StructureDefinition for code

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

  
  
    
    
  
  
    
  
  
    
  
  
    
  
  
    
  
  
    
  
  
  
  
  
  
  
  
  
    
      
      
    
  
  
    
      
      
    
  

<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="code"/> 
  <text> 
    <status value="generated"/> 
    <div xmlns="http://www.w3.org/1999/xhtml">to do</div> 
  </text> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
    <valueCode value="normative"/> 
  </extension> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version">
    <valueCode value="4.0.0"/> 
  </extension> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-type-characteristics">
    <valueCode value="can-bind"/> 
  </extension> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-type-characteristics">
    <valueCode value="has-length"/> 
  </extension> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="fhir"/> 
  </extension> 
  <url value="http://hl7.org/fhir/StructureDefinition/code"/> 
  <version value="6.0.0-ballot4"/> 
  <name value="code"/> 
  <status value="active"/> 
  <experimental value="false"/> 
  <date value="2025-12-18T07:07:42+11:00"/> 
  <publisher value="HL7 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"/> 
    </telecom> 
  </contact> 
  <description value="code type: A string which has at least one character and no leading or trailing
   whitespace and where there is no whitespace other than single spaces in the contents
  
    
      
      
      
    
  
  
  
  
  
  
  
  
    
      
      

   whitespace and where there is no whitespace other than single spaces in the contents"/> 
  <jurisdiction> 
    <coding> 
      <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/> 
      <code value="001"/> 
      <display value="World"/> 
    </coding> 
  </jurisdiction> 
  <fhirVersion value="6.0.0-ballot4"/> 
  <kind value="primitive-type"/> 
  <abstract value="false"/> 
  <type value="code"/> 
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/string"/> 
  <derivation value="specialization"/> 
  <snapshot> 
    <element id="code">
      <path value="code"/> 
      <short value="Primitive Type code"/> 
      <definition value="A string which has at least one character and no leading or trailing whitespace
       and where there is no whitespace other than single spaces in the contents
      
      
      
        
        
        
      
      
        
        
        
        
        
      
      
      
    
    
      
      
      
      
      
      
      
        
        
        
      

       and where there is no whitespace other than single spaces in the contents"/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="code"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children or both"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
    </element> 
    <element id="code.id">
      <path value="code.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)"/> 
      <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 (h)  -->
      
        
          
        
        
      
      
      
    
    
      
      

       magic (h)  -->
      <type> 
        <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string"/> 
        </extension> 
        <code value="http://hl7.org/fhirpath/System.String"/> 
      </type> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
    </element> 
    <element id="code.extension">
      <path value="code.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 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.

       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.
      
      
      
      
      
        
        
        
      
      
        
      
      
        
        
        
        
        
      
      
        
        
        
        
        
      
      
      
    
    
      
      
      
      
      
      
      
        
        
        
      

       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"/> 
    </element> 
    <element id="code.value">
      <path value="code.value"/> 
      <representation value="xmlAttr"/> 
      <short value="Primitive value for code"/> 
      <definition value="Primitive value for code"/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="string.value"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <!--  Note: special primitive values have a FHIRPath system type. e.g. this is compiler
       magic (i)  -->
      
        
          
        
        
          
        
        
      
      
      
    
  
  
    
      
      

       magic (i)  -->
      <type> 
        <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="code"/> 
        </extension> 
        <extension url="http://hl7.org/fhir/StructureDefinition/regex">
          <valueString value="[^\s]+( [^\s]+)*"/> 
        </extension> 
        <code value="http://hl7.org/fhirpath/System.String"/> 
      </type> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
    </element> 
  </snapshot> 
  <differential> 
    <element id="code">
      <path value="code"/> 
      <short value="Primitive Type code"/> 
      <definition value="A string which has at least one character and no leading or trailing whitespace
       and where there is no whitespace other than single spaces in the contents
      
      
    
    
      
      
      
      
      
      

       and where there is no whitespace other than single spaces in the contents"/> 
      <min value="0"/> 
      <max value="*"/> 
    </element> 
    <element id="code.value">
      <path value="code.value"/> 
      <representation value="xmlAttr"/> 
      <short value="Primitive value for code"/> 
      <definition value="Primitive value for code"/> 
      <min value="0"/> 
      <max value="1"/> 
      <!--  Note: special primitive values have a FHIRPath system type. e.g. this is compiler
       magic (g)  -->
      
        
          
        
        
          
        
        
      
    
  

       magic (g)  -->
      <type> 
        <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="code"/> 
        </extension> 
        <extension url="http://hl7.org/fhir/StructureDefinition/regex">
          <valueString value="[^\s]+( [^\s]+)*"/> 
        </extension> 
        <code value="http://hl7.org/fhirpath/System.String"/> 
      </type> 
    </element> 
  </differential> 


</

StructureDefinition

>