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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 : 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 : left; background-color: #F7F7F7; border: 0px

           #F0F0F0 solid; padding:0px 4px 0px 4px">Kind of Group members
            <br/>  Binding: GroupKind (            <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/>            </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 : left; background-color: white; border: 0px #F0F0F0

           solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(data:image/png;bas
          e64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAwEwfT6/ddA0GBAxO3NrLlKUj
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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="Primitive Data Type"/>              <span title="Group.name : A label assigned to the group for human identification and communication.">name</span>             <a name="Group.name"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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" title="This element is included in summaries">Σ</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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 : 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 : left; background-color: white; border: 0px #F0F0F0

           solid; padding:0px 4px 0px 4px">Label for Group
            <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 : left; background-color: #F7F7F7; border: 0px

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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: #F7F7F7; background-color: inherit" title="Primitive Data Type"/>              <span title="Group.description : Explanation of what the group represents and how it is intended

             to be used.">description</span> 
            <a name="Group.description"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px

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

           #F0F0F0 solid; padding:0px 4px 0px 4px">Natural language description of the group
            <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 : left; background-color: white; border: 0px #F0F0F0

           solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(data:image/png;bas
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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="Primitive Data Type"/>              <span title="Group.quantity : A count of the number of resource instances that are part of the

             group.">quantity</span> 
            <a name="Group.quantity"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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" title="This element is included in summaries">Σ</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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 : left; background-color: white; border: 0px #F0F0F0

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

           solid; padding:0px 4px 0px 4px">Number of members
            <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 : left; background-color: #F7F7F7; border: 0px

           #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
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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: #F7F7F7; background-color: inherit" title="Reference to another Resource"/>  
            <span title="Group.managingEntity : Entity responsible for defining and maintaining Group characteristics
             and/or registered members.
            
          
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            (
             | 
             | 
             | 
            )
          
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            Group.characteristic : Identifies traits whose presence r absence is shared by members
             of the group.
            
          
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           solid; padding:0px 4px 0px 4pxInclude / Exclude group members by Trait
            
          
        

        
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           padding:0px 4px 0px 4px
        

        
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            Group.characteristic.value[x] : The value of the trait that holds (or does not hold -
             see 'exclude') for members of the group.
            
          
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            A concept that may be defined by a formal reference to a terminology or ontology or may
             be provided by text.
          
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          vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0
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             and/or registered members.">managingEntity</span> 
            <a name="Group.managingEntity"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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" title="This element is included in summaries">Σ</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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 : left; background-color: #F7F7F7; border: 0px

           #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="references.html#Reference">Reference</a> (            <a href="organization.html">Organization</a>  |             <a href="relatedperson.html">RelatedPerson</a>  |             <a href="practitioner.html">Practitioner</a>  |             <a href="practitionerrole.html">PractitionerRole</a> )          </td>           <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px

           #F0F0F0 solid; padding:0px 4px 0px 4px">Entity that is the custodian of the Group's definition
            <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 : left; background-color: white; border: 0px #F0F0F0

           solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(data:image/png;bas
          e64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAwEwfT6/ddA0GBAxO3NrLlKUj
          9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
            <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="Element"/>              <span title="Group.characteristic : Identifies traits whose presence r absence is shared by

             members of the group.">characteristic</span> 
            <a name="Group.characteristic"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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" title="This element is included in summaries">Σ</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0

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

           solid; padding:0px 4px 0px 4px">Include / Exclude group members by Trait
            <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 : left; background-color: #F7F7F7; border: 0px

           #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
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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: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Data Type"/>              <span title="Group.characteristic.code : A code that identifies the kind of trait being asserted.">code</span>             <a name="Group.characteristic.code"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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" title="This element is included in summaries">Σ</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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 : 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 : left; background-color: #F7F7F7; border: 0px

           #F0F0F0 solid; padding:0px 4px 0px 4px">Kind of characteristic
            <br/>  Binding: GroupCharacteristicKind (            <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/>            </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 : left; background-color: white; border: 0px #F0F0F0

           solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(data:image/png;bas
          e64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAMUlEQVR4Xu3LMQoAIBADwftr/v8GtdbqEAthAtMspJ
          JUx9rYW8ftHwAA+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: white; background-color: inherit" title="Choice of Types"/>              <span title="Group.characteristic.value[x] : The value of the trait that holds (or does not

             hold - see 'exclude') for members of the group.">value[x]</span> 
            <a name="Group.characteristic.value_x_"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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" title="This element is included in summaries">Σ</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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 : left; background-color: white; border: 0px #F0F0F0

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

           solid; padding:0px 4px 0px 4px">Value held by characteristic
            <br/>  Binding: GroupCharacteristicValue (            <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/>            </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 : left; background-color: #F7F7F7; border: 0px

           #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAMUlEQVR4Xu3LsQ0AIAw
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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: 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="A concept that may be defined by a formal reference to a terminology or ontology

             or may be provided by text.">valueCodeableConcept</span> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px

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

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

           solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(data:image/png;bas
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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: 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="Value of &quot;true&quot; or &quot;false&quot;">valueBoolean</span>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0

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

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

           #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
           url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAMUlEQVR4Xu3LsQ0AIAw
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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: 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="A measured amount (or an amount that can potentially be measured). Note that measured
             amounts include amounts that are not precisely quantified, including amounts involving
             arbitrary units and floating currencies.
          
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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 4px
        

        
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            Group.characteristic.exclude : If true, indicates the characteristic is one that is NOT
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            Group.characteristic.period : The period over which the characteristic is tested; e.g.
             the patient had an operation during the month of June.
            
          
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           solid; padding:0px 4px 0px 4pxWho or what is in group
            
          
        

        
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            Group.member.entity : A reference to the entity that is a member of the group. Must be
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            (
             | 
             | 
             | 
             | 
             | 
             | 
            )
          
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          vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0
           solid; padding:0px 4px 0px 4px
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           solid; padding:0px 4px 0px 4px
          vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0
           solid; padding:0px 4px 0px 4px
            
          
          vertical-align: top; text-align : left; background-color: #F7F7F7; 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=)
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            NdCABMPwMo2ctnoQAAAABJRU5ErkJggg==
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
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            FCMGrAqAGjBowaMGoAAgAALL0DKYQ0DPIAAAAASUVORK5CYII=
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
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            TRgwAAAABJRU5ErkJggg== 
            Group.member.inactive : A flag to indicate that the member is no longer in the group,
             but previously may have been a member.
            
          
          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
            
          
        
      
    
  
  
    
  
  
    
  
  
    
  
  
    
  
  
    
  
  
  
  
  
  
  
  
    
      
      
    
  
  
    
      
      
    
  
  Represents a defined collection of entities that may be discussed or acted upon collectively
   but which are not expected to act collectively, and are not formally or legally recognized;
   i.e. a collection of entities that isn't an Organization.
  
  
    
    
    
  
  
    
    
    
  
  
  
  
  
  
  
    
      
      
      Represents a defined collection of entities that may be discussed or acted upon collectively
       but which are not expected to act collectively, and are not formally or legally recognized;
       i.e. a collection of entities that isn't an Organization.
      If both Group.characteristic and Group.member are present, then the members are the individuals
       who were found who met the characteristic.  It's possible that there might be other candidate
       members who meet the characteristic and aren't (yet) in the list.  All members SHALL have
       the listed characteristics.
      
      
      
        
        
        
      
      
        
        
        
        
        
        
      
      
        
        
        If the resource is contained in another resource, it SHALL be referred to from elsewhere
         in the resource or SHALL refer to the containing resource
        contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonica
        l) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(refer
        ence = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(c
        anonical) = '#').exists()).not()).trace('unmatched', id).empty()
        not(exists(for $id in f:contained/*/f:id/@value return $contained[not(parent::*/descendant::f:refere
        nce/@value=concat('#', $contained/*/id/@value) or descendant::f:reference[@value='#'])]))
        
      
      
        
        
        If a resource is contained in another resource, it SHALL NOT have a meta.versionId or
         a meta.lastUpdated
        
        
        
      
      
        
        
        
        
        
        
      
      
        
          
        
        
          When a resource has no narrative, only systems that fully understand the data can display
           the resource to a human safely. Including a human readable representation in the resource
           makes for a much more robust eco-system and cheaper handling of resources by intermediary
           systems. Some ecosystems restrict distribution of resources to only those systems that
           do fully understand the resources, and as a consequence implementers may believe that
           the narrative is superfluous. However experience shows that such eco-systems often open
           up to new participants over time.
        
        
        
        
        
        
        
      
      
        
        
        
        
        
      
      
      
      
        
        
      
      
        
        
      
    
    
      
      
      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.
      
      
      
        
        
        
      
    <!--  Note: special primitive values have a FHIRPath system type. e.g. this is compiler magic
       (j)  -->
      
        
          
        
        
      
      
      
    
    
      
      

             arbitrary units and floating currencies.">valueQuantity</span> 
          </td>           <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px

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

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

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

           solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(data:image/png;bas
          e64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAMUlEQVR4Xu3LsQ0AIAwDwezq/WcAaqhSoDRn6ZqXXE
          mq42zdrWP6DwAAzHkCAADALxtMUUAsbN3VPQAAAABJRU5ErkJggg==)">
            <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: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Data Type"/>              <span title="A set of ordered Quantities defined by a low and high limit.">valueRange</span>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0

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

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

           solid; padding:0px 4px 0px 4px">
            <a href="datatypes.html#Range">Range</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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 : 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: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Reference to another Resource"/>  valueReference          </td>           <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px

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

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

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

           solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(data:image/png;bas
          e64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAMUlEQVR4Xu3LMQoAIBADwftr/v8GtdbqEAthAtMspJ
          JUx9rYW8ftHwAA+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: white; background-color: inherit" title="Primitive Data Type"/>              <span title="Group.characteristic.exclude : If true, indicates the characteristic is one that

             is NOT held by members of the group.">exclude</span> 
            <a name="Group.characteristic.exclude"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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" title="This element is included in summaries">Σ</a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : 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 : 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 : left; background-color: white; border: 0px #F0F0F0

           solid; padding:0px 4px 0px 4px">Group includes or excludes
            <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 : 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: inherit"/>             <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Data Type"/>              <span title="Group.characteristic.period : The period over which the characteristic is tested;

             e.g. the patient had an operation during the month of June.">period</span> 
            <a name="Group.characteristic.period"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px

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

           #F0F0F0 solid; padding:0px 4px 0px 4px">Period over which characteristic is tested
            <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 : left; background-color: white; border: 0px #F0F0F0

           solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(data:image/png;bas
          e64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAJUlEQVR4Xu3IIQEAAAgDsHd9/w4EQIOamFnaBgAA4M
          MKAACAKwNp30CqZFfFmwAAAABJRU5ErkJggg==)">
            <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="Element"/>              <span title="Group.member : Identifies the resource instances that are members of the group.">member</span>             <a name="Group.member"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0

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

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

           solid; padding:0px 4px 0px 4px">Who or what is in group
            <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 : 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="Reference to another Resource"/>              <span title="Group.member.entity : A reference to the entity that is a member of the group.

             Must be consistent with Group.type. If the entity is another group, then the type
             must be the same.">entity</span> 
            <a name="Group.member.entity"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px

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

           #F0F0F0 solid; padding:0px 4px 0px 4px">
            <a href="references.html#Reference">Reference</a> (            <a href="careteam.html">CareTeam</a>  |             <a href="device.html">Device</a>  |             <a href="group.html">Group</a>  |             <a href="healthcareservice.html">HealthcareService</a>  |             <a href="location.html">Location</a>  |             <a href="organization.html">Organization</a>  |             <a href="patient.html">Patient</a>  |             <a href="practitioner.html">Practitioner</a>  |             <a href="practitionerrole.html">PractitionerRole</a>  |             <a href="relatedperson.html">RelatedPerson</a>  |             <a href="specimen.html">Specimen</a> )          </td>           <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px

           #F0F0F0 solid; padding:0px 4px 0px 4px">Reference to the group member
            <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 : left; background-color: white; border: 0px #F0F0F0

           solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(data:image/png;bas
          e64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALElEQVR4Xu3IsQ0AIAwEsez6+89AqKGGJj7JzVWS+m
          m3zgcAAMxwDQAAgFcaYAVAgNGLTjgAAAAASUVORK5CYII=)">
            <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="Group.member.period : The period that the member was in the group, if known.">period</span>             <a name="Group.member.period"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0

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

           solid; padding:0px 4px 0px 4px">Period member belonged to the group
            <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 : 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="Group.member.inactive : A flag to indicate that the member is no longer in the

             group, but previously may have been a member.">inactive</span> 
            <a name="Group.member.inactive"> </a>           </td>           <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px

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

           #F0F0F0 solid; padding:0px 4px 0px 4px">If member is no longer in group
            <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-category">    <valueString value="Base.Individuals"/>   </extension>   <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">    <valueCode value="trial-use"/>   </extension>   <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">    <valueInteger value="3"/>   </extension>   <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-security-category">    <valueCode value="business"/>   </extension>   <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">    <valueCode value="fhir"/>   </extension>   <url value="http://hl7.org/fhir/StructureDefinition/Group"/>   <version value="5.0.0"/>   <name value="Group"/>   <status value="draft"/>   <experimental value="false"/>   <date value="2023-03-26T15:21:02+11:00"/>   <publisher value="Health Level Seven International (FHIR Infrastructure)"/>   <contact>     <telecom>       <system value="url"/>       <value value="http://hl7.org/fhir"/>     </telecom>   </contact>   <contact>     <telecom>       <system value="url"/>       <value value="http://www.hl7.org/Special/committees/fiwg/index.cfm"/>     </telecom>   </contact>   <description value="Represents a defined collection of entities that may be discussed or acted upon

   collectively but which are not expected to act collectively, and are not formally
   or legally recognized; i.e. a collection of entities that isn't an Organization."/> 
  <jurisdiction>     <coding>       <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/>       <code value="001"/>       <display value="World"/>     </coding>   </jurisdiction>   <fhirVersion value="5.0.0"/>   <mapping>     <identity value="w5"/>     <uri value="http://hl7.org/fhir/fivews"/>     <name value="FiveWs Pattern Mapping"/>   </mapping>   <mapping>     <identity value="rim"/>     <uri value="http://hl7.org/v3"/>     <name value="RIM Mapping"/>   </mapping>   <mapping>     <identity value="interface"/>     <uri value="http://hl7.org/fhir/interface"/>     <name value="Interface Pattern"/>   </mapping>   <kind value="resource"/>   <abstract value="false"/>   <type value="Group"/>   <baseDefinition value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>   <derivation value="specialization"/>   <snapshot>     <element id="Group">      <path value="Group"/>       <short value="Group of multiple entities"/>       <definition value="Represents a defined collection of entities that may be discussed or acted upon

       collectively but which are not expected to act collectively, and are not formally
       or legally recognized; i.e. a collection of entities that isn't an Organization."/> 
      <comment value="If both Group.characteristic and Group.member are present, then the members are

       the individuals who were found who met the characteristic.  It's possible that
       there might be other candidate members who meet the characteristic and aren't (yet)
       in the list.  All members SHALL have the listed characteristics."/> 
      <min value="0"/>       <max value="*"/>       <base>         <path value="Group"/>         <min value="0"/>         <max value="*"/>       </base>       <constraint>         <key value="dom-2"/>         <severity value="error"/>         <human value="If the resource is contained in another resource, it SHALL NOT contain nested Resources"/>         <expression value="contained.contained.empty()"/>         <source value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>       </constraint>       <constraint>         <key value="dom-3"/>         <severity value="error"/>         <human value="If the resource is contained in another resource, it SHALL be referred to from

         elsewhere in the resource or SHALL refer to the containing resource"/> 
        <expression value="contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().ofTy

        pe(canonical) | %resource.descendants().ofType(uri) | %resource.descendants().ofType(url)))
         or descendants().where(reference = '#').exists() or descendants().where(ofType(canonical)
         = '#').exists() or descendants().where(ofType(canonical) = '#').exists()).not()).trace('unmat
        ched', id).empty()"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>       </constraint>       <constraint>         <key value="dom-4"/>         <severity value="error"/>         <human value="If a resource is contained in another resource, it SHALL NOT have a meta.versionId

         or a meta.lastUpdated"/> 
        <expression value="contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()"/>         <source value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>       </constraint>       <constraint>         <key value="dom-5"/>         <severity value="error"/>         <human value="If a resource is contained in another resource, it SHALL NOT have a security label"/>         <expression value="contained.meta.security.empty()"/>         <source value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>       </constraint>       <constraint>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice">          <valueBoolean value="true"/>         </extension>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice-explanation">          <valueMarkdown value="When a resource has no narrative, only systems that fully understand the data can

           display the resource to a human safely. Including a human readable representation
           in the resource makes for a much more robust eco-system and cheaper handling of
           resources by intermediary systems. Some ecosystems restrict distribution of resources
           to only those systems that do fully understand the resources, and as a consequence
           implementers may believe that the narrative is superfluous. However experience
           shows that such eco-systems often open up to new participants over time."/> 
        </extension>         <key value="dom-6"/>         <severity value="warning"/>         <human value="A resource should have narrative for robust management"/>         <expression value="text.`div`.exists()"/>         <source value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>       <mapping>         <identity value="rim"/>         <map value="Entity, Role, or Act,Entity[determinerCode=&quot;GRP&quot; or determinerCode=&quot;GRP_KIND&q

        uot;]"/> 
      </mapping>       <mapping>         <identity value="w5"/>         <map value="administrative.group"/>       </mapping>       <mapping>         <identity value="interface"/>         <map value="Participant"/>       </mapping>     </element>     <element id="Group.id">      <path value="Group.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="id"/>         </extension>         <code value="http://hl7.org/fhirpath/System.String"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>     </element>     <element id="Group.meta">      <path value="Group.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 might 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. Often, this is a reference to an
       implementation guide that defines the special rules along with other profiles etc.
      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
       it's narrative along with other profiles, value sets, etc.
      
      
      
        
        
        
      
      
        
      
      
        
        
        
        
        
        
      
      

       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="Group.implicitRules">      <path value="Group.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."/> 
      <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 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 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.
      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 information 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. Contained
       resources may have profiles and tags In their meta elements, but SHALL NOT have security
       labels.
      
      
      
      
      
      
        
        
        
      
      
        
      
      
      
      
        
        
      
    
    
      
      

       knowledge about the resource that modifies its meaning or interpretation"/> 
      <isSummary value="true"/>     </element>     <element id="Group.language">      <path value="Group.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|5.0.0"/>         <additional>           <purpose value="starter"/>           <valueSet value="http://hl7.org/fhir/ValueSet/languages"/>         </additional>       </binding>     </element>     <element id="Group.text">      <path value="Group.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="Group.contained">      <path value="Group.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."/> 
      <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="Group.extension">      <path value="Group.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. 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
       can 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>       <constraint>         <key value="ext-1"/>         <severity value="error"/>         <human value="Must have either extensions or value[x], not both"/>         <expression value="extension.exists() != value.exists()"/>         <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>       </constraint>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>       <mapping>         <identity value="rim"/>         <map value="N/A"/>       </mapping>     </element>     <element id="Group.modifierExtension">      <path value="Group.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 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 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.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource
       (including cannot change the meaning of modifierExtension itself).
      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.
      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.ht
      ml#modifierExtension).
      
      
      
      
      
        
        
        
      
      
        
      
      
        
        
        
        
        
        
      
      
        
        
        
        
        
        
      
      
      Modifier extensions are expected to modify the meaning or interpretation of the resource
       that contains them
      
      
        
        
      
    
    
      
      
      
      
      
      
      
        
        
        
      
      
        
      
      
        
        
        
        
        
        
      
      
      
      
        
        
      
      
        
        
      
    
    
      
      
      Indicates whether the record for the group is available for use or is merely being retained
       for historical purposes.
      Need to be able to mark a group record as not to be used because it was created in error
       or is otherwise no longer available (e.g. a herd that no longer exists).
      
      
      
        
        
        
      
      
        
      
      This resource is generally assumed to be active if no value is provided for the active
       element
      
        
        
        
        
        
        
      
      
      
      
        
        
      
      
        
        
      
    
    
      
      
      
      Group members SHALL be of the appropriate resource type (Patient for person or animal;
       or Practitioner, Device, Medication or Substance for the other types.).
      
      
      
      
        
        
        
      
      
        
      
      
        
        
        
        
        
        
      
      
      
      
        
          
        
        
        
        
      
      
        
        
      
      
        
        person: ./classCode=&quot;PSN&quot;  animal: ./classCode=&quot;ANM&quot;  device: ./classCode=&quot;
        DEV&quot;  medication: ./classCode=&quot;MMAT&quot; and ./playedRole[isNormalRole() and
         classCode=&quot;THER&quot;]  food: ./classCode=&quot;FOOD&quot;
      
    
    
      
      
      If true, indicates that the resource refers to a specific group of real individuals. 
       If false, the group defines a set of intended individuals.
      There are use-cases for groups that define specific collections of individuals, and other
       groups that define &quot;types&quot; of intended individuals.  The requirements for both
       kinds of groups are similar, so we use a single resource, distinguished by this flag.
      
      
      
        
        
        
      
      
        
      
      
      
        
        
        
        
        
        
      
      
      
      
        
        
      
      
        
        
      
    
    
      
      
      Provides a specific type of resource the group includes; e.g. &quot;cow&quot;, &quot;syringe&quot;,
       etc.
      
      
      
      
        
        
        
      
      
        
      
      
        
        
        
        
        
        
      
      
      
      
        
          
        
        
        
      
      
        
        
      
      
        
        
      
    
    
      
      
      
      
      
      
      
        
        
        
      
      
        
      
      
        
        
        
        
        
        
      
      
      
      
        
        
      
    
    
      
      
      
      Note that the quantity may be less than the number of members if some of the members are
       not active.
      
      
      
      
        
        
        
      
      
        
      
      
        
        
        
        
        
        
      
      
      
      
        
        
      
    
    
      
      

       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>       <constraint>         <key value="ext-1"/>         <severity value="error"/>         <human value="Must have either extensions or value[x], not both"/>         <expression value="extension.exists() != value.exists()"/>         <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>       </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="Group.identifier">      <path value="Group.identifier"/>       <short value="Business Identifier for this Group"/>       <definition value="Business identifiers assigned to this participant by one of the applications involved.

        These identifiers remain constant as the resource is updated and propagates from
       server to server."/> 
      <comment value="Note: This is a business identifier, not a resource identifier (see [discussion](resource.htm

      l#identifiers)).  It is best practice for the identifier to only appear on a single
       resource instance, however business practices may occasionally dictate that multiple
       resource instances with the same identifier can exist - possibly even with different
       resource types."/> 
      <requirements value="Allows identification of the group as it is known by various participating systems

       and in a way that remains consistent across servers."/> 
      <min value="0"/>       <max value="*"/>       <base>         <path value="Group.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="rim"/>         <map value="unique(./id[displayable=&quot;true&quot; and scope=&quot;OBJ&quot;])"/>       </mapping>       <mapping>         <identity value="interface"/>         <map value="Participant.identifier"/>       </mapping>     </element>     <element id="Group.active">      <path value="Group.active"/>       <short value="Whether this group's record is in active use"/>       <definition value="Indicates whether the record for the group is available for use or is merely being

       retained for historical purposes."/> 
      <requirements value="Need to be able to mark a group record as not to be used because it was created

       in error or is otherwise no longer available (e.g. a herd that no longer exists)."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="Group.active"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="boolean"/>       </type>       <meaningWhenMissing value="This resource is generally assumed to be active if no value is provided for the

       active element"/> 
      <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 labelled as a modifier because it is a status element that can

       indicate that a record should not be treated as valid"/> 
      <isSummary value="true"/>       <mapping>         <identity value="w5"/>         <map value="FiveWs.status"/>       </mapping>       <mapping>         <identity value="rim"/>         <map value="./statusCode"/>       </mapping>       <mapping>         <identity value="interface"/>         <map value="Participant.active"/>       </mapping>     </element>     <element id="Group.type">      <path value="Group.type"/>       <short value="person | animal | practitioner | device | careteam | healthcareservice | location

       | organization | relatedperson | specimen"/> 
      <definition value="Identifies the broad classification of the kind of resources the group includes."/>       <comment value="Group members SHALL be of the appropriate resource type (Patient for person or

       animal; or Practitioner, PractitionerRole, Device, CareTeam, HealthcareService,
       Location, Organization, RelatedPerson, or Specimen for the other types.), or a
       Group of the resources of the appropriate type."/> 
      <requirements value="Identifies what type of resources the group is made up of."/>       <min value="1"/>       <max value="1"/>       <base>         <path value="Group.type"/>         <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="false"/>       <isSummary value="true"/>       <binding>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">          <valueString value="GroupType"/>         </extension>         <strength value="required"/>         <description value="Types of resources that are part of group."/>         <valueSet value="http://hl7.org/fhir/ValueSet/group-type|5.0.0"/>       </binding>       <mapping>         <identity value="w5"/>         <map value="FiveWs.class"/>       </mapping>       <mapping>         <identity value="rim"/>         <map value="person: ./classCode=&quot;PSN&quot;  animal: ./classCode=&quot;ANM&quot;  device:

         ./classCode=&quot;DEV&quot;  medication: ./classCode=&quot;MMAT&quot; and ./playedRole[isNorm
        alRole() and classCode=&quot;THER&quot;]  food: ./classCode=&quot;FOOD&quot;"/> 
      </mapping>     </element>     <element id="Group.membership">      <path value="Group.membership"/>       <short value="definitional | enumerated"/>       <definition value="Basis for membership in the Group:
* 'definitional': The Group.characteristics specified are both necessary and sufficient
       to determine membership. All entities that meet the criteria are considered to
       be members of the group, whether referenced by the group or not. If members are
       present, they are individuals that happen to be known as meeting the Group.characteristics.
       The list cannot be presumed to be complete.
* 'enumerated': The Group.characteristics are necessary but not sufficient to determine
       membership. Membership is determined by being listed as one of the Group.member."/> 
      <requirements value="There are use-cases for groups that define specific collections of individuals,

       and other groups that define &quot;types&quot; of intended individuals.  The requirements
       for both kinds of groups are similar, so we use a single resource, distinguished
       by this element."/> 
      <min value="1"/>       <max value="1"/>       <base>         <path value="Group.membership"/>         <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="false"/>       <isSummary value="true"/>       <binding>         <strength value="required"/>         <description value="The basis for membership in a group"/>         <valueSet value="http://hl7.org/fhir/ValueSet/group-membership-basis|5.0.0"/>       </binding>     </element>     <element id="Group.code">      <path value="Group.code"/>       <short value="Kind of Group members"/>       <definition value="Provides a specific type of resource the group includes; e.g. &quot;cow&quot;,

       &quot;syringe&quot;, etc."/> 
      <comment value="This would generally be omitted for Person resources."/>       <min value="0"/>       <max value="1"/>       <base>         <path value="Group.code"/>         <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="true"/>       <binding>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">          <valueString value="GroupKind"/>         </extension>         <strength value="example"/>         <description value="Kind of particular resource; e.g. cow, syringe, lake, etc."/>       </binding>       <mapping>         <identity value="w5"/>         <map value="FiveWs.what[x]"/>       </mapping>       <mapping>         <identity value="rim"/>         <map value="./code"/>       </mapping>     </element>     <element id="Group.name">      <path value="Group.name"/>       <short value="Label for Group"/>       <definition value="A label assigned to the group for human identification and communication."/>       <requirements value="Used to identify the group in human communication."/>       <min value="0"/>       <max value="1"/>       <base>         <path value="Group.name"/>         <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="rim"/>         <map value="./name[type=&quot;ST&quot;]"/>       </mapping>       <mapping>         <identity value="interface"/>         <map value="Participant.name"/>       </mapping>     </element>     <element id="Group.description">      <path value="Group.description"/>       <short value="Natural language description of the group"/>       <definition value="Explanation of what the group represents and how it is intended to be used."/>       <min value="0"/>       <max value="1"/>       <base>         <path value="Group.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="Group.quantity">      <path value="Group.quantity"/>       <short value="Number of members"/>       <definition value="A count of the number of resource instances that are part of the group."/>       <comment value="Note that the quantity may be less than the number of members if some of the members

       are not active."/> 
      <requirements value="Group size is a common defining characteristic."/>       <min value="0"/>       <max value="1"/>       <base>         <path value="Group.quantity"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="unsignedInt"/>       </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="rim"/>         <map value="./quantity"/>       </mapping>     </element>     <element id="Group.managingEntity">      <path value="Group.managingEntity"/>       <short value="Entity that is the custodian of the Group's definition"/> 
      <definition value="Entity responsible for defining and maintaining Group characteristics and/or registered
       members.
      This does not strictly align with ownership of a herd or flock, but may suffice to represent
       that relationship in simple cases. More complex cases will require an extension.
      
      
      
        
        
        
      
      
        
        
        
        
        
      
      
        
        
        
        
        
        
      
      
      
    
    
      
      
      
      
      
      
      
      
        
        
        
      
      
        
      
      
        
        
        
        
        
        
      
      
      
      
        
        ./playedRole[isNormalRole()]/participation[isNormalParticipation() and typeCode=&quot;SBJ&quot;]/act
        [isNormalAct and classCode=&quot;OBS&quot; and moodCode=&quot;EVN&quot;]
      
    
    
      
      
      
      Unique id for the element within a resource (for internal references). This may be any
       string value that does not contain spaces.
      
      
      
        
        
        
      
    <!--  Note: special primitive values have a FHIRPath system type. e.g. this is compiler magic
       (j)  -->
      
        
          
        
        
      
      
      
      
        
        
      
    
    
      
      

       members."/> 
      <comment value="This does not strictly align with ownership of a herd or flock, but may suffice

       to represent that relationship in simple cases. More complex cases will require
       an extension."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="Group.managingEntity"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="Reference"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/Organization"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/RelatedPerson"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/Practitioner"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/PractitionerRole"/>       </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="Group.characteristic">      <path value="Group.characteristic"/>       <short value="Include / Exclude group members by Trait"/>       <definition value="Identifies traits whose presence r absence is shared by members of the group."/>       <comment value="All the identified characteristics must be true for an entity to a member of the

       group."/> 
      <requirements value="Needs to be a generic mechanism for identifying what individuals can be part of

       a group."/> 
      <min value="0"/>       <max value="*"/>       <base>         <path value="Group.characteristic"/>         <min value="0"/>         <max value="*"/>       </base>       <type>         <code value="BackboneElement"/>       </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="rim"/>         <map value="./playedRole[isNormalRole()]/participation[isNormalParticipation() and typeCode=&quot;SBJ&quo

        t;]/act[isNormalAct and classCode=&quot;OBS&quot; and moodCode=&quot;EVN&quot;]"/> 
      </mapping>     </element>     <element id="Group.characteristic.id">      <path value="Group.characteristic.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="Group.characteristic.extension">      <path value="Group.characteristic.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. 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
       can 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>       <constraint>         <key value="ext-1"/>         <severity value="error"/>         <human value="Must have either extensions or value[x], not both"/>         <expression value="extension.exists() != value.exists()"/>         <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>       </constraint>       <isModifier value="false"/>       <isSummary value="false"/>       <mapping>         <identity value="rim"/>         <map value="n/a"/>       </mapping>     </element>     <element id="Group.characteristic.modifierExtension">      <path value="Group.characteristic.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 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 manageable,
       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).
      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.
      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.ht
      ml#modifierExtension).
      
      
      
      
      
      
        
        
        
      
      
        
      
      
        
        
        
        
        
        
      
      
        
        
        
        
        
        
      
      
      Modifier extensions are expected to modify the meaning or interpretation of the element
       that contains them
      
      
        
        
      
    
    
      
      
      
      
      
      
      
        
        
        
      
      
        
      
      
        
        
        
        
        
        
      
      
      
      
        
          
        
        
        List of characteristics used to describe group members; e.g. gender, age, owner, location,
         etc.
      
      
        
        
      
    
    
      
      
      The value of the trait that holds (or does not hold - see 'exclude') for members of the
       group.
      For Range, it means members of the group have a value that falls somewhere within the
       specified range.
      
      
      
      
        
        
        
      
      
        
      
      
        
      
      
        
      
      
        
      
      
        
      
      
        
        
        
        
        
        
      
      
      
      
        
          
        
        
        
      
      
        
        
      
    
    
      
      
      
      This is labeled as &quot;Is Modifier&quot; because applications cannot wrongly include
       excluded members as included or vice versa.
      
      
      
      
        
        
        
      
      
        
      
      
        
        
        
        
        
        
      
      
      
      
        
        
      
    
    
      
      

       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>       <constraint>         <key value="ext-1"/>         <severity value="error"/>         <human value="Must have either extensions or value[x], not both"/>         <expression value="extension.exists() != value.exists()"/>         <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>       </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="Group.characteristic.code">      <path value="Group.characteristic.code"/>       <short value="Kind of characteristic"/>       <definition value="A code that identifies the kind of trait being asserted."/>       <requirements value="Need a formal way of identifying the characteristic being described."/>       <min value="1"/>       <max value="1"/>       <base>         <path value="Group.characteristic.code"/>         <min value="1"/>         <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="true"/>       <binding>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">          <valueString value="GroupCharacteristicKind"/>         </extension>         <strength value="example"/>         <description value="List of characteristics used to describe group members; e.g. gender, age, owner,

         location, etc."/> 
      </binding>       <mapping>         <identity value="rim"/>         <map value="./code"/>       </mapping>     </element>     <element id="Group.characteristic.value[x]">      <path value="Group.characteristic.value[x]"/>       <short value="Value held by characteristic"/>       <definition value="The value of the trait that holds (or does not hold - see 'exclude') for members

       of the group."/> 
      <comment value="For Range, it means members of the group have a value that falls somewhere within

       the specified range."/> 
      <requirements value="The value of the characteristic is what determines group membership."/>       <min value="1"/>       <max value="1"/>       <base>         <path value="Group.characteristic.value[x]"/>         <min value="1"/>         <max value="1"/>       </base>       <type>         <code value="CodeableConcept"/>       </type>       <type>         <code value="boolean"/>       </type>       <type>         <code value="Quantity"/>       </type>       <type>         <code value="Range"/>       </type>       <type>         <code value="Reference"/>       </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="GroupCharacteristicValue"/>         </extension>         <strength value="example"/>         <description value="Value of descriptive member characteristic; e.g. red, male, pneumonia, Caucasian,

         etc."/> 
      </binding>       <mapping>         <identity value="rim"/>         <map value="./value"/>       </mapping>     </element>     <element id="Group.characteristic.exclude">      <path value="Group.characteristic.exclude"/>       <short value="Group includes or excludes"/>       <definition value="If true, indicates the characteristic is one that is NOT held by members of the

       group."/> 
      <comment value="This is labeled as &quot;Is Modifier&quot; because applications cannot wrongly

       include excluded members as included or vice versa."/> 
      <requirements value="Sometimes group membership is determined by characteristics not possessed."/>       <min value="1"/>       <max value="1"/>       <base>         <path value="Group.characteristic.exclude"/>         <min value="1"/>         <max value="1"/>       </base>       <type>         <code value="boolean"/>       </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="rim"/>         <map value="./valueNegationInd"/>       </mapping>     </element>     <element id="Group.characteristic.period">      <path value="Group.characteristic.period"/>       <short value="Period over which characteristic is tested"/> 
      <definition value="The period over which the characteristic is tested; e.g. the patient had an operation
       during the month of June.
      
      
      
        
        
        
      
      
        
      
      
        
        
        
        
        
        
      
      
      
    
    
      
      
      
      
      
      
      
        
        
        
      
      
        
      
      
      
        
        
        
        
        
        
      
      
      
      
        
        
      
    
    
      
      
      
      Unique id for the element within a resource (for internal references). This may be any
       string value that does not contain spaces.
      
      
      
        
        
        
      
    <!--  Note: special primitive values have a FHIRPath system type. e.g. this is compiler magic
       (j)  -->
      
        
          
        
        
      
      
      
      
        
        
      
    
    
      
      

       during the month of June."/> 
      <min value="0"/>       <max value="1"/>       <base>         <path value="Group.characteristic.period"/>         <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="false"/>     </element>     <element id="Group.member">      <path value="Group.member"/>       <short value="Who or what is in group"/>       <definition value="Identifies the resource instances that are members of the group."/>       <requirements value="Often the only thing of interest about a group is &quot;who's in it&quot;."/>       <min value="0"/>       <max value="*"/>       <base>         <path value="Group.member"/>         <min value="0"/>         <max value="*"/>       </base>       <type>         <code value="BackboneElement"/>       </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.subject[x]"/>       </mapping>       <mapping>         <identity value="rim"/>         <map value="./scopedRole[isNormalRole() and classCode=&quot;MBR&quot;]/player"/>       </mapping>     </element>     <element id="Group.member.id">      <path value="Group.member.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="Group.member.extension">      <path value="Group.member.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. 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
       can 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>       <constraint>         <key value="ext-1"/>         <severity value="error"/>         <human value="Must have either extensions or value[x], not both"/>         <expression value="extension.exists() != value.exists()"/>         <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>       </constraint>       <isModifier value="false"/>       <isSummary value="false"/>       <mapping>         <identity value="rim"/>         <map value="n/a"/>       </mapping>     </element>     <element id="Group.member.modifierExtension">      <path value="Group.member.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 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 manageable,
       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).
      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.
      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.ht
      ml#modifierExtension).
      
      
      
      
      
      
        
        
        
      
      
        
      
      
        
        
        
        
        
        
      
      
        
        
        
        
        
        
      
      
      Modifier extensions are expected to modify the meaning or interpretation of the element
       that contains them
      
      
        
        
      
    
    
      
      
      A reference to the entity that is a member of the group. Must be consistent with Group.type.
       If the entity is another group, then the type must be the same.
      
      
      
        
        
        
      
      
        
        
        
        
        
        
        
        
      
      
        
        
        
        
        
        
      
      
      
    
    
      
      
      
      
      
      
      
        
        
        
      
      
        
      
      
      
        
        
        
        
        
        
      
      
      
    
    
      
      
      A flag to indicate that the member is no longer in the group, but previously may have
       been a member.
      
      
      
      
        
        
        
      
      
        
      
      
      
        
        
        
        
        
        
      
      
      
    
  
  
    
      
      
      Represents a defined collection of entities that may be discussed or acted upon collectively
       but which are not expected to act collectively, and are not formally or legally recognized;
       i.e. a collection of entities that isn't an Organization.
      If both Group.characteristic and Group.member are present, then the members are the individuals
       who were found who met the characteristic.  It's possible that there might be other candidate
       members who meet the characteristic and aren't (yet) in the list.  All members SHALL have
       the listed characteristics.
      
      
      
        
        
        
        
        
      
      
        
        
      
    
    
      
      
      
      
      
      
      
        
      
      
      
        
        
      
      
        
        
      
    
    
      
      
      Indicates whether the record for the group is available for use or is merely being retained
       for historical purposes.
      Need to be able to mark a group record as not to be used because it was created in error
       or is otherwise no longer available (e.g. a herd that no longer exists).
      
      
      
        
      
      This resource is generally assumed to be active if no value is provided for the active
       element
      
      
        
        
      
      
        
        
      
    
    
      
      
      
      Group members SHALL be of the appropriate resource type (Patient for person or animal;
       or Practitioner, Device, Medication or Substance for the other types.).
      
      
      
      
        
      
      
      
        
          
        
        
        
        
      
      
        
        
      
      
        
        person: ./classCode=&quot;PSN&quot;  animal: ./classCode=&quot;ANM&quot;  device: ./classCode=&quot;
        DEV&quot;  medication: ./classCode=&quot;MMAT&quot; and ./playedRole[isNormalRole() and
         classCode=&quot;THER&quot;]  food: ./classCode=&quot;FOOD&quot;
      
    
    
      
      
      If true, indicates that the resource refers to a specific group of real individuals. 
       If false, the group defines a set of intended individuals.
      There are use-cases for groups that define specific collections of individuals, and other
       groups that define &quot;types&quot; of intended individuals.  The requirements for both
       kinds of groups are similar, so we use a single resource, distinguished by this flag.
      
      
      
        
      
      
      
      
        
        
      
      
        
        
      
    
    
      
      
      Provides a specific type of resource the group includes; e.g. &quot;cow&quot;, &quot;syringe&quot;,
       etc.
      
      
      
      
        
      
      
      
        
          
        
        
        
      
      
        
        
      
      
        
        
      
    
    
      
      
      
      
      
      
      
        
      
      
      
        
        
      
    
    
      
      
      
      Note that the quantity may be less than the number of members if some of the members are
       not active.
      
      
      
      
        
      
      
      
        
        
      
    
    
      
      

       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>       <constraint>         <key value="ext-1"/>         <severity value="error"/>         <human value="Must have either extensions or value[x], not both"/>         <expression value="extension.exists() != value.exists()"/>         <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>       </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="Group.member.entity">      <path value="Group.member.entity"/>       <short value="Reference to the group member"/>       <definition value="A reference to the entity that is a member of the group. Must be consistent with

       Group.type. If the entity is another group, then the type must be the same."/> 
      <min value="1"/>       <max value="1"/>       <base>         <path value="Group.member.entity"/>         <min value="1"/>         <max value="1"/>       </base>       <type>         <code value="Reference"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/CareTeam"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/Device"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/Group"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/HealthcareService"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/Location"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/Organization"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/Patient"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/Practitioner"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/PractitionerRole"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/RelatedPerson"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/Specimen"/>       </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="Group.member.period">      <path value="Group.member.period"/>       <short value="Period member belonged to the group"/>       <definition value="The period that the member was in the group, if known."/>       <requirements value="Need to track who was in a group at a  particular time."/>       <min value="0"/>       <max value="1"/>       <base>         <path value="Group.member.period"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="Period"/>       </type>       <meaningWhenMissing value="The member is in the group at this time"/>       <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="Group.member.inactive">      <path value="Group.member.inactive"/>       <short value="If member is no longer in group"/>       <definition value="A flag to indicate that the member is no longer in the group, but previously may

       have been a member."/> 
      <requirements value="Sometimes you don't know when someone stopped being in a group, but not when."/>       <min value="0"/>       <max value="1"/>       <base>         <path value="Group.member.inactive"/>         <min value="0"/>         <max value="1"/>       </base>       <type>         <code value="boolean"/>       </type>       <meaningWhenMissing value="Members are considered active unless explicitly specified otherwise"/>       <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="Group">      <path value="Group"/>       <short value="Group of multiple entities"/>       <definition value="Represents a defined collection of entities that may be discussed or acted upon

       collectively but which are not expected to act collectively, and are not formally
       or legally recognized; i.e. a collection of entities that isn't an Organization."/> 
      <comment value="If both Group.characteristic and Group.member are present, then the members are

       the individuals who were found who met the characteristic.  It's possible that
       there might be other candidate members who meet the characteristic and aren't (yet)
       in the list.  All members SHALL have the listed characteristics."/> 
      <min value="0"/>       <max value="*"/>       <mustSupport value="false"/>       <isModifier value="false"/>       <mapping>         <identity value="w5"/>         <map value="administrative.group"/>       </mapping>       <mapping>         <identity value="rim"/>         <map value="Entity[determinerCode=&quot;GRP&quot; or determinerCode=&quot;GRP_KIND&quot;]"/>       </mapping>       <mapping>         <identity value="interface"/>         <map value="Participant"/>       </mapping>     </element>     <element id="Group.identifier">      <path value="Group.identifier"/>       <short value="Business Identifier for this Group"/>       <definition value="Business identifiers assigned to this participant by one of the applications involved.

        These identifiers remain constant as the resource is updated and propagates from
       server to server."/> 
      <comment value="Note: This is a business identifier, not a resource identifier (see [discussion](resource.htm

      l#identifiers)).  It is best practice for the identifier to only appear on a single
       resource instance, however business practices may occasionally dictate that multiple
       resource instances with the same identifier can exist - possibly even with different
       resource types."/> 
      <requirements value="Allows identification of the group as it is known by various participating systems

       and in a way that remains consistent across servers."/> 
      <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="rim"/>         <map value="unique(./id[displayable=&quot;true&quot; and scope=&quot;OBJ&quot;])"/>       </mapping>       <mapping>         <identity value="interface"/>         <map value="Participant.identifier"/>       </mapping>     </element>     <element id="Group.active">      <path value="Group.active"/>       <short value="Whether this group's record is in active use"/>       <definition value="Indicates whether the record for the group is available for use or is merely being

       retained for historical purposes."/> 
      <requirements value="Need to be able to mark a group record as not to be used because it was created

       in error or is otherwise no longer available (e.g. a herd that no longer exists)."/> 
      <min value="0"/>       <max value="1"/>       <type>         <code value="boolean"/>       </type>       <meaningWhenMissing value="This resource is generally assumed to be active if no value is provided for the

       active element"/> 
      <mustSupport value="false"/>       <isModifier value="true"/>       <isModifierReason value="This element is labelled as a modifier because it is a status element that can

       indicate that a record should not be treated as valid"/> 
      <isSummary value="true"/>       <mapping>         <identity value="w5"/>         <map value="FiveWs.status"/>       </mapping>       <mapping>         <identity value="rim"/>         <map value="./statusCode"/>       </mapping>       <mapping>         <identity value="interface"/>         <map value="Participant.active"/>       </mapping>     </element>     <element id="Group.type">      <path value="Group.type"/>       <short value="person | animal | practitioner | device | careteam | healthcareservice | location

       | organization | relatedperson | specimen"/> 
      <definition value="Identifies the broad classification of the kind of resources the group includes."/>       <comment value="Group members SHALL be of the appropriate resource type (Patient for person or

       animal; or Practitioner, PractitionerRole, Device, CareTeam, HealthcareService,
       Location, Organization, RelatedPerson, or Specimen for the other types.), or a
       Group of the resources of the appropriate type."/> 
      <requirements value="Identifies what type of resources the group is made up of."/>       <min value="1"/>       <max value="1"/>       <type>         <code value="code"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <binding>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">          <valueString value="GroupType"/>         </extension>         <strength value="required"/>         <description value="Types of resources that are part of group."/>         <valueSet value="http://hl7.org/fhir/ValueSet/group-type|5.0.0"/>       </binding>       <mapping>         <identity value="w5"/>         <map value="FiveWs.class"/>       </mapping>       <mapping>         <identity value="rim"/>         <map value="person: ./classCode=&quot;PSN&quot;  animal: ./classCode=&quot;ANM&quot;  device:

         ./classCode=&quot;DEV&quot;  medication: ./classCode=&quot;MMAT&quot; and ./playedRole[isNorm
        alRole() and classCode=&quot;THER&quot;]  food: ./classCode=&quot;FOOD&quot;"/> 
      </mapping>     </element>     <element id="Group.membership">      <path value="Group.membership"/>       <short value="definitional | enumerated"/>       <definition value="Basis for membership in the Group:
* 'definitional': The Group.characteristics specified are both necessary and sufficient
       to determine membership. All entities that meet the criteria are considered to
       be members of the group, whether referenced by the group or not. If members are
       present, they are individuals that happen to be known as meeting the Group.characteristics.
       The list cannot be presumed to be complete.
* 'enumerated': The Group.characteristics are necessary but not sufficient to determine
       membership. Membership is determined by being listed as one of the Group.member."/> 
      <requirements value="There are use-cases for groups that define specific collections of individuals,

       and other groups that define &quot;types&quot; of intended individuals.  The requirements
       for both kinds of groups are similar, so we use a single resource, distinguished
       by this element."/> 
      <min value="1"/>       <max value="1"/>       <type>         <code value="code"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <binding>         <strength value="required"/>         <description value="The basis for membership in a group"/>         <valueSet value="http://hl7.org/fhir/ValueSet/group-membership-basis|5.0.0"/>       </binding>     </element>     <element id="Group.code">      <path value="Group.code"/>       <short value="Kind of Group members"/>       <definition value="Provides a specific type of resource the group includes; e.g. &quot;cow&quot;,

       &quot;syringe&quot;, etc."/> 
      <comment value="This would generally be omitted for Person resources."/>       <min value="0"/>       <max value="1"/>       <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="GroupKind"/>         </extension>         <strength value="example"/>         <description value="Kind of particular resource; e.g. cow, syringe, lake, etc."/>       </binding>       <mapping>         <identity value="w5"/>         <map value="FiveWs.what[x]"/>       </mapping>       <mapping>         <identity value="rim"/>         <map value="./code"/>       </mapping>     </element>     <element id="Group.name">      <path value="Group.name"/>       <short value="Label for Group"/>       <definition value="A label assigned to the group for human identification and communication."/>       <requirements value="Used to identify the group in human communication."/>       <min value="0"/>       <max value="1"/>       <type>         <code value="string"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <mapping>         <identity value="rim"/>         <map value="./name[type=&quot;ST&quot;]"/>       </mapping>       <mapping>         <identity value="interface"/>         <map value="Participant.name"/>       </mapping>     </element>     <element id="Group.description">      <path value="Group.description"/>       <short value="Natural language description of the group"/>       <definition value="Explanation of what the group represents and how it is intended to be used."/>       <min value="0"/>       <max value="1"/>       <type>         <code value="markdown"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="Group.quantity">      <path value="Group.quantity"/>       <short value="Number of members"/>       <definition value="A count of the number of resource instances that are part of the group."/>       <comment value="Note that the quantity may be less than the number of members if some of the members

       are not active."/> 
      <requirements value="Group size is a common defining characteristic."/>       <min value="0"/>       <max value="1"/>       <type>         <code value="unsignedInt"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <mapping>         <identity value="rim"/>         <map value="./quantity"/>       </mapping>     </element>     <element id="Group.managingEntity">      <path value="Group.managingEntity"/>       <short value="Entity that is the custodian of the Group's definition"/> 
      <definition value="Entity responsible for defining and maintaining Group characteristics and/or registered
       members.
      This does not strictly align with ownership of a herd or flock, but may suffice to represent
       that relationship in simple cases. More complex cases will require an extension.
      
      
      
        
        
        
        
        
      
      
    
    
      
      
      
      
      
      
      
      
        
      
      
        
        ./playedRole[isNormalRole()]/participation[isNormalParticipation() and typeCode=&quot;SBJ&quot;]/act
        [isNormalAct and classCode=&quot;OBS&quot; and moodCode=&quot;EVN&quot;]
      
    
    
      
      
      
      
      
      
      
        
      
      
        
          
        
        
        List of characteristics used to describe group members; e.g. gender, age, owner, location,
         etc.
      
      
        
        
      
    
    
      
      
      The value of the trait that holds (or does not hold - see 'exclude') for members of the
       group.
      For Range, it means members of the group have a value that falls somewhere within the
       specified range.
      
      
      
      
        
      
      
        
      
      
        
      
      
        
      
      
        
      
      
        
          
        
        
        
      
      
        
        
      
    
    
      
      
      
      This is labeled as &quot;Is Modifier&quot; because applications cannot wrongly include
       excluded members as included or vice versa.
      
      
      
      
        
      
      
        
        
      
    
    
      
      

       members."/> 
      <comment value="This does not strictly align with ownership of a herd or flock, but may suffice

       to represent that relationship in simple cases. More complex cases will require
       an extension."/> 
      <min value="0"/>       <max value="1"/>       <type>         <code value="Reference"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/Organization"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/RelatedPerson"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/Practitioner"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/PractitionerRole"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <mapping>         <identity value="w5"/>         <map value="FiveWs.witness"/>       </mapping>     </element>     <element id="Group.characteristic">      <path value="Group.characteristic"/>       <short value="Include / Exclude group members by Trait"/>       <definition value="Identifies traits whose presence r absence is shared by members of the group."/>       <comment value="All the identified characteristics must be true for an entity to a member of the

       group."/> 
      <requirements value="Needs to be a generic mechanism for identifying what individuals can be part of

       a group."/> 
      <min value="0"/>       <max value="*"/>       <type>         <code value="BackboneElement"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <mapping>         <identity value="rim"/>         <map value="./playedRole[isNormalRole()]/participation[isNormalParticipation() and typeCode=&quot;SBJ&quo

        t;]/act[isNormalAct and classCode=&quot;OBS&quot; and moodCode=&quot;EVN&quot;]"/> 
      </mapping>     </element>     <element id="Group.characteristic.code">      <path value="Group.characteristic.code"/>       <short value="Kind of characteristic"/>       <definition value="A code that identifies the kind of trait being asserted."/>       <requirements value="Need a formal way of identifying the characteristic being described."/>       <min value="1"/>       <max value="1"/>       <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="GroupCharacteristicKind"/>         </extension>         <strength value="example"/>         <description value="List of characteristics used to describe group members; e.g. gender, age, owner,

         location, etc."/> 
      </binding>       <mapping>         <identity value="rim"/>         <map value="./code"/>       </mapping>     </element>     <element id="Group.characteristic.value[x]">      <path value="Group.characteristic.value[x]"/>       <short value="Value held by characteristic"/>       <definition value="The value of the trait that holds (or does not hold - see 'exclude') for members

       of the group."/> 
      <comment value="For Range, it means members of the group have a value that falls somewhere within

       the specified range."/> 
      <requirements value="The value of the characteristic is what determines group membership."/>       <min value="1"/>       <max value="1"/>       <type>         <code value="CodeableConcept"/>       </type>       <type>         <code value="boolean"/>       </type>       <type>         <code value="Quantity"/>       </type>       <type>         <code value="Range"/>       </type>       <type>         <code value="Reference"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <binding>         <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">          <valueString value="GroupCharacteristicValue"/>         </extension>         <strength value="example"/>         <description value="Value of descriptive member characteristic; e.g. red, male, pneumonia, Caucasian,

         etc."/> 
      </binding>       <mapping>         <identity value="rim"/>         <map value="./value"/>       </mapping>     </element>     <element id="Group.characteristic.exclude">      <path value="Group.characteristic.exclude"/>       <short value="Group includes or excludes"/>       <definition value="If true, indicates the characteristic is one that is NOT held by members of the

       group."/> 
      <comment value="This is labeled as &quot;Is Modifier&quot; because applications cannot wrongly

       include excluded members as included or vice versa."/> 
      <requirements value="Sometimes group membership is determined by characteristics not possessed."/>       <min value="1"/>       <max value="1"/>       <type>         <code value="boolean"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="true"/>       <mapping>         <identity value="rim"/>         <map value="./valueNegationInd"/>       </mapping>     </element>     <element id="Group.characteristic.period">      <path value="Group.characteristic.period"/>       <short value="Period over which characteristic is tested"/> 
      <definition value="The period over which the characteristic is tested; e.g. the patient had an operation
       during the month of June.
      
      
      
        
      
    
    
      
      
      
      
      
      
      
        
      
      
      
        
        
      
    
    
      
      
      A reference to the entity that is a member of the group. Must be consistent with Group.type.
       If the entity is another group, then the type must be the same.
      
      
      
        
        
        
        
        
        
        
        
      
    
    
      
      
      
      
      
      
      
        
      
      
    
    
      
      
      A flag to indicate that the member is no longer in the group, but previously may have
       been a member.
      
      
      
      
        
      
      
    
  

       during the month of June."/> 
      <min value="0"/>       <max value="1"/>       <type>         <code value="Period"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="Group.member">      <path value="Group.member"/>       <short value="Who or what is in group"/>       <definition value="Identifies the resource instances that are members of the group."/>       <requirements value="Often the only thing of interest about a group is &quot;who's in it&quot;."/>       <min value="0"/>       <max value="*"/>       <type>         <code value="BackboneElement"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>       <mapping>         <identity value="w5"/>         <map value="FiveWs.subject[x]"/>       </mapping>       <mapping>         <identity value="rim"/>         <map value="./scopedRole[isNormalRole() and classCode=&quot;MBR&quot;]/player"/>       </mapping>     </element>     <element id="Group.member.entity">      <path value="Group.member.entity"/>       <short value="Reference to the group member"/>       <definition value="A reference to the entity that is a member of the group. Must be consistent with

       Group.type. If the entity is another group, then the type must be the same."/> 
      <min value="1"/>       <max value="1"/>       <type>         <code value="Reference"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/CareTeam"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/Device"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/Group"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/HealthcareService"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/Location"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/Organization"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/Patient"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/Practitioner"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/PractitionerRole"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/RelatedPerson"/>         <targetProfile value="http://hl7.org/fhir/StructureDefinition/Specimen"/>       </type>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="Group.member.period">      <path value="Group.member.period"/>       <short value="Period member belonged to the group"/>       <definition value="The period that the member was in the group, if known."/>       <requirements value="Need to track who was in a group at a  particular time."/>       <min value="0"/>       <max value="1"/>       <type>         <code value="Period"/>       </type>       <meaningWhenMissing value="The member is in the group at this time"/>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>     <element id="Group.member.inactive">      <path value="Group.member.inactive"/>       <short value="If member is no longer in group"/>       <definition value="A flag to indicate that the member is no longer in the group, but previously may

       have been a member."/> 
      <requirements value="Sometimes you don't know when someone stopped being in a group, but not when."/>       <min value="0"/>       <max value="1"/>       <type>         <code value="boolean"/>       </type>       <meaningWhenMissing value="Members are considered active unless explicitly specified otherwise"/>       <mustSupport value="false"/>       <isModifier value="false"/>       <isSummary value="false"/>     </element>   </differential> 


</

StructureDefinition

>



Usage note: every effort has been made to ensure that the examples are correct and useful, but they are not a normative part of the specification.