<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="ext-medication-regimen" />
  <language value="en-US" />
  <url value="http://fhir.health.gov.il/StructureDefinition/ext-medication-regimen" />
  <version value="0.20.0" />
  <name value="MedicationRegimen" />
  <title value="Ext: Medication Regimen" />
  <status value="active" />
  <date value="2026-01-11" />
  <publisher value="Israel Core Team" />
  <contact>
    <telecom>
      <system value="email" />
      <value value="tal.primak@moh.gov.il" />
    </telecom>
  </contact>
  <description value="regimen metadata for a medication order: protocol name, cycle plan and active ingredient dose information." />
  <fhirVersion value="4.0.1" />
  <kind value="complex-type" />
  <abstract value="false" />
  <context>
    <type value="element" />
    <expression value="MedicationRequest" />
  </context>
  <context>
    <type value="element" />
    <expression value="MedicationAdministration" />
  </context>
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension">
      <path value="Extension" />
      <short value="Ext: Medication Regimen" />
      <definition value="regimen metadata for a medication order: protocol name, cycle plan and active ingredient dose information." />
    </element>
    <element id="Extension.extension">
      <path value="Extension.extension" />
      <min value="1" />
    </element>
    <element id="Extension.extension:text">
      <path value="Extension.extension" />
      <sliceName value="text" />
      <min value="0" />
      <max value="1" />
    </element>
    <element id="Extension.extension:text.extension">
      <path value="Extension.extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.extension:text.url">
      <path value="Extension.extension.url" />
      <fixedUri value="text" />
    </element>
    <element id="Extension.extension:text.value[x]">
      <path value="Extension.extension.value[x]" />
      <short value="text" />
      <type>
        <code value="string" />
      </type>
    </element>
    <element id="Extension.extension:protocolName">
      <path value="Extension.extension" />
      <sliceName value="protocolName" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Extension.extension:protocolName.extension">
      <path value="Extension.extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.extension:protocolName.url">
      <path value="Extension.extension.url" />
      <fixedUri value="protocolName" />
    </element>
    <element id="Extension.extension:protocolName.value[x]">
      <path value="Extension.extension.value[x]" />
      <short value="Protocol name" />
      <type>
        <code value="string" />
      </type>
    </element>
    <element id="Extension.extension:totalCycles">
      <path value="Extension.extension" />
      <sliceName value="totalCycles" />
      <min value="0" />
      <max value="1" />
    </element>
    <element id="Extension.extension:totalCycles.extension">
      <path value="Extension.extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.extension:totalCycles.url">
      <path value="Extension.extension.url" />
      <fixedUri value="totalCycles" />
    </element>
    <element id="Extension.extension:totalCycles.value[x]">
      <path value="Extension.extension.value[x]" />
      <short value="Total planned number of cycles" />
      <type>
        <code value="positiveInt" />
      </type>
    </element>
    <element id="Extension.extension:durationBetweenCycles">
      <path value="Extension.extension" />
      <sliceName value="durationBetweenCycles" />
      <min value="0" />
      <max value="1" />
    </element>
    <element id="Extension.extension:durationBetweenCycles.extension">
      <path value="Extension.extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.extension:durationBetweenCycles.url">
      <path value="Extension.extension.url" />
      <fixedUri value="durationBetweenCycles" />
    </element>
    <element id="Extension.extension:durationBetweenCycles.value[x]">
      <path value="Extension.extension.value[x]" />
      <short value="Fixed interval between cycles" />
      <type>
        <code value="Duration" />
      </type>
    </element>
    <element id="Extension.extension:currentCycleNumber">
      <path value="Extension.extension" />
      <sliceName value="currentCycleNumber" />
      <min value="0" />
      <max value="1" />
    </element>
    <element id="Extension.extension:currentCycleNumber.extension">
      <path value="Extension.extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.extension:currentCycleNumber.url">
      <path value="Extension.extension.url" />
      <fixedUri value="currentCycleNumber" />
    </element>
    <element id="Extension.extension:currentCycleNumber.value[x]">
      <path value="Extension.extension.value[x]" />
      <short value="Current cycle number of this medication order" />
      <type>
        <code value="positiveInt" />
      </type>
    </element>
    <element id="Extension.extension:activeIngredient">
      <path value="Extension.extension" />
      <sliceName value="activeIngredient" />
      <min value="0" />
      <max value="1" />
    </element>
    <element id="Extension.extension:activeIngredient.extension:text">
      <path value="Extension.extension.extension" />
      <sliceName value="text" />
      <min value="0" />
      <max value="1" />
    </element>
    <element id="Extension.extension:activeIngredient.extension:text.extension">
      <path value="Extension.extension.extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.extension:activeIngredient.extension:text.url">
      <path value="Extension.extension.extension.url" />
      <fixedUri value="text" />
    </element>
    <element id="Extension.extension:activeIngredient.extension:text.value[x]">
      <path value="Extension.extension.extension.value[x]" />
      <short value="Text of the activeIngredient" />
      <type>
        <code value="string" />
      </type>
    </element>
    <element id="Extension.extension:activeIngredient.extension:cumulativeactiveIngredient">
      <path value="Extension.extension.extension" />
      <sliceName value="cumulativeactiveIngredient" />
      <min value="0" />
      <max value="1" />
    </element>
    <element id="Extension.extension:activeIngredient.extension:cumulativeactiveIngredient.extension">
      <path value="Extension.extension.extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.extension:activeIngredient.extension:cumulativeactiveIngredient.url">
      <path value="Extension.extension.extension.url" />
      <fixedUri value="cumulativeactiveIngredient" />
    </element>
    <element id="Extension.extension:activeIngredient.extension:cumulativeactiveIngredient.value[x]">
      <path value="Extension.extension.extension.value[x]" />
      <short value="Cumulative active ingredient dose up to the current cycle" />
      <type>
        <code value="Quantity" />
      </type>
    </element>
    <element id="Extension.extension:activeIngredient.extension:activeIngredientReference">
      <path value="Extension.extension.extension" />
      <sliceName value="activeIngredientReference" />
      <min value="0" />
      <max value="1" />
    </element>
    <element id="Extension.extension:activeIngredient.extension:activeIngredientReference.extension">
      <path value="Extension.extension.extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.extension:activeIngredient.extension:activeIngredientReference.url">
      <path value="Extension.extension.extension.url" />
      <fixedUri value="activeIngredientReference" />
    </element>
    <element id="Extension.extension:activeIngredient.extension:activeIngredientReference.value[x]">
      <path value="Extension.extension.extension.value[x]" />
      <short value="Reference to the Medication representing the active ingredient" />
      <type>
        <code value="Reference" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Medication" />
      </type>
    </element>
    <element id="Extension.extension:activeIngredient.url">
      <path value="Extension.extension.url" />
      <fixedUri value="activeIngredient" />
    </element>
    <element id="Extension.extension:activeIngredient.value[x]">
      <path value="Extension.extension.value[x]" />
      <max value="0" />
    </element>
    <element id="Extension.url">
      <path value="Extension.url" />
      <fixedUri value="http://fhir.health.gov.il/StructureDefinition/ext-medication-regimen" />
    </element>
    <element id="Extension.value[x]">
      <path value="Extension.value[x]" />
      <max value="0" />
    </element>
  </differential>
</StructureDefinition>