<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="https://fhir.siss.regione.lombardia.it/StructureDefinition/RLMedicationPAI" />
  <name value="RLMedicationPAI" />
  <title value="Medication PAI" />
  <status value="draft" />
  <date value="2026-10-28" />
  <fhirVersion value="4.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="Medication" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Medication" />
  <derivation value="constraint" />
  <differential>
    <element id="Medication">
      <path value="Medication" />
      <short value="Farmaco programmato" />
    </element>
    <element id="Medication.code">
      <path value="Medication.code" />
      <short value="Identifica il farmaco tramite codici standard" />
      <comment value="Una coding per ciascun codice disponibile: ATC, AIC, GE." />
      <min value="0" />
      <max value="1" />
    </element>
    <element id="Medication.code.coding">
      <path value="Medication.code.coding" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="system" />
        </discriminator>
        <ordered value="false" />
        <rules value="open" />
      </slicing>
      <min value="1" />
      <max value="*" />
    </element>
    <element id="Medication.code.coding:atc">
      <path value="Medication.code.coding" />
      <sliceName value="atc" />
      <short value="Codice ATC" />
      <min value="0" />
      <max value="1" />
    </element>
    <element id="Medication.code.coding:atc.system">
      <path value="Medication.code.coding.system" />
      <short value="Sistema di codifica" />
      <comment value="ATC (OID 2.16.840.1.113883.6.73)" />
      <min value="1" />
      <max value="1" />
      <fixedUri value="http://www.whocc.no/atc" />
    </element>
    <element id="Medication.code.coding:atc.code">
      <path value="Medication.code.coding.code" />
      <short value="Codice ATC" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Medication.code.coding:atc.display">
      <path value="Medication.code.coding.display" />
      <short value="Descrizione ATC" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Medication.code.coding:aic">
      <path value="Medication.code.coding" />
      <sliceName value="aic" />
      <short value="Codice AIC" />
      <min value="0" />
      <max value="1" />
    </element>
    <element id="Medication.code.coding:aic.system">
      <path value="Medication.code.coding.system" />
      <short value="Sistema di codifica" />
      <comment value="AIC (OID 2.16.840.1.113883.2.9.6.1.5)" />
      <min value="1" />
      <max value="1" />
      <fixedUri value="urn:oid:2.16.840.1.113883.2.9.6.1.5" />
    </element>
    <element id="Medication.code.coding:aic.code">
      <path value="Medication.code.coding.code" />
      <short value="Codice AIC" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Medication.code.coding:aic.display">
      <path value="Medication.code.coding.display" />
      <short value="Descrizione AIC" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Medication.code.coding:ge">
      <path value="Medication.code.coding" />
      <sliceName value="ge" />
      <short value="Codice GE" />
      <min value="0" />
      <max value="1" />
    </element>
    <element id="Medication.code.coding:ge.system">
      <path value="Medication.code.coding.system" />
      <short value="Sistema di codifica" />
      <comment value="GE (OID 2.16.840.1.113883.2.9.6.1.51)" />
      <min value="1" />
      <max value="1" />
      <fixedUri value="urn:oid:2.16.840.1.113883.2.9.6.1.51" />
    </element>
    <element id="Medication.code.coding:ge.code">
      <path value="Medication.code.coding.code" />
      <short value="Codice GE" />
      <min value="0" />
      <max value="1" />
    </element>
    <element id="Medication.code.coding:ge.display">
      <path value="Medication.code.coding.display" />
      <short value="Descrizione GE" />
      <min value="1" />
      <max value="1" />
    </element>
  </differential>
</StructureDefinition>