<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="https://fhir.siss.regione.lombardia.it/StructureDefinition/RLMedicationRequestPAI" />
  <name value="RLMedicationRequestPAI" />
  <title value="MedicationRequest PAI" />
  <status value="draft" />
  <date value="2026-10-28" />
  <fhirVersion value="4.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="MedicationRequest" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/MedicationRequest" />
  <derivation value="constraint" />
  <differential>
    <element id="MedicationRequest">
      <path value="MedicationRequest" />
      <short value="Terapia farmacologica programmata" />
    </element>
    <element id="MedicationRequest.status">
      <path value="MedicationRequest.status" />
      <short value="Stato della richiesta" />
      <min value="1" />
      <max value="1" />
      <fixedCode value="active" />
    </element>
    <element id="MedicationRequest.intent">
      <path value="MedicationRequest.intent" />
      <short value="Scopo della richiesta" />
      <min value="1" />
      <max value="1" />
      <fixedCode value="order" />
    </element>
    <element id="MedicationRequest.medication[x]">
      <path value="MedicationRequest.medication[x]" />
      <short value="Farmaco programmato" />
      <comment value="Medication con i codici ATC, AIC e GE. Si usa un'unica Medication per tutti i codici del farmaco." />
      <min value="1" />
      <max value="1" />
      <type>
        <code value="Reference" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Medication" />
      </type>
    </element>
    <element id="MedicationRequest.subject">
      <path value="MedicationRequest.subject" />
      <short value="Paziente a cui si riferisce la prescrizione" />
      <min value="1" />
      <max value="1" />
      <type>
        <code value="Reference" />
        <targetProfile value="https://fhir.siss.regione.lombardia.it/StructureDefinition/RLPatientCore" />
      </type>
    </element>
    <element id="MedicationRequest.note">
      <path value="MedicationRequest.note" />
      <short value="Note" />
      <min value="0" />
      <max value="1" />
    </element>
    <element id="MedicationRequest.note.text">
      <path value="MedicationRequest.note.text" />
      <short value="Note" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="MedicationRequest.dosageInstruction">
      <path value="MedicationRequest.dosageInstruction" />
      <short value="Posologia" />
      <min value="0" />
      <max value="1" />
    </element>
    <element id="MedicationRequest.dosageInstruction.text">
      <path value="MedicationRequest.dosageInstruction.text" />
      <short value="Posologia e note" />
      <min value="0" />
      <max value="1" />
    </element>
    <element id="MedicationRequest.dosageInstruction.timing">
      <path value="MedicationRequest.dosageInstruction.timing" />
      <min value="0" />
      <max value="1" />
    </element>
    <element id="MedicationRequest.dosageInstruction.timing.code">
      <path value="MedicationRequest.dosageInstruction.timing.code" />
      <short value="Frequenza" />
      <comment value="Il binding FHIR timing-abbreviation è preferred: il codice CRS-SISS è ammesso." />
      <min value="0" />
      <max value="1" />
    </element>
    <element id="MedicationRequest.dosageInstruction.timing.code.coding">
      <path value="MedicationRequest.dosageInstruction.timing.code.coding" />
      <min value="0" />
      <max value="1" />
    </element>
    <element id="MedicationRequest.dosageInstruction.timing.code.coding.system">
      <path value="MedicationRequest.dosageInstruction.timing.code.coding.system" />
      <short value="Sistema di codifica" />
      <min value="0" />
      <max value="1" />
      <fixedUri value="urn:oid:2.16.840.1.113883.2.9.2.30.3.1.3.13.6.57" />
    </element>
    <element id="MedicationRequest.dosageInstruction.timing.code.coding.code">
      <path value="MedicationRequest.dosageInstruction.timing.code.coding.code" />
      <short value="Codice frequenza" />
      <min value="0" />
      <max value="1" />
    </element>
    <element id="MedicationRequest.dosageInstruction.timing.code.coding.display">
      <path value="MedicationRequest.dosageInstruction.timing.code.coding.display" />
      <short value="Descrizione leggibile del codice" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="MedicationRequest.dosageInstruction.doseAndRate">
      <path value="MedicationRequest.dosageInstruction.doseAndRate" />
      <min value="0" />
      <max value="1" />
    </element>
    <element id="MedicationRequest.dosageInstruction.doseAndRate.dose[x]">
      <path value="MedicationRequest.dosageInstruction.doseAndRate.dose[x]" />
      <short value="Unità farmaco" />
      <min value="0" />
      <max value="1" />
      <type>
        <code value="Quantity" />
        <profile value="http://hl7.org/fhir/StructureDefinition/SimpleQuantity" />
      </type>
    </element>
    <element id="MedicationRequest.dosageInstruction.doseAndRate.dose[x].value">
      <path value="MedicationRequest.dosageInstruction.doseAndRate.dose[x].value" />
      <short value="Unità farmaco" />
      <min value="0" />
      <max value="1" />
    </element>
  </differential>
</StructureDefinition>