description: This cross-version extension represents Evidence.variableDefinition from http://hl7.org/fhir/StructureDefinition/Evidence|4.3.0 for use in FHIR R4.
package_name: hl7.fhir.uv.xver
derivation: constraint
name: Ext_R4B_Evidence_variableDefinition
type: Extension
elements:
  extension:
    base: {max: '*', min: 0, path: Extension.extension}
    array: true
    min: 1
    index: 0
    slicing:
      rules: closed
      ordered: false
      discriminator:
      - {path: url, type: value}
      min: 1
      slices:
        description:
          match: {url: description}
          schema:
            base: {max: '*', min: 0, path: Extension.extension}
            short: A text description or summary of the variable
            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: A text description or summary of the variable
                choices: [valueMarkdown]
                index: 4
              valueMarkdown:
                base: {max: '1', min: 0, path: 'Extension.value[x]'}
                type: markdown
                short: A text description or summary of the variable
                choiceOf: value
                index: 5
            required: [url]
        note:
          match: {url: note}
          schema:
            base: {max: '*', min: 0, path: Extension.extension}
            short: Footnotes and/or explanatory notes
            array: true
            index: 6
            elements:
              url:
                base: {max: '1', min: 1, path: Extension.url}
                pattern: {type: Uri, value: note}
                index: 7
              value:
                base: {max: '1', min: 0, path: 'Extension.value[x]'}
                short: Footnotes and/or explanatory notes
                choices: [valueAnnotation]
                index: 9
              valueAnnotation:
                base: {max: '1', min: 0, path: 'Extension.value[x]'}
                type: Annotation
                short: Footnotes and/or explanatory notes
                choiceOf: value
                index: 10
            required: [url]
        variableRole:
          match: {url: variableRole}
          schema:
            base: {max: '*', min: 0, path: Extension.extension}
            short: population | subpopulation | exposure | referenceExposure | measuredVariable | confounder
            _required: true
            index: 11
            elements:
              url:
                base: {max: '1', min: 1, path: Extension.url}
                pattern: {type: Uri, value: variableRole}
                index: 12
              value:
                base: {max: '1', min: 0, path: 'Extension.value[x]'}
                short: population | subpopulation | exposure | referenceExposure | measuredVariable | confounder
                choices: [valueCodeableConcept]
                index: 14
              valueCodeableConcept:
                base: {max: '1', min: 0, path: 'Extension.value[x]'}
                type: CodeableConcept
                short: population | subpopulation | exposure | referenceExposure | measuredVariable | confounder
                choiceOf: value
                index: 15
            required: [url]
        observed:
          match: {url: observed}
          schema:
            base: {max: '*', min: 0, path: Extension.extension}
            short: Definition of the actual variable related to the statistic(s)
            index: 16
            elements:
              url:
                base: {max: '1', min: 1, path: Extension.url}
                pattern: {type: Uri, value: observed}
                index: 17
              value:
                base: {max: '1', min: 0, path: 'Extension.value[x]'}
                short: Definition of the actual variable related to the statistic(s)
                choices: [valueReference]
                index: 19
              valueReference:
                base: {max: '1', min: 0, path: 'Extension.value[x]'}
                type: Reference
                short: Definition of the actual variable related to the statistic(s)
                choiceOf: value
                index: 20
            required: [url]
        intended:
          match: {url: intended}
          schema:
            base: {max: '*', min: 0, path: Extension.extension}
            short: Definition of the intended variable related to the Evidence
            index: 21
            elements:
              url:
                base: {max: '1', min: 1, path: Extension.url}
                pattern: {type: Uri, value: intended}
                index: 22
              value:
                base: {max: '1', min: 0, path: 'Extension.value[x]'}
                short: Definition of the intended variable related to the Evidence
                choices: [valueReference]
                index: 24
              valueReference:
                base: {max: '1', min: 0, path: 'Extension.value[x]'}
                type: Reference
                short: Definition of the intended variable related to the Evidence
                choiceOf: value
                index: 25
            required: [url]
        directnessMatch:
          match: {url: directnessMatch}
          schema:
            short: low | moderate | high | exact
            base: {max: '*', min: 0, path: Extension.extension}
            index: 26
            elements:
              url:
                base: {max: '1', min: 1, path: Extension.url}
                pattern: {type: Uri, value: directnessMatch}
                index: 27
              value:
                base: {max: '1', min: 0, path: 'Extension.value[x]'}
                short: low | moderate | high | exact
                choices: [valueCodeableConcept]
                index: 29
              valueCodeableConcept:
                base: {max: '1', min: 0, path: 'Extension.value[x]'}
                type: CodeableConcept
                short: low | moderate | high | exact
                choiceOf: value
                index: 30
            required: [url]
  url:
    base: {max: '1', min: 1, path: Extension.url}
    pattern: {type: Uri, value: 'http://hl7.org/fhir/4.3/StructureDefinition/extension-Evidence.variableDefinition'}
    index: 31
package_version: r4b.r4-0.0.1-snapshot-2
extensions:
  description:
    url: description
    base: {max: '*', min: 0, path: Extension.extension}
    short: A text description or summary of the variable
    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: A text description or summary of the variable
        choices: [valueMarkdown]
        index: 4
      valueMarkdown:
        base: {max: '1', min: 0, path: 'Extension.value[x]'}
        type: markdown
        short: A text description or summary of the variable
        choiceOf: value
        index: 5
    required: [url]
  note:
    url: note
    base: {max: '*', min: 0, path: Extension.extension}
    short: Footnotes and/or explanatory notes
    array: true
    index: 6
    elements:
      url:
        base: {max: '1', min: 1, path: Extension.url}
        pattern: {type: Uri, value: note}
        index: 7
      value:
        base: {max: '1', min: 0, path: 'Extension.value[x]'}
        short: Footnotes and/or explanatory notes
        choices: [valueAnnotation]
        index: 9
      valueAnnotation:
        base: {max: '1', min: 0, path: 'Extension.value[x]'}
        type: Annotation
        short: Footnotes and/or explanatory notes
        choiceOf: value
        index: 10
    required: [url]
  variableRole:
    url: variableRole
    base: {max: '*', min: 0, path: Extension.extension}
    short: population | subpopulation | exposure | referenceExposure | measuredVariable | confounder
    _required: true
    index: 11
    elements:
      url:
        base: {max: '1', min: 1, path: Extension.url}
        pattern: {type: Uri, value: variableRole}
        index: 12
      value:
        base: {max: '1', min: 0, path: 'Extension.value[x]'}
        short: population | subpopulation | exposure | referenceExposure | measuredVariable | confounder
        choices: [valueCodeableConcept]
        index: 14
      valueCodeableConcept:
        base: {max: '1', min: 0, path: 'Extension.value[x]'}
        type: CodeableConcept
        short: population | subpopulation | exposure | referenceExposure | measuredVariable | confounder
        choiceOf: value
        index: 15
    required: [url]
  observed:
    url: observed
    base: {max: '*', min: 0, path: Extension.extension}
    short: Definition of the actual variable related to the statistic(s)
    index: 16
    elements:
      url:
        base: {max: '1', min: 1, path: Extension.url}
        pattern: {type: Uri, value: observed}
        index: 17
      value:
        base: {max: '1', min: 0, path: 'Extension.value[x]'}
        short: Definition of the actual variable related to the statistic(s)
        choices: [valueReference]
        index: 19
      valueReference:
        base: {max: '1', min: 0, path: 'Extension.value[x]'}
        type: Reference
        short: Definition of the actual variable related to the statistic(s)
        choiceOf: value
        index: 20
    required: [url]
  intended:
    url: intended
    base: {max: '*', min: 0, path: Extension.extension}
    short: Definition of the intended variable related to the Evidence
    index: 21
    elements:
      url:
        base: {max: '1', min: 1, path: Extension.url}
        pattern: {type: Uri, value: intended}
        index: 22
      value:
        base: {max: '1', min: 0, path: 'Extension.value[x]'}
        short: Definition of the intended variable related to the Evidence
        choices: [valueReference]
        index: 24
      valueReference:
        base: {max: '1', min: 0, path: 'Extension.value[x]'}
        type: Reference
        short: Definition of the intended variable related to the Evidence
        choiceOf: value
        index: 25
    required: [url]
  directnessMatch:
    url: directnessMatch
    short: low | moderate | high | exact
    base: {max: '*', min: 0, path: Extension.extension}
    index: 26
    elements:
      url:
        base: {max: '1', min: 1, path: Extension.url}
        pattern: {type: Uri, value: directnessMatch}
        index: 27
      value:
        base: {max: '1', min: 0, path: 'Extension.value[x]'}
        short: low | moderate | high | exact
        choices: [valueCodeableConcept]
        index: 29
      valueCodeableConcept:
        base: {max: '1', min: 0, path: 'Extension.value[x]'}
        type: CodeableConcept
        short: low | moderate | high | exact
        choiceOf: value
        index: 30
    required: [url]
class: extension
kind: complex-type
url: http://hl7.org/fhir/4.3/StructureDefinition/extension-Evidence.variableDefinition
base: http://hl7.org/fhir/StructureDefinition/Extension|4.0.1
version: 0.0.1-snapshot-2
required: [url, extension]