<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="https://fohm.se/nvr/fhir/StructureDefinition/NVRVaccine" />
  <name value="NVRVaccine" />
  <status value="draft" />
  <description value="A vaccine defined by nplId and lot number" />
  <fhirVersion value="5.0.0" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="Medication" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Medication" />
  <derivation value="constraint" />
  <differential>
    <element id="Medication.identifier">
      <path value="Medication.identifier" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="system" />
        </discriminator>
        <rules value="open" />
      </slicing>
      <max value="0" />
    </element>
    <element id="Medication.code.coding">
      <path value="Medication.code.coding" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="system" />
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        <rules value="open" />
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      <min value="1" />
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      <path value="Medication.code.coding" />
      <sliceName value="nplId" />
      <max value="1" />
    </element>
    <element id="Medication.code.coding:nplId.system">
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    <element id="Medication.code.coding:atc">
      <path value="Medication.code.coding" />
      <sliceName value="atc" />
      <max value="1" />
    </element>
    <element id="Medication.code.coding:atc.system">
      <path value="Medication.code.coding.system" />
      <fixedUri value="http://www.whocc.no/atc/example" />
    </element>
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    <element id="Medication.code.coding:program">
      <path value="Medication.code.coding" />
      <sliceName value="program" />
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    <element id="Medication.code.coding:program.system">
      <path value="Medication.code.coding.system" />
      <binding>
        <strength value="required" />
        <valueSet value="http://fohm.se/nvr/fhir/ValueSet/vaccination-programs" />
      </binding>
    </element>
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      <path value="Medication.code.text" />
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    <element id="Medication.status">
      <path value="Medication.status" />
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    </element>
    <element id="Medication.doseForm">
      <path value="Medication.doseForm" />
      <max value="0" />
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    <element id="Medication.totalVolume">
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      <max value="0" />
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    <element id="Medication.ingredient">
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      <path value="Medication.batch.lotNumber" />
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    <element id="Medication.batch.expirationDate">
      <path value="Medication.batch.expirationDate" />
      <max value="0" />
    </element>
    <element id="Medication.definition">
      <path value="Medication.definition" />
      <max value="0" />
    </element>
  </differential>
</StructureDefinition>