description: This cross-version extension represents Immunization.explanation from http://hl7.org/fhir/StructureDefinition/Immunization|1.0.2 for use in FHIR R5. package_name: hl7.fhir.uv.xver derivation: constraint name: Ext_R2_Immunization_explanation type: Extension elements: extension: base: {max: '*', min: 0, path: Extension.extension} array: true index: 0 slicing: rules: closed ordered: false discriminator: - {path: url, type: value} min: 0 slices: reason: match: {url: reason} schema: short: Why immunization occurred array: true base: {max: '*', min: 0, path: Extension.extension} index: 1 elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: reason} index: 2 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} short: Why immunization occurred choices: [valueCodeableConcept] index: 4 valueCodeableConcept: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: CodeableConcept short: Why immunization occurred choiceOf: value index: 5 required: [url] reasonNotGiven: match: {url: reasonNotGiven} schema: short: Why immunization did not occur array: true base: {max: '*', min: 0, path: Extension.extension} index: 6 elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: reasonNotGiven} index: 7 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} short: Why immunization did not occur choices: [valueCodeableConcept] index: 9 valueCodeableConcept: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: CodeableConcept short: Why immunization did not occur choiceOf: value index: 10 required: [url] url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: 'http://hl7.org/fhir/1.0/StructureDefinition/extension-Immunization.explanation'} index: 11 package_version: r2.r5-0.0.1-snapshot-2 extensions: reason: url: reason short: Why immunization occurred array: true base: {max: '*', min: 0, path: Extension.extension} index: 1 elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: reason} index: 2 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} short: Why immunization occurred choices: [valueCodeableConcept] index: 4 valueCodeableConcept: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: CodeableConcept short: Why immunization occurred choiceOf: value index: 5 required: [url] reasonNotGiven: url: reasonNotGiven short: Why immunization did not occur array: true base: {max: '*', min: 0, path: Extension.extension} index: 6 elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: reasonNotGiven} index: 7 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} short: Why immunization did not occur choices: [valueCodeableConcept] index: 9 valueCodeableConcept: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: CodeableConcept short: Why immunization did not occur choiceOf: value index: 10 required: [url] class: extension kind: complex-type url: http://hl7.org/fhir/1.0/StructureDefinition/extension-Immunization.explanation base: http://hl7.org/fhir/StructureDefinition/Extension|5.0.0 version: 0.0.1-snapshot-2 required: [url]