description: This cross-version extension represents EvidenceVariable.characteristic.definitionByCombination from http://hl7.org/fhir/StructureDefinition/EvidenceVariable|5.0.0 for use in FHIR R4B. package_name: hl7.fhir.uv.xver-r5.r4b derivation: constraint name: Ext_R5_EvidenceVariable_ch_dEV type: Extension elements: extension: base: {max: '*', min: 0, path: Extension.extension} array: true min: 2 index: 0 slicing: rules: closed ordered: false discriminator: - {path: url, type: value} min: 2 slices: code: match: {url: code} schema: short: all-of | any-of | at-least | at-most | statistical | net-effect | dataset _required: true base: {max: '*', min: 0, path: Extension.extension} index: 1 elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: code} index: 2 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} short: all-of | any-of | at-least | at-most | statistical | net-effect | dataset choices: [valueCode] index: 4 valueCode: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: code short: all-of | any-of | at-least | at-most | statistical | net-effect | dataset choiceOf: value index: 5 required: [url] threshold: match: {url: threshold} schema: base: {max: '*', min: 0, path: Extension.extension} short: Provides the value of "n" when "at-least" or "at-most" codes are used index: 6 elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: threshold} index: 7 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} short: Provides the value of "n" when "at-least" or "at-most" codes are used choices: [valuePositiveInt] index: 9 valuePositiveInt: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: positiveInt short: Provides the value of "n" when "at-least" or "at-most" codes are used choiceOf: value index: 10 required: [url] characteristic: match: {url: characteristic} schema: min: 1 short: A defining factor of the characteristic index: 11 array: true elements: extension: base: {max: '*', min: 0, path: Extension.extension} array: true index: 12 slicing: rules: closed ordered: false discriminator: - {path: url, type: value} min: 0 slices: _datatype: match: {url: null} schema: type: Extension short: Data type name for EvidenceVariable.characteristic.definitionByCombination.characteristic from FHIR R5 url: http://hl7.org/fhir/StructureDefinition/_datatype|5.2.0 index: 13 elements: value: base: {max: '1', min: 0, path: 'Extension.value[x]'} pattern: {type: String, value: EvidenceVariable.characteristic} choices: [valueString] index: 15 valueString: type: string pattern: {type: String, value: EvidenceVariable.characteristic} base: {max: '1', min: 0, path: 'Extension.value[x]'} choiceOf: value index: 16 required: [valueString, value] url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: characteristic} index: 17 _required: true extensions: _datatype: url: http://hl7.org/fhir/StructureDefinition/_datatype|5.2.0 type: Extension short: Data type name for EvidenceVariable.characteristic.definitionByCombination.characteristic from FHIR R5 index: 13 elements: value: base: {max: '1', min: 0, path: 'Extension.value[x]'} pattern: {type: String, value: EvidenceVariable.characteristic} choices: [valueString] index: 15 valueString: type: string pattern: {type: String, value: EvidenceVariable.characteristic} base: {max: '1', min: 0, path: 'Extension.value[x]'} choiceOf: value index: 16 required: [valueString, value] base: {max: '*', min: 0, path: Extension.extension} required: [url] url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: 'http://hl7.org/fhir/5.0/StructureDefinition/extension-EvidenceVariable.characteristic.definitionByCombination'} index: 18 package_version: 0.0.1-snapshot-2 extensions: code: url: code short: all-of | any-of | at-least | at-most | statistical | net-effect | dataset _required: true base: {max: '*', min: 0, path: Extension.extension} index: 1 elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: code} index: 2 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} short: all-of | any-of | at-least | at-most | statistical | net-effect | dataset choices: [valueCode] index: 4 valueCode: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: code short: all-of | any-of | at-least | at-most | statistical | net-effect | dataset choiceOf: value index: 5 required: [url] threshold: url: threshold base: {max: '*', min: 0, path: Extension.extension} short: Provides the value of "n" when "at-least" or "at-most" codes are used index: 6 elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: threshold} index: 7 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} short: Provides the value of "n" when "at-least" or "at-most" codes are used choices: [valuePositiveInt] index: 9 valuePositiveInt: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: positiveInt short: Provides the value of "n" when "at-least" or "at-most" codes are used choiceOf: value index: 10 required: [url] characteristic: min: 1 short: A defining factor of the characteristic index: 11 array: true elements: extension: base: {max: '*', min: 0, path: Extension.extension} array: true index: 12 slicing: rules: closed ordered: false discriminator: - {path: url, type: value} min: 0 slices: _datatype: match: {url: null} schema: type: Extension short: Data type name for EvidenceVariable.characteristic.definitionByCombination.characteristic from FHIR R5 url: http://hl7.org/fhir/StructureDefinition/_datatype|5.2.0 index: 13 elements: value: base: {max: '1', min: 0, path: 'Extension.value[x]'} pattern: {type: String, value: EvidenceVariable.characteristic} choices: [valueString] index: 15 valueString: type: string pattern: {type: String, value: EvidenceVariable.characteristic} base: {max: '1', min: 0, path: 'Extension.value[x]'} choiceOf: value index: 16 required: [valueString, value] url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: characteristic} index: 17 _required: true extensions: _datatype: url: http://hl7.org/fhir/StructureDefinition/_datatype|5.2.0 type: Extension short: Data type name for EvidenceVariable.characteristic.definitionByCombination.characteristic from FHIR R5 index: 13 elements: value: base: {max: '1', min: 0, path: 'Extension.value[x]'} pattern: {type: String, value: EvidenceVariable.characteristic} choices: [valueString] index: 15 valueString: type: string pattern: {type: String, value: EvidenceVariable.characteristic} base: {max: '1', min: 0, path: 'Extension.value[x]'} choiceOf: value index: 16 required: [valueString, value] url: characteristic base: {max: '*', min: 0, path: Extension.extension} required: [url] class: extension kind: complex-type url: http://hl7.org/fhir/5.0/StructureDefinition/extension-EvidenceVariable.characteristic.definitionByCombination base: http://hl7.org/fhir/StructureDefinition/Extension|4.3.0 version: 0.0.1-snapshot-2 required: [url]