<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="http://example.org/fhir/StructureDefinition/MyImmunization" />
  <name value="MyImmunization" />
  <status value="draft" />
  <experimental value="true" />
  <fhirVersion value="4.0.1" />
  <mapping>
    <identity value="workflow" />
    <uri value="http://hl7.org/fhir/workflow" />
    <name value="Workflow Pattern" />
  </mapping>
  <mapping>
    <identity value="v2" />
    <uri value="http://hl7.org/v2" />
    <name value="HL7 v2 Mapping" />
  </mapping>
  <mapping>
    <identity value="rim" />
    <uri value="http://hl7.org/v3" />
    <name value="RIM Mapping" />
  </mapping>
  <mapping>
    <identity value="w5" />
    <uri value="http://hl7.org/fhir/fivews" />
    <name value="FiveWs Pattern Mapping" />
  </mapping>
  <mapping>
    <identity value="cda" />
    <uri value="http://hl7.org/v3/cda" />
    <name value="CDA (R2)" />
  </mapping>
  <kind value="resource" />
  <abstract value="false" />
  <type value="Immunization" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Immunization" />
  <derivation value="constraint" />
  <differential>
    <element id="Immunization.vaccineCode.coding.system">
      <path value="Immunization.vaccineCode.coding.system" />
      <fixedUri value="http://snomed.info/sct" />
    </element>
    <element id="Immunization.vaccineCode.coding.code">
      <path value="Immunization.vaccineCode.coding.code" />
      <fixedCode value="1119349007" />
      <mustSupport value="true" />
    </element>
    <element id="Immunization.patient.identifier">
      <path value="Immunization.patient.identifier" />
      <min value="1" />
    </element>
    <element id="Immunization.occurrence[x]">
      <path value="Immunization.occurrence[x]" />
      <mustSupport value="true" />
    </element>
    <element id="Immunization.reportOrigin.coding.system">
      <path value="Immunization.reportOrigin.coding.system" />
      <fixedUri value="http://snomed.info/sct" />
    </element>
    <element id="Immunization.site.coding.system">
      <path value="Immunization.site.coding.system" />
      <fixedUri value="http://snomed.info/sct" />
    </element>
  </differential>
</StructureDefinition>