Id.profile.xml

StructureDefinition for id

<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="id"/> 
  <text> 
    <status value="generated"/> 
    <div xmlns="http://www.w3.org/1999/xhtml">to do</div> 
  </text> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-ballot-status">
    <valueString value="Normative"/> 
  </extension> 
  <url value="http://hl7.org/fhir/StructureDefinition/id"/> 
  <name value="id"/> 
  <status value="draft"/> 
  <date value="2018-04-03T12:05:46+10:00"/> 
  <publisher value="HL7 FHIR Standard"/> 
  <contact> 
    <telecom> 
      <system value="url"/> 
      <value value="http://hl7.org/fhir"/> 
    </telecom> 
  </contact> 
  <description value="Base StructureDefinition for id type: Any combination of letters, numerals, &quot;-&quot;
   and &quot;.&quot;, with a length limit of 64 characters.  (This might be an integer, an
   unprefixed OID, UUID or any other identifier pattern that meets these constraints.)  Ids
   are case-insensitive."/> 
  <fhirVersion value="3.3.0"/> 
  <kind value="primitive-type"/> 
  <abstract value="false"/> 
  <type value="id"/> 
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/string"/> 
  <derivation value="specialization"/> 
  <snapshot> 
    <element id="id">
      <path value="id"/> 
      <short value="Primitive Type id"/> 
      <definition value="Any combination of letters, numerals, &quot;-&quot; and &quot;.&quot;, with a length limit
       of 64 characters.  (This might be an integer, an unprefixed OID, UUID or any other identifier
       pattern that meets these constraints.)  Ids are case-insensitive."/> 
      <comment value="RFC 4122"/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="id"/> 
        <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"/> 
        <expression value="hasValue() | (children().count() &gt; id.count())"/> 
        <xpath value="@value|f:*|h:div"/> 
        <source value="Element"/> 
      </constraint> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
    </element> 
    <element id="id.id">
      <path value="id.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> 
      <type> 
        <code value="string"/> 
      </type> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
    </element> 
    <element id="id.extension">
      <path value="id.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."/> 
      <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> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
    </element> 
    <element id="id.value">
      <path value="id.value"/> 
      <representation value="xmlAttr"/> 
      <short value="Primitive value for id"/> 
      <definition value="Primitive value for id"/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="string.value"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
    <!--  Note: primitive values do not have an assigned type. e.g. this is compiler magic. XML,
       JSON and RDF types provided by extension  -->
      <type> 
        <extension url="http://hl7.org/fhir/StructureDefinition/regex">
          <valueString value="[A-Za-z0-9\-\.]{1,64}"/> 
        </extension> 
        <code> 
          <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-json-type">
            <valueString value="string"/> 
          </extension> 
          <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-xml-type">
            <valueString value="xsd:string"/> 
          </extension> 
          <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-rdf-type">
            <valueString value="xsd:string"/> 
          </extension> 
        </code> 
      </type> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
    </element> 
  </snapshot> 
  <differential> 
    <element id="id">
      <path value="id"/> 
      <short value="Primitive Type id"/> 
      <definition value="Any combination of letters, numerals, &quot;-&quot; and &quot;.&quot;, with a length limit
       of 64 characters.  (This might be an integer, an unprefixed OID, UUID or any other identifier
       pattern that meets these constraints.)  Ids are case-insensitive."/> 
      <comment value="RFC 4122"/> 
      <min value="0"/> 
      <max value="*"/> 
    </element> 
    <element id="id.value">
      <path value="id.value"/> 
      <representation value="xmlAttr"/> 
      <short value="Primitive value for id"/> 
      <definition value="Primitive value for id"/> 
      <min value="0"/> 
      <max value="1"/> 
    <!--  Note: primitive values do not have an assigned type. e.g. this is compiler magic. XML,
       JSON and RDF types provided by extension  -->
      <type> 
        <extension url="http://hl7.org/fhir/StructureDefinition/regex">
          <valueString value="[A-Za-z0-9\-\.]{1,64}"/> 
        </extension> 
        <code> 
          <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-json-type">
            <valueString value="string"/> 
          </extension> 
          <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-xml-type">
            <valueString value="xsd:string"/> 
          </extension> 
          <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-rdf-type">
            <valueString value="xsd:string"/> 
          </extension> 
        </code> 
      </type> 
    </element> 
  </differential> 
</StructureDefinition>