description: Extension to represent the changed MedicationRequest package_name: ch.fhir.ig.ch-emed derivation: constraint name: CHEMEDExtMedicationRequestChanged type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://fhir.ch/ig/ch-emed/StructureDefinition/ch-emed-ext-medicationrequest-changed'} index: 1 value: short: The changed MedicationRequest choices: [valueReference] index: 3 valueReference: type: Reference short: The changed MedicationRequest choiceOf: value refers: ['http://fhir.ch/ig/ch-emed/StructureDefinition/ch-emed-medicationrequest-changed'] index: 4 package_version: 5.0.0-ballot extensions: {} class: extension kind: complex-type url: http://fhir.ch/ig/ch-emed/StructureDefinition/ch-emed-ext-medicationrequest-changed base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.0.0-ballot required: [valueReference, value]