<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="ChineseEthnicity" />
  <url value="http://192.168.1.53:8080/fhir/StructureDefinition/ChineseEthnicity" />
  <name value="ChineseEthnicity" />
  <status value="active" />
  <description value="ChineseEthnicity" />
  <fhirVersion value="5.0.0" />
  <kind value="complex-type" />
  <abstract value="false" />
  <context>
    <type value="element" />
    <expression value="Patient" />
  </context>
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension">
      <path value="Extension" />
      <comment value="ChineseEthnicity" />
      <isModifierReason value="ChineseEthnicity" />
    </element>
    <element id="Extension.url">
      <path value="Extension.url" />
      <fixedUri value="http://192.168.1.53:8080/fhir/StructureDefinition/ChineseEthnicity" />
    </element>
    <element id="Extension.value[x]">
      <path value="Extension.value[x]" />
      <short value="民族类别" />
      <definition value="中华56个民族代码， GB 3304" />
      <min value="1" />
      <type>
        <code value="code" />
      </type>
      <type>
        <code value="Coding" />
      </type>
      <binding>
        <strength value="required" />
        <description value="民族类别" />
        <valueSet value="http://192.168.1.53:8080/fhir/ValueSet/nationalities-vs" />
      </binding>
    </element>
  </differential>
</StructureDefinition>