description: Identifier of the document which precedes this document in a thread. package_name: rs/ch.fhir.ig.ch derivation: constraint name: ChOrfPrecedentDocument type: Extension elements: extension: {index: 0} url: pattern: {type: uri, value: 'http://fhir.ch/ig/ch-orf/StructureDefinition/ch-orf-precedentdocument'} type: uri index: 1 value: choices: [] index: 3 slicing: rules: open ordered: false discriminator: - {path: $this, type: type} min: 1 slices: valueIdentifier: match: {} schema: short: valueIdentifier choices: [valueIdentifier] _required: true index: 5 min: 1 max: 1 valueIdentifier: type: Identifier short: valueIdentifier choiceOf: value index: 6 slicing: slices: valueIdentifier: match: {} schema: {type: Identifier, short: valueIdentifier, choiceOf: value, _required: true, index: 6} min: 1 max: 1 package_version: orf-2.0.0-ballot extensions: {} class: extension kind: complex-type url: http://fhir.ch/ig/ch-orf/StructureDefinition/ch-orf-precedentdocument base: http://hl7.org/fhir/StructureDefinition/Extension version: 2.0.0-ballot required: [value, valueIdentifier]