<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="https://example.org/fhir/StructureDefinition/PH_Immunization" />
  <name value="PH_Immunization" />
  <status value="draft" />
  <fhirVersion value="4.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="Immunization" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Immunization" />
  <derivation value="constraint" />
  <differential>
    <element id="Immunization.extension:extOrganization">
      <path value="Immunization.extension" />
      <sliceName value="extOrganization" />
      <short value="Organization where the immunization was conducted" />
      <definition value="Organization where the immunization was conducted." />
      <comment value="This is an extension" />
      <type>
        <code value="Extension" />
        <profile value="https://example.org/fhir/StructureDefinition/Ext_Organization" />
      </type>
      <isModifier value="false" />
    </element>
    <element id="Immunization.primarySource">
      <path value="Immunization.primarySource" />
      <max value="0" />
    </element>
    <element id="Immunization.location">
      <path value="Immunization.location" />
      <max value="0" />
    </element>
    <element id="Immunization.manufacturer">
      <path value="Immunization.manufacturer" />
      <max value="0" />
    </element>
    <element id="Immunization.lotNumber">
      <path value="Immunization.lotNumber" />
      <max value="0" />
    </element>
    <element id="Immunization.expirationDate">
      <path value="Immunization.expirationDate" />
      <max value="0" />
    </element>
    <element id="Immunization.site">
      <path value="Immunization.site" />
      <max value="0" />
    </element>
    <element id="Immunization.performer">
      <path value="Immunization.performer" />
      <max value="0" />
    </element>
    <element id="Immunization.reasonReference">
      <path value="Immunization.reasonReference" />
      <max value="0" />
    </element>
    <element id="Immunization.isSubpotent">
      <path value="Immunization.isSubpotent" />
      <max value="0" />
    </element>
    <element id="Immunization.subpotentReason">
      <path value="Immunization.subpotentReason" />
      <max value="0" />
    </element>
    <element id="Immunization.education">
      <path value="Immunization.education" />
      <max value="0" />
    </element>
    <element id="Immunization.programEligibility">
      <path value="Immunization.programEligibility" />
      <max value="0" />
    </element>
    <element id="Immunization.fundingSource">
      <path value="Immunization.fundingSource" />
      <max value="0" />
    </element>
    <element id="Immunization.protocolApplied">
      <path value="Immunization.protocolApplied" />
      <max value="0" />
    </element>
  </differential>
</StructureDefinition>