description: This transaction identifier is used to track medication prescription transactions between the E-Rezept-Fachdienst and the ePA. It is generated by the ePA Medication Service, ensuring a consistent and unique identification of each transaction. The identifier is composed of the PrescriptionId and the authoredOn-date of the operations parameters request, providing a robust mechanism for referencing and managing medication-related resources across systems. package_name: de.gematik.epa.medication derivation: constraint name: RxPrescriptionProcessIdentifier type: Identifier elements: system: pattern: {type: uri, value: 'https://gematik.de/fhir/epa-medication/sid/rx-prescription-process-identifier'} mustSupport: true type: uri index: 0 value: {mustSupport: true, index: 1} package_version: 1.0.6 class: complex-type kind: complex-type url: https://gematik.de/fhir/epa-medication/StructureDefinition/rx-prescription-process-identifier base: http://hl7.org/fhir/StructureDefinition/Identifier version: 1.0.6 required: [system, value]