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