description: This cross-version extension represents Observation.component.value[x] from http://hl7.org/fhir/StructureDefinition/Observation|1.0.2 for use in FHIR R4B. package_name: hl7.fhir.uv.xver-r2.r4b derivation: constraint name: Ext_R2_Observation_co_value type: Extension elements: valueTime: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: time short: Actual component result choiceOf: value index: 10 valueQuantity: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: Quantity short: Actual component result choiceOf: value index: 3 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} short: Actual component result choices: [valueQuantity, valueCodeableConcept, valueString, valueRange, valueRatio, valueSampledData, valueAttachment, valueTime, valueDateTime, valuePeriod] index: 2 valueString: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: string short: Actual component result choiceOf: value index: 5 valueRatio: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: Ratio short: Actual component result choiceOf: value index: 7 valueDateTime: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: dateTime short: Actual component result choiceOf: value index: 11 valueSampledData: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: SampledData short: Actual component result choiceOf: value index: 8 url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: 'http://hl7.org/fhir/1.0/StructureDefinition/extension-Observation.component.value'} index: 0 valueCodeableConcept: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: CodeableConcept short: Actual component result choiceOf: value index: 4 valuePeriod: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: Period short: Actual component result choiceOf: value index: 12 valueRange: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: Range short: Actual component result choiceOf: value index: 6 valueAttachment: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: Attachment short: Actual component result choiceOf: value index: 9 package_version: 0.0.1-snapshot-2 class: extension kind: complex-type url: http://hl7.org/fhir/1.0/StructureDefinition/extension-Observation.component.value base: http://hl7.org/fhir/StructureDefinition/Extension|4.3.0 version: 0.0.1-snapshot-2 required: [url]