description: This extension can be used to register the reference number of the Edifact message from which (a part of) this healthcare information originates. package_name: nictiz.fhir.nl.r4.nl derivation: constraint name: ExtEdifactReferenceNumber type: Extension elements: url: pattern: {type: Uri, value: 'http://nictiz.nl/fhir/StructureDefinition/ext-EdifactReferenceNumber'} index: 0 value: short: EdifactReferenceNumber choices: [valueString] index: 2 valueString: {type: string, short: EdifactReferenceNumber, choiceOf: value, index: 3} package_version: core-0.6.0-beta.2 class: extension kind: complex-type url: http://nictiz.nl/fhir/StructureDefinition/ext-EdifactReferenceNumber base: http://hl7.org/fhir/StructureDefinition/Extension version: null