<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="https://fhir.siss.regione.lombardia.it/StructureDefinition/RLObservationCategorieRischio" />
  <name value="RLObservationCategorieRischio" />
  <title value="RL Observation Categorie di Rischio" />
  <status value="draft" />
  <fhirVersion value="4.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="Observation" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Observation" />
  <derivation value="constraint" />
  <differential>
    <element id="Observation">
      <path value="Observation" />
      <short value="Categorie di Rischio" />
      <definition value="Identificazione di categorie di soggetti a rischio ai fini vaccinali." />
    </element>
    <element id="Observation.code">
      <path value="Observation.code" />
      <definition value="Codice identificativo." />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Observation.code.coding.system">
      <path value="Observation.code.coding.system" />
      <comment value="Fixed: LOINC (OID 2.16.840.1.113883.6.1)" />
      <min value="0" />
      <max value="1" />
      <fixedUri value="http://loinc.org" />
    </element>
    <element id="Observation.code.coding.version">
      <path value="Observation.code.coding.version" />
      <min value="0" />
      <max value="1" />
      <example>
        <label value="Esempio" />
        <valueString value="LOINC 2.19" />
      </example>
    </element>
    <element id="Observation.code.coding.code">
      <path value="Observation.code.coding.code" />
      <min value="0" />
      <max value="1" />
      <fixedCode value="95715-9" />
    </element>
    <element id="Observation.code.coding.display">
      <path value="Observation.code.coding.display" />
      <min value="0" />
      <max value="1" />
      <fixedString value="Categorie a rischio" />
    </element>
    <element id="Observation.status">
      <path value="Observation.status" />
      <definition value="Indica lo stato dell'osservazione." />
      <comment value="La fonte riportava 'Fixed: completed' (codice non valido per Observation.status); corretto a 'final', coerente col valore letterale status=[&quot;final&quot;] in tabella." />
      <min value="1" />
      <max value="1" />
      <fixedCode value="final" />
    </element>
    <element id="Observation.referenceRange">
      <path value="Observation.referenceRange" />
      <definition value="Fornisce una guida per l'interpretazione." />
      <min value="0" />
      <max value="*" />
    </element>
    <element id="Observation.referenceRange.appliesTo">
      <path value="Observation.referenceRange.appliesTo" />
      <min value="0" />
      <max value="*" />
    </element>
    <element id="Observation.referenceRange.appliesTo.coding.system">
      <path value="Observation.referenceRange.appliesTo.coding.system" />
      <min value="0" />
      <max value="1" />
      <fixedUri value="urn:oid:2.16.840.1.113883.2.9.6.1.56.2" />
    </element>
    <element id="Observation.referenceRange.appliesTo.coding.version">
      <path value="Observation.referenceRange.appliesTo.coding.version" />
      <min value="0" />
      <max value="1" />
      <fixedString value="AVN: Categorie a rischio" />
    </element>
    <element id="Observation.subject">
      <path value="Observation.subject" />
      <definition value="Riferimento al paziente o soggetto dell'osservazione." />
      <min value="0" />
      <max value="1" />
      <type>
        <code value="Reference" />
        <targetProfile value="https://fhir.siss.regione.lombardia.it/StructureDefinition/RLPatientCore" />
      </type>
    </element>
  </differential>
</StructureDefinition>