description: This cross-version extension represents EvidenceVariable.characteristic.timeFromStart from http://hl7.org/fhir/StructureDefinition/EvidenceVariable|4.3.0 for use in FHIR R4.
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.r4-0.0.1-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|4.0.1
version: 0.0.1-snapshot-2
required: [url]