<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="https://fhir.nhs.uk/StructureDefinition/NHSDigital-ImmunizationRecommendation" />
  <name value="NHSDigitalImmunizationRecommendation" />
  <status value="draft" />
  <fhirVersion value="4.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="ImmunizationRecommendation" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/ImmunizationRecommendation" />
  <derivation value="constraint" />
  <differential>
    <element id="ImmunizationRecommendation.patient">
      <path value="ImmunizationRecommendation.patient" />
      <mustSupport value="true" />
    </element>
    <element id="ImmunizationRecommendation.patient.identifier">
      <path value="ImmunizationRecommendation.patient.identifier" />
      <min value="1" />
    </element>
    <element id="ImmunizationRecommendation.patient.identifier.system">
      <path value="ImmunizationRecommendation.patient.identifier.system" />
      <min value="1" />
    </element>
    <element id="ImmunizationRecommendation.patient.identifier.value">
      <path value="ImmunizationRecommendation.patient.identifier.value" />
      <min value="1" />
    </element>
    <element id="ImmunizationRecommendation.date">
      <path value="ImmunizationRecommendation.date" />
      <mustSupport value="true" />
    </element>
    <element id="ImmunizationRecommendation.authority.identifier.system">
      <path value="ImmunizationRecommendation.authority.identifier.system" />
      <min value="1" />
    </element>
    <element id="ImmunizationRecommendation.authority.identifier.value">
      <path value="ImmunizationRecommendation.authority.identifier.value" />
      <min value="1" />
    </element>
    <element id="ImmunizationRecommendation.authority.display">
      <path value="ImmunizationRecommendation.authority.display" />
      <min value="1" />
    </element>
    <element id="ImmunizationRecommendation.recommendation.vaccineCode">
      <path value="ImmunizationRecommendation.recommendation.vaccineCode" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="coding.system" />
        </discriminator>
        <rules value="open" />
      </slicing>
    </element>
    <element id="ImmunizationRecommendation.recommendation.vaccineCode:sctCOVIDVaccineCode">
      <path value="ImmunizationRecommendation.recommendation.vaccineCode" />
      <sliceName value="sctCOVIDVaccineCode" />
      <fixedCodeableConcept>
        <coding>
          <system value="http://snomed.info/sct" />
        </coding>
      </fixedCodeableConcept>
      <binding>
        <strength value="required" />
        <description value="Type of vaccine to be administered. Vaccine List (COVID-19) from [SNOMED CT]" />
        <valueSet value="http://hl7.eu/fhir/ig/dcc/ValueSet/sct-vaccines-covid-19" />
      </binding>
    </element>
    <element id="ImmunizationRecommendation.recommendation.vaccineCode:sctCOVIDVaccineCode.coding">
      <path value="ImmunizationRecommendation.recommendation.vaccineCode.coding" />
      <min value="1" />
    </element>
    <element id="ImmunizationRecommendation.recommendation.vaccineCode:sctCOVIDVaccineCode.coding.system">
      <path value="ImmunizationRecommendation.recommendation.vaccineCode.coding.system" />
      <min value="1" />
    </element>
    <element id="ImmunizationRecommendation.recommendation.vaccineCode:sctCOVIDVaccineCode.coding.code">
      <path value="ImmunizationRecommendation.recommendation.vaccineCode.coding.code" />
      <min value="1" />
    </element>
    <element id="ImmunizationRecommendation.recommendation.vaccineCode:sctCOVIDVaccineCode.coding.display">
      <path value="ImmunizationRecommendation.recommendation.vaccineCode.coding.display" />
      <min value="1" />
    </element>
    <element id="ImmunizationRecommendation.recommendation.targetDisease">
      <path value="ImmunizationRecommendation.recommendation.targetDisease" />
      <binding>
        <strength value="required" />
      </binding>
    </element>
    <element id="ImmunizationRecommendation.recommendation.forecastStatus">
      <path value="ImmunizationRecommendation.recommendation.forecastStatus" />
      <mustSupport value="true" />
    </element>
  </differential>
</StructureDefinition>