<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="iso21090-PQ-translation" />
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="fhir" />
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
    <valueInteger value="1" />
  </extension>
  <url value="http://hl7.org/fhir/StructureDefinition/iso21090-PQ-translation" />
  <version value="4.0.0" />
  <name value="PQ-translation" />
  <status value="draft" />
  <date value="2012-06-24" />
  <publisher value="Health Level Seven International (Modeling and Methodology)" />
  <contact>
    <telecom>
      <system value="url" />
      <value value="http://www.hl7.org/Special/committees/mnm" />
    </telecom>
  </contact>
  <description value="An alternative representation of the same physical quantity expressed in a different unit from a different unit code system and possibly with a different value." />
  <fhirVersion value="4.0.0" />
  <mapping>
    <identity value="rim" />
    <uri value="http://hl7.org/v3" />
    <name value="RIM Mapping" />
  </mapping>
  <kind value="complex-type" />
  <abstract value="false" />
  <context>
    <type value="element" />
    <expression value="Quantity" />
  </context>
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension">
      <path value="Extension" />
      <short value="Same quantity with different units" />
      <definition value="An alternative representation of the same physical quantity expressed in a different unit from a different unit code system and possibly with a different value." />
      <comment value="It is not necessary for information processing entities to check and enforce that the translations are valid translations of the base unit, but they are allowed to do so, and to reject instances where the translations are not valid. &#xA;NOTE Translations are allowed to contain other representations in UCUM units, but there is generally no point to this as it is possible to convert from one UCUM form to another." />
      <min value="0" />
      <max value="*" />
      <mapping>
        <identity value="rim" />
        <map value="PQ.translation" />
      </mapping>
    </element>
    <element id="Extension.extension">
      <path value="Extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.url">
      <path value="Extension.url" />
      <type>
        <code value="uri" />
      </type>
      <fixedUri value="http://hl7.org/fhir/StructureDefinition/iso21090-PQ-translation" />
    </element>
    <element id="Extension.valueQuantity">
      <path value="Extension.valueQuantity" />
      <type>
        <code value="Quantity" />
      </type>
    </element>
  </differential>
</StructureDefinition>