OMOP-Convertible Medication → drug_exposure (vocabulary linkage)

{
  "resourceType": "StructureDefinition",
  "id": "omop-medication-drug-exposure",
  "url": "https://fhir2omop.health-samurai.io/StructureDefinition/omop-medication-drug-exposure",
  "version": "0.1.0",
  "name": "OmopMedicationDrugExposure",
  "title": "OMOP-Convertible Medication → drug_exposure (vocabulary linkage)",
  "status": "draft",
  "experimental": true,
  "description": "Vocabulary-linkage profile. The FHIR Medication resource is not directly converted to a drug_exposure row; instead, when an event resource (MedicationRequest / Dispense / Administration / Statement) carries a medicationReference, the referenced Medication.code is resolved into drug_concept_id / drug_source_value. This profile defines the canonical code shape: a CodeableConcept in the OMOP Drug domain (RxNorm / NDC / SNOMED CT product).",
  "fhirVersion": "4.0.1",
  "kind": "resource",
  "abstract": false,
  "type": "Medication",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Medication",
  "derivation": "constraint",
  "extension": [
    {
      "url": "https://fhir2omop.health-samurai.io/StructureDefinition/omop-target-table",
      "valueString": "drug_exposure"
    },
    {
      "url": "https://fhir2omop.health-samurai.io/StructureDefinition/omop-edge",
      "valueString": "Medication__drug_exposure"
    }
  ],
  "differential": {
    "element": [
      {
        "id": "Medication.code",
        "path": "Medication.code",
        "min": 1,
        "mustSupport": true,
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "binding": {
          "strength": "required",
          "valueSet": "https://fhir2omop.health-samurai.io/ValueSet/omop-drug-codes",
          "description": "Routing key for any event resource that references this Medication. Code must be in the OMOP Drug domain (RxNorm / NDC / SNOMED CT product)."
        }
      }
    ]
  },
  "targetTable": "drug_exposure",
  "edgeKey": "Medication__drug_exposure"
}