description: This cross-version extension represents EvidenceVariable.characteristic.timeFromStart from http://hl7.org/fhir/StructureDefinition/EvidenceVariable|4.3.0 for use in FHIR R5. package_name: hl7.fhir.uv.xver derivation: constraint name: Ext_R4B_EvidenceVariable_ch_timeFromStart 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: description: match: {url: description} schema: short: Human readable description base: {max: '*', min: 0, path: Extension.extension} index: 1 elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: description} index: 2 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} short: Human readable description choices: [valueString] index: 4 valueString: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: string short: Human readable description choiceOf: value index: 5 required: [url] quantity: match: {url: quantity} schema: base: {max: '*', min: 0, path: Extension.extension} short: Used to express the observation at a defined amount of time after the study start index: 6 elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: quantity} index: 7 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} short: Used to express the observation at a defined amount of time after the study start choices: [valueQuantity] index: 9 valueQuantity: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: Quantity short: Used to express the observation at a defined amount of time after the study start choiceOf: value index: 10 required: [url] range: match: {url: range} schema: base: {max: '*', min: 0, path: Extension.extension} short: Used to express the observation within a period after the study start index: 11 elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: range} index: 12 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} short: Used to express the observation within a period after the study start choices: [valueRange] index: 14 valueRange: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: Range short: Used to express the observation within a period after the study start choiceOf: value index: 15 required: [url] note: match: {url: note} schema: short: Used for footnotes or explanatory notes array: true base: {max: '*', min: 0, path: Extension.extension} index: 16 elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: note} index: 17 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} short: Used for footnotes or explanatory notes choices: [valueAnnotation] index: 19 valueAnnotation: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: Annotation short: Used for footnotes or explanatory notes choiceOf: value index: 20 required: [url] url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: 'http://hl7.org/fhir/4.3/StructureDefinition/extension-EvidenceVariable.characteristic.timeFromStart'} index: 21 package_version: r4b.r5-0.0.1-snapshot-2 extensions: description: url: description short: Human readable description base: {max: '*', min: 0, path: Extension.extension} index: 1 elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: description} index: 2 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} short: Human readable description choices: [valueString] index: 4 valueString: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: string short: Human readable description choiceOf: value index: 5 required: [url] quantity: url: quantity base: {max: '*', min: 0, path: Extension.extension} short: Used to express the observation at a defined amount of time after the study start index: 6 elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: quantity} index: 7 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} short: Used to express the observation at a defined amount of time after the study start choices: [valueQuantity] index: 9 valueQuantity: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: Quantity short: Used to express the observation at a defined amount of time after the study start choiceOf: value index: 10 required: [url] range: url: range base: {max: '*', min: 0, path: Extension.extension} short: Used to express the observation within a period after the study start index: 11 elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: range} index: 12 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} short: Used to express the observation within a period after the study start choices: [valueRange] index: 14 valueRange: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: Range short: Used to express the observation within a period after the study start choiceOf: value index: 15 required: [url] note: url: note short: Used for footnotes or explanatory notes array: true base: {max: '*', min: 0, path: Extension.extension} index: 16 elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: note} index: 17 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} short: Used for footnotes or explanatory notes choices: [valueAnnotation] index: 19 valueAnnotation: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: Annotation short: Used for footnotes or explanatory notes choiceOf: value index: 20 required: [url] class: extension kind: complex-type url: http://hl7.org/fhir/4.3/StructureDefinition/extension-EvidenceVariable.characteristic.timeFromStart base: http://hl7.org/fhir/StructureDefinition/Extension|5.0.0 version: 0.0.1-snapshot-2 required: [url]