Clinical Document Architecture
2.0.0-sd - release

This page is part of the CDA: Clinical Document Architecture (v2.0.0-sd: CDA2 - Informative) generated with FHIR (HL7® FHIR® Standard) v5.0.0. This is the current published version in its permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions

Data Type Profile: uuid - XML Profile

Active as of 2024-05-17

XML representation of the uuid data type profile.

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<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="uuid"/>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml">
      <p>Primitive type 'uuid'</p>
    </div>
  </text>
  <extension
             url="http://hl7.org/fhir/tools/StructureDefinition/xml-namespace">
    <valueUri value="urn:hl7-org:v3"/>
  </extension>
  <extension
             url="http://hl7.org/fhir/tools/StructureDefinition/logical-container">
    <valueUri
              value="http://hl7.org/cda/stds/core/StructureDefinition/ClinicalDocument"/>
  </extension>
  <extension
             url="http://hl7.org/fhir/StructureDefinition/structuredefinition-type-characteristics">
    <valueCode value="can-bind"/>
  </extension>
  <url value="http://hl7.org/cda/stds/core/StructureDefinition/uuid"/>
  <version value="2.0.0-sd"/>
  <name value="uuid"/>
  <title value="uuid: DCE Universal Unique Identifier"/>
  <status value="active"/>
  <experimental value="false"/>
  <date value="2024-05-17T05:57:28+10:00"/>
  <publisher value="Health Level 7"/>
  <contact>
    <name value="HL7 International - Structured Documents"/>
    <telecom>
      <system value="url"/>
      <value value="http://www.hl7.org/Special/committees/structure"/>
    </telecom>
    <telecom>
      <system value="email"/>
      <value value="structdog@lists.HL7.org"/>
    </telecom>
  </contact>
  <description
               value="A globally unique string representing a DCE Universal Unique Identifier (UUID) in the common UUID format that consists of 5 hyphen-separated groups of hexadecimal digits having 8, 4, 4, 4, and 12 places respectively.

***NOTE:*** The output of UUID related programs and functions may use all sorts of forms, upper case, lower case, and with or without the hyphens that group the digits. This variate output must be postprocessed to conform to the HL7 specification, i.e., the hyphens must be inserted for the 8-4-4-4-12 grouping and all hexadecimal digits must be converted to upper case."/>
  <fhirVersion value="5.0.0"/>
  <kind value="primitive-type"/>
  <abstract value="false"/>
  <type value="string"/>
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/string"/>
  <derivation value="constraint"/>
  <snapshot>
    <element id="string">
      <path value="string"/>
      <short value="Primitive Type string"/>
      <definition value="A sequence of Unicode characters"/>
      <comment
               value="Note that FHIR strings SHALL NOT exceed 1,048,576 (1024*1024) characters in size"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="string"/>
        <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() or (children().count() &gt; id.count())"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="uuid-pattern"/>
        <severity value="error"/>
        <human
               value="Must contain 5 hyphen-separated groups of hexadecimal digits having 8, 4, 4, 4, and 12 places respectively."/>
        <expression
                    value="matches('^[0-9A-Za-z]{8}-[0-9A-Za-z]{4}-[0-9A-Za-z]{4}-[0-9A-Za-z]{4}-[0-9A-Za-z]{12}$')"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="string.id">
      <path value="string.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="0"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <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="string.extension">
      <path value="string.extension"/>
      <short value="Extension"/>
      <definition value="An Extension"/>
      <min value="0"/>
      <max value="0"/>
      <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="string.value">
      <path value="string.value"/>
      <representation value="xmlAttr"/>
      <short value="Primitive value for string"/>
      <definition value="The actual value"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="string.value"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string"/>
        </extension>
        <extension url="http://hl7.org/fhir/StructureDefinition/regex">
          <valueString value="^[\s\S]+$"/>
        </extension>
        <code value="http://hl7.org/fhirpath/System.String"/>
      </type>
      <maxLength value="1048576"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
  </snapshot>
  <differential>
    <element id="string">
      <path value="string"/>
      <constraint>
        <key value="uuid-pattern"/>
        <severity value="error"/>
        <human
               value="Must contain 5 hyphen-separated groups of hexadecimal digits having 8, 4, 4, 4, and 12 places respectively."/>
        <expression
                    value="matches('^[0-9A-Za-z]{8}-[0-9A-Za-z]{4}-[0-9A-Za-z]{4}-[0-9A-Za-z]{4}-[0-9A-Za-z]{12}$')"/>
      </constraint>
    </element>
    <element id="string.id">
      <path value="string.id"/>
      <max value="0"/>
    </element>
    <element id="string.extension">
      <path value="string.extension"/>
      <max value="0"/>
    </element>
  </differential>
</StructureDefinition>