description: '`Observation.context` and `MedicationRequest.context` have been renamed and remodeled in R4 to only contain a reference to Encounter. `MedicationStatement.context` and `MedicationAdministration.context` are a `0..1` reference to Encounter|EpisodeOfCare. This extension allows to add a reference to EpisodeOfCare (potentially next to a reference to an Encounter). From R5 onwards, this extension will likely be replaced by an HL7 core extension.' package_name: nictiz.fhir.nl.r4.nl derivation: constraint name: ExtContextEpisodeOfCare type: Extension elements: url: pattern: {type: Uri, value: 'http://nictiz.nl/fhir/StructureDefinition/ext-Context-EpisodeOfCare'} index: 0 value: short: EpisodeOfCare choices: [valueReference] index: 2 valueReference: type: Reference short: EpisodeOfCare choiceOf: value refers: ['http://hl7.org/fhir/StructureDefinition/EpisodeOfCare', 'http://nictiz.nl/fhir/StructureDefinition/nl-core-EpisodeOfCare'] index: 3 package_version: core-0.11.0-beta.1 class: extension kind: complex-type url: http://nictiz.nl/fhir/StructureDefinition/ext-Context-EpisodeOfCare base: http://hl7.org/fhir/StructureDefinition/Extension version: null