DSTU2 FHIR Release 3 (STU)

This page is part of the FHIR Specification (v1.0.2: DSTU (v3.0.2: STU 2). 3). 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 R3 R2

Coding.profile.xml

Modeling and Methodology Work Group Maturity Level : N/A Ballot Status : Informative

Raw XML ( canonical form )

StructureDefinition for Coding 


  
  
    
    
      
        
          
            
          
          
            
          
          
            
          
          
            
          
          
            
            
              
                
              
            
          
        
        
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<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="Coding"/> 
  <text> 
    <status value="generated"/> 
    <div xmlns="http://www.w3.org/1999/xhtml">
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          <th class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;
           padding:0px 4px 0px 4px">
            <a href="formats.html#table" 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="formats.html#table" 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="formats.html#table" 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="formats.html#table" 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="formats.html#table" title="Additional information about the element">Description &amp; Constraints</a> 
            <span style="float: right">
              <a href="formats.html#table" title="Legend for this format">
                <img alt="doco" src="help16.png" style="background-color: inherit"/> 
              </a> 
            </span> 
          </th> 
        </tr> 
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            FEhIdcAYJdYASFRUQhQkLCwkOFwcdEBAXhVabE52ecDahKy0oIQA7" style="background-color: white; background-color: inherit" title="Element"/>  
            <a href="datatypes-definitions.html#Coding" title="Coding : A reference to a code defined by a terminology system.">Coding</a> 
            <a name="Coding"> </a> 
          </td> 
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;

           padding:0px 4px 0px 4px">
            <span style="padding: 3px" title="This element is included in summaries">Σ</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">
            <a href="element.html">Element</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 reference to a code defined by a terminology system
            <br/>  Elements defined in Ancestors: 
            <a href="element.html#Element" title="unique id for the element within a resource (for internal references). This may be any

             string value that does not contain spaces.">id</a> , 
            <a href="element.html#Element" title="May be used to represent additional information that is not part of the basic definition

             of the element. In order to make the use of extensions safe and manageable, there is a
             strict set of governance  applied to the definition and use of extensions. Though any
             implementer is allowed to define an extension, there is a set of requirements that SHALL
             be met as part of the definition of the extension.">extension</a> 
          </td> 
        </tr> 

        
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            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC 
            Coding.system : The identification of the code system that defines the meaning of the
             symbol in the code.
            
          
          
            
          
          
          
            
          
          
        

            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" style="background-color: white; background-color: inherit" title="Primitive Data Type"/>  
            <a href="datatypes-definitions.html#Coding.system" title="Coding.system : The identification of the code system that defines the meaning of the

             symbol in the code.">system</a> 
            <a name="Coding.system"> </a> 
          </td> 
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;

           padding:0px 4px 0px 4px">
            <span style="padding: 3px" title="This element is included in summaries">Σ</span> 
          </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#uri">uri</a> 
          </td> 
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;

           padding:0px 4px 0px 4px">Identity of the terminology system</td> 
        </tr> 

        
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            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC 
            Coding.version : The version of the code system which was used when choosing this code.

            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" style="background-color: white; background-color: inherit" title="Primitive Data Type"/>  
            <a href="datatypes-definitions.html#Coding.version" title="Coding.version : The version of the code system which was used when choosing this code.
             Note that a well-maintained code system does not need the version reported, because the
             meaning of codes is consistent across versions. However this cannot consistently be assured.
             and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.
            
          
          
            
          
          
          
            
          
          
        

             and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.">version</a> 
            <a name="Coding.version"> </a> 
          </td> 
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;

           padding:0px 4px 0px 4px">
            <span style="padding: 3px" title="This element is included in summaries">Σ</span> 
          </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">Version of the system - if relevant</td> 
        </tr> 

        
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            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC 
            Coding.code : A symbol in syntax defined by the system. The symbol may be a predefined
             code or an expression in a syntax defined by the coding system (e.g. post-coordination).
            
          
          
            
          
          
          
            
          
          
        

            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" style="background-color: white; background-color: inherit" title="Primitive Data Type"/>  
            <a href="datatypes-definitions.html#Coding.code" title="Coding.code : A symbol in syntax defined by the system. The symbol may be a predefined

             code or an expression in a syntax defined by the coding system (e.g. post-coordination).">code</a> 
            <a name="Coding.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">
            <span style="padding: 3px" title="This element is included in summaries">Σ</span> 
          </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#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">Symbol in syntax defined by the system</td> 
        </tr> 

        
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          sPVYVAgIJrA/sAAAAASUVORK5CYII=)">
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAw
            NdCABMPwMo2ctnoQAAAABJRU5ErkJggg==
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB

            NdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" style="background-color: inherit"/> 
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav
            7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIW

            7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" style="background-color: inherit"/> 
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIW
            XMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i
            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC 
            Coding.display : A representation of the meaning of the code in the system, following
             the rules of the system.
            
          
          
            
          
          
          
            
          
          
        

            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" style="background-color: white; background-color: inherit" title="Primitive Data Type"/>  
            <a href="datatypes-definitions.html#Coding.display" title="Coding.display : A representation of the meaning of the code in the system, following

             the rules of the system.">display</a> 
            <a name="Coding.display"> </a> 
          </td> 
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;

           padding:0px 4px 0px 4px">
            <span style="padding: 3px" title="This element is included in summaries">Σ</span> 
          </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">Representation defined by the system</td> 
        </tr> 

        
          vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
           white-space: nowrap; background-image: url(data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCA
          YAAACg/LjIAAAAI0lEQVR42u3QIQEAAAACIL/6/4MvTAQOkLYBAAB4kAAAANwMad9AqkRjgNAAAAAASUVORK5CYII=)
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB

        <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;base64,iVBORw0KG
          goAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAI0lEQVR42u3QIQEAAAACIL/6/4MvTAQOkLYBAAB4kAAAANwMad9AqkRjgNAAAA
          AASUVORK5CYII=)">
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAw
            NdCABMPwMo2ctnoQAAAABJRU5ErkJggg==
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB

            NdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" style="background-color: inherit"/> 
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzME+lXFigAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+3OsRUAIAjEUO
            L+O8cJABttJM11/x1qZAGqRBEVcNIqdWj1efDqQbb3HwwwwEfABmQUHSPM9dtDAAAAAElFTkSuQmCC
            data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIW

            L+O8cJABttJM11/x1qZAGqRBEVcNIqdWj1efDqQbb3HwwwwEfABmQUHSPM9dtDAAAAAElFTkSuQmCC" style="background-color: inherit"/> 
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIW
            XMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i
            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC 
            Coding.userSelected : Indicates that this coding was chosen by a user directly - i.e.
             off a pick list of available items (codes or displays).
            
          
          
            
          
          
          
            
          
          
        

            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" style="background-color: white; background-color: inherit" title="Primitive Data Type"/>  
            <a href="datatypes-definitions.html#Coding.userSelected" title="Coding.userSelected : Indicates that this coding was chosen by a user directly - i.e.

             off a pick list of available items (codes or displays).">userSelected</a> 
            <a name="Coding.userSelected"> </a> 
          </td> 
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid;

           padding:0px 4px 0px 4px">
            <span style="padding: 3px" title="This element is included in summaries">Σ</span> 
          </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">If this coding was chosen directly by the user</td> 
        </tr> 

        
          
            
            
               Documentation for this format
            
          
        
      
    
  
  
  
  
  
  
    
      
      
    
  
  
  
  
  
  
    
    
    
  
  
    
    
    
  
  
    
    
    
  
  
  
  
  
    
      
      
      
      Codes may be defined very casually in enumerations or code lists, up to very formal definitions
       such as SNOMED CT - see the HL7 v3 Core Principles for more information.
      
      
      
        
      
      
      
        
        
      
      
        
        
      
      
        
        
      
    
    
      
      
      
      
      
      
      
        
      
      
        
        
      
    
    
      
      
      May be used to represent additional information that is not part of the basic definition

        <tr> 
          <td class="hierarchy" colspan="5">
            <br/>  
            <a href="formats.html#table" title="Legend for this format">
              <img alt="doco" src="help16.png" style="background-color: inherit"/>  Documentation for this format
            </a> 
          </td> 
        </tr> 
      </table> 
    </div> 
  </text> 
  <url value="http://hl7.org/fhir/StructureDefinition/Coding"/> 
  <name value="Coding"/> 
  <status value="draft"/> 
  <date value="2019-10-24T11:53:00+11:00"/> 
  <publisher value="HL7 FHIR Standard"/> 
  <contact> 
    <telecom> 
      <system value="url"/> 
      <value value="http://hl7.org/fhir"/> 
    </telecom> 
  </contact> 
  <description value="Base StructureDefinition for Coding Type"/> 
  <purpose value="References to codes are very common in healthcare models."/> 
  <fhirVersion value="3.0.2"/> 
  <mapping> 
    <identity value="v2"/> 
    <uri value="http://hl7.org/v2"/> 
    <name value="HL7 v2 Mapping"/> 
  </mapping> 
  <mapping> 
    <identity value="rim"/> 
    <uri value="http://hl7.org/v3"/> 
    <name value="RIM Mapping"/> 
  </mapping> 
  <mapping> 
    <identity value="orim"/> 
    <uri value="http://hl7.org/orim"/> 
    <name value="Ontological RIM Mapping"/> 
  </mapping> 
  <kind value="complex-type"/> 
  <abstract value="false"/> 
  <type value="Coding"/> 
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Element"/> 
  <derivation value="specialization"/> 
  <snapshot> 
    <element id="Coding">
      <path value="Coding"/> 
      <short value="A reference to a code defined by a terminology system"/> 
      <definition value="A reference to a code defined by a terminology system."/> 
      <comment value="Codes may be defined very casually in enumerations or code lists, up to very formal definitions
       such as SNOMED CT - see the HL7 v3 Core Principles for more information."/> 
      <min value="0"/> 
      <max value="*"/> 
      <condition value="ele-1"/> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() | (children().count() &gt; id.count())"/> 
        <xpath value="@value|f:*|h:div"/> 
        <source value="Element"/> 
      </constraint> 
      <mapping> 
        <identity value="rim"/> 
        <map value="n/a"/> 
      </mapping> 
      <mapping> 
        <identity value="v2"/> 
        <map value="CE/CNE/CWE subset one of the sets of component 1-3 or 4-6"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="CV"/> 
      </mapping> 
      <mapping> 
        <identity value="orim"/> 
        <map value="fhir:Coding rdfs:subClassOf dt:CDCoding"/> 
      </mapping> 
    </element> 
    <element id="Coding.id">
      <path value="Coding.id"/> 
      <representation value="xmlAttr"/> 
      <short value="xml:id (or equivalent in JSON)"/> 
      <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> 
      <type> 
        <code value="string"/> 
      </type> 
      <mapping> 
        <identity value="rim"/> 
        <map value="n/a"/> 
      </mapping> 
    </element> 
    <element id="Coding.extension">
      <path value="Coding.extension"/> 
      <slicing> 
        <discriminator> 
          <type value="value"/> 
          <path value="url"/> 
        </discriminator> 
        <description value="Extensions are always sliced by (at least) url"/> 
        <rules value="open"/> 
      </slicing> 
      <short value="Additional Content defined by implementations"/> 
      <definition value="May be used to represent additional information that is not part of the basic definition
       of the element. In order to make the use of extensions safe and manageable, there is a
       strict set of governance  applied to the definition and use of extensions. Though any
       implementer is allowed to define an extension, there is a set of requirements that SHALL
       be met as part of the definition of the extension.
      There can be no stigma associated with the use of extensions by any application, project,

       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.
      
      
      
      
      
        
      
      
        
        
      
    
    
      
      
      
      The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...).  OIDs and UUIDs SHALL be

       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> 
      <mapping> 
        <identity value="rim"/> 
        <map value="n/a"/> 
      </mapping> 
    </element> 
    <element id="Coding.system">
      <path value="Coding.system"/> 
      <short value="Identity of the terminology system"/> 
      <definition value="The identification of the code system that defines the meaning of the symbol in the code."/> 
      <comment value="The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...).  OIDs and UUIDs SHALL be
       references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of
       FHIR defined special URIs or it should de-reference to some definition that establish
       the system clearly and unambiguously.
      
      
      
      
        
      
      
      
        
        
      
      
        
        
      
      
        
        
      
    
    
      
      
      The version of the code system which was used when choosing this code. Note that a well-maintained

       the system clearly and unambiguously."/> 
      <requirements value="Need to be unambiguous about the source of the definition of the symbol."/> 
      <min value="0"/> 
      <max value="1"/> 
      <type> 
        <code value="uri"/> 
      </type> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="v2"/> 
        <map value="C*E.3"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="./codeSystem"/> 
      </mapping> 
      <mapping> 
        <identity value="orim"/> 
        <map value="fhir:Coding.system rdfs:subPropertyOf dt:CDCoding.codeSystem"/> 
      </mapping> 
    </element> 
    <element id="Coding.version">
      <path value="Coding.version"/> 
      <short value="Version of the system - if relevant"/> 
      <definition value="The version of the code system which was used when choosing this code. Note that a well-maintained
       code system does not need the version reported, because the meaning of codes is consistent
       across versions. However this cannot consistently be assured. and when the meaning is
       not guaranteed to be consistent, the version SHOULD be exchanged.
      Where the terminology does not clearly define what string should be used to identify code

       not guaranteed to be consistent, the version SHOULD be exchanged."/> 
      <comment value="Where the terminology does not clearly define what string should be used to identify code
       system versions, the recommendation is to use the date (expressed in FHIR date format)
       on which that version was officially published as the version date.
      
      
      
        
      
      
      
        
        
      
      
        
        
      
      
        
        
      
    
    
      
      
      A symbol in syntax defined by the system. The symbol may be a predefined code or an expression
       in a syntax defined by the coding system (e.g. post-coordination).
      
      
      
      
        
      
      
      
        
        
      
      
        
        
      
      
        
        
      
    
    
      
      
      A representation of the meaning of the code in the system, following the rules of the
       system.
      Need to be able to carry a human-readable meaning of the code for readers that do not
       know  the system.
      
      
      
        
      
      
      
        
        
      
      
        
        
      
      
        
        
      
    
    
      
      
      Indicates that this coding was chosen by a user directly - i.e. off a pick list of available
       items (codes or displays).
      Amongst a set of alternatives, a directly chosen code is the most appropriate starting

       on which that version was officially published as the version date."/> 
      <min value="0"/> 
      <max value="1"/> 
      <type> 
        <code value="string"/> 
      </type> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="v2"/> 
        <map value="C*E.7"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="./codeSystemVersion"/> 
      </mapping> 
      <mapping> 
        <identity value="orim"/> 
        <map value="fhir:Coding.version rdfs:subPropertyOf dt:CDCoding.codeSystemVersion"/> 
      </mapping> 
    </element> 
    <element id="Coding.code">
      <path value="Coding.code"/> 
      <short value="Symbol in syntax defined by the system"/> 
      <definition value="A symbol in syntax defined by the system. The symbol may be a predefined code or an expression

       in a syntax defined by the coding system (e.g. post-coordination)."/> 
      <requirements value="Need to refer to a particular code in the system."/> 
      <min value="0"/> 
      <max value="1"/> 
      <type> 
        <code value="code"/> 
      </type> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="v2"/> 
        <map value="C*E.1"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="./code"/> 
      </mapping> 
      <mapping> 
        <identity value="orim"/> 
        <map value="fhir:Coding.code rdfs:subPropertyOf dt:CDCoding.code"/> 
      </mapping> 
    </element> 
    <element id="Coding.display">
      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
        <valueBoolean value="true"/> 
      </extension> 
      <path value="Coding.display"/> 
      <short value="Representation defined by the system"/> 
      <definition value="A representation of the meaning of the code in the system, following the rules of the

       system."/> 
      <requirements value="Need to be able to carry a human-readable meaning of the code for readers that do not

       know  the system."/> 
      <min value="0"/> 
      <max value="1"/> 
      <type> 
        <code value="string"/> 
      </type> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="v2"/> 
        <map value="C*E.2 - but note this is not well followed"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="CV.displayName"/> 
      </mapping> 
      <mapping> 
        <identity value="orim"/> 
        <map value="fhir:Coding.display rdfs:subPropertyOf dt:CDCoding.displayName"/> 
      </mapping> 
    </element> 
    <element id="Coding.userSelected">
      <path value="Coding.userSelected"/> 
      <short value="If this coding was chosen directly by the user"/> 
      <definition value="Indicates that this coding was chosen by a user directly - i.e. off a pick list of available

       items (codes or displays)."/> 
      <comment value="Amongst a set of alternatives, a directly chosen code is the most appropriate starting
       point for new translations. There is some ambiguity about what exactly 'directly chosen'
       implies, and trading partner agreement may be needed to clarify the use of this element
       and its consequences more completely.
      This has been identified as a clinical safety criterium - that this exact system/code

       and its consequences more completely."/> 
      <requirements value="This has been identified as a clinical safety criterium - that this exact system/code
       pair was chosen explicitly, rather than inferred by the system based on some rules or
       language processing.
      
      
      
        
      
      
      
        
        fhir:Coding.userSelected fhir:mapsTo dt:CDCoding.codingRationale. fhir:Coding.userSelected

       language processing."/> 
      <min value="0"/> 
      <max value="1"/> 
      <type> 
        <code value="boolean"/> 
      </type> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="v2"/> 
        <map value="Sometimes implied by being first"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="CD.codingRationale"/> 
      </mapping> 
      <mapping> 
        <identity value="orim"/> 
        <map value="fhir:Coding.userSelected fhir:mapsTo dt:CDCoding.codingRationale. fhir:Coding.userSelected
         fhir:hasMap fhir:Coding.userSelected.map. fhir:Coding.userSelected.map a fhir:Map;   fhir:target
         dt:CDCoding.codingRationale. fhir:Coding.userSelected\#true a [     fhir:source &quot;true&quot;;
             fhir:target dt:CDCoding.codingRationale\#O   ]
      
      
        
        
      
      
        
        
      
    
  
  
    
      
      
      
      Codes may be defined very casually in enumerations or code lists, up to very formal definitions
       such as SNOMED CT - see the HL7 v3 Core Principles for more information.
      
      
      
        
      
      
      
        
        
      
      
        
        
      
      
        
        
      
    
    
      
      
      
      The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...).  OIDs and UUIDs SHALL be

             fhir:target dt:CDCoding.codingRationale\#O   ]"/> 
      </mapping> 
    </element> 
  </snapshot> 
  <differential> 
    <element id="Coding">
      <path value="Coding"/> 
      <short value="A reference to a code defined by a terminology system"/> 
      <definition value="A reference to a code defined by a terminology system."/> 
      <comment value="Codes may be defined very casually in enumerations or code lists, up to very formal definitions

       such as SNOMED CT - see the HL7 v3 Core Principles for more information."/> 
      <min value="0"/> 
      <max value="*"/> 
      <mapping> 
        <identity value="v2"/> 
        <map value="CE/CNE/CWE subset one of the sets of component 1-3 or 4-6"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="CV"/> 
      </mapping> 
      <mapping> 
        <identity value="orim"/> 
        <map value="fhir:Coding rdfs:subClassOf dt:CDCoding"/> 
      </mapping> 
    </element> 
    <element id="Coding.system">
      <path value="Coding.system"/> 
      <short value="Identity of the terminology system"/> 
      <definition value="The identification of the code system that defines the meaning of the symbol in the code."/> 
      <comment value="The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...).  OIDs and UUIDs SHALL be
       references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of
       FHIR defined special URIs or it should de-reference to some definition that establish
       the system clearly and unambiguously.
      
      
      
      
        
      
      
      
        
        
      
      
        
        
      
      
        
        
      
    
    
      
      
      The version of the code system which was used when choosing this code. Note that a well-maintained

       the system clearly and unambiguously."/> 
      <requirements value="Need to be unambiguous about the source of the definition of the symbol."/> 
      <min value="0"/> 
      <max value="1"/> 
      <type> 
        <code value="uri"/> 
      </type> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="v2"/> 
        <map value="C*E.3"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="./codeSystem"/> 
      </mapping> 
      <mapping> 
        <identity value="orim"/> 
        <map value="fhir:Coding.system rdfs:subPropertyOf dt:CDCoding.codeSystem"/> 
      </mapping> 
    </element> 
    <element id="Coding.version">
      <path value="Coding.version"/> 
      <short value="Version of the system - if relevant"/> 
      <definition value="The version of the code system which was used when choosing this code. Note that a well-maintained
       code system does not need the version reported, because the meaning of codes is consistent
       across versions. However this cannot consistently be assured. and when the meaning is
       not guaranteed to be consistent, the version SHOULD be exchanged.
      Where the terminology does not clearly define what string should be used to identify code

       not guaranteed to be consistent, the version SHOULD be exchanged."/> 
      <comment value="Where the terminology does not clearly define what string should be used to identify code
       system versions, the recommendation is to use the date (expressed in FHIR date format)
       on which that version was officially published as the version date.
      
      
      
        
      
      
      
        
        
      
      
        
        
      
      
        
        
      
    
    
      
      
      A symbol in syntax defined by the system. The symbol may be a predefined code or an expression
       in a syntax defined by the coding system (e.g. post-coordination).
      
      
      
      
        
      
      
      
        
        
      
      
        
        
      
      
        
        
      
    
    
      
      
      A representation of the meaning of the code in the system, following the rules of the
       system.
      Need to be able to carry a human-readable meaning of the code for readers that do not
       know  the system.
      
      
      
        
      
      
      
        
        
      
      
        
        
      
      
        
        
      
    
    
      
      
      Indicates that this coding was chosen by a user directly - i.e. off a pick list of available
       items (codes or displays).
      Amongst a set of alternatives, a directly chosen code is the most appropriate starting

       on which that version was officially published as the version date."/> 
      <min value="0"/> 
      <max value="1"/> 
      <type> 
        <code value="string"/> 
      </type> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="v2"/> 
        <map value="C*E.7"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="./codeSystemVersion"/> 
      </mapping> 
      <mapping> 
        <identity value="orim"/> 
        <map value="fhir:Coding.version rdfs:subPropertyOf dt:CDCoding.codeSystemVersion"/> 
      </mapping> 
    </element> 
    <element id="Coding.code">
      <path value="Coding.code"/> 
      <short value="Symbol in syntax defined by the system"/> 
      <definition value="A symbol in syntax defined by the system. The symbol may be a predefined code or an expression

       in a syntax defined by the coding system (e.g. post-coordination)."/> 
      <requirements value="Need to refer to a particular code in the system."/> 
      <min value="0"/> 
      <max value="1"/> 
      <type> 
        <code value="code"/> 
      </type> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="v2"/> 
        <map value="C*E.1"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="./code"/> 
      </mapping> 
      <mapping> 
        <identity value="orim"/> 
        <map value="fhir:Coding.code rdfs:subPropertyOf dt:CDCoding.code"/> 
      </mapping> 
    </element> 
    <element id="Coding.display">
      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
        <valueBoolean value="true"/> 
      </extension> 
      <path value="Coding.display"/> 
      <short value="Representation defined by the system"/> 
      <definition value="A representation of the meaning of the code in the system, following the rules of the

       system."/> 
      <requirements value="Need to be able to carry a human-readable meaning of the code for readers that do not

       know  the system."/> 
      <min value="0"/> 
      <max value="1"/> 
      <type> 
        <code value="string"/> 
      </type> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="v2"/> 
        <map value="C*E.2 - but note this is not well followed"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="CV.displayName"/> 
      </mapping> 
      <mapping> 
        <identity value="orim"/> 
        <map value="fhir:Coding.display rdfs:subPropertyOf dt:CDCoding.displayName"/> 
      </mapping> 
    </element> 
    <element id="Coding.userSelected">
      <path value="Coding.userSelected"/> 
      <short value="If this coding was chosen directly by the user"/> 
      <definition value="Indicates that this coding was chosen by a user directly - i.e. off a pick list of available

       items (codes or displays)."/> 
      <comment value="Amongst a set of alternatives, a directly chosen code is the most appropriate starting
       point for new translations. There is some ambiguity about what exactly 'directly chosen'
       implies, and trading partner agreement may be needed to clarify the use of this element
       and its consequences more completely.
      This has been identified as a clinical safety criterium - that this exact system/code

       and its consequences more completely."/> 
      <requirements value="This has been identified as a clinical safety criterium - that this exact system/code
       pair was chosen explicitly, rather than inferred by the system based on some rules or
       language processing.
      
      
      
        
      
      
      
        
        fhir:Coding.userSelected fhir:mapsTo dt:CDCoding.codingRationale. fhir:Coding.userSelected

       language processing."/> 
      <min value="0"/> 
      <max value="1"/> 
      <type> 
        <code value="boolean"/> 
      </type> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="v2"/> 
        <map value="Sometimes implied by being first"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="CD.codingRationale"/> 
      </mapping> 
      <mapping> 
        <identity value="orim"/> 
        <map value="fhir:Coding.userSelected fhir:mapsTo dt:CDCoding.codingRationale. fhir:Coding.userSelected
         fhir:hasMap fhir:Coding.userSelected.map. fhir:Coding.userSelected.map a fhir:Map;   fhir:target
         dt:CDCoding.codingRationale. fhir:Coding.userSelected\#true a [     fhir:source &quot;true&quot;;
             fhir:target dt:CDCoding.codingRationale\#O   ]
      
      
        
        
      
      
        
        
      
    
  

             fhir:target dt:CDCoding.codingRationale\#O   ]"/> 
      </mapping> 
    </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.