description: This cross-version extension represents ResearchElementDefinition from http://hl7.org/fhir/StructureDefinition/ResearchElementDefinition|4.0.1 for use in FHIR R5.
package_name: rs/hl7.fhir.uv.xver
derivation: constraint
name: ext_R4_ResearchElementDefinition
type: Extension
elements:
  extension:
    array: true
    min: 3
    index: 0
    slicing:
      rules: closed
      ordered: false
      discriminator:
      - {path: url, type: value}
      min: 3
      slices:
        description:
          match: {url: null}
          schema:
            short: Natural language description of the research element definition
            isModifier: false
            index: 50
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: Natural language description of the research element definition
                choices: [valueMarkdown]
                index: 52
              valueMarkdown:
                base: {path: 'Extension.value[x]'}
                type: markdown
                short: Natural language description of the research element definition
                choiceOf: value
                index: 53
        date:
          match: {url: null}
          schema:
            short: Date last changed
            isModifier: false
            index: 38
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: Date last changed
                choices: [valueDateTime]
                index: 40
              valueDateTime:
                base: {path: 'Extension.value[x]'}
                type: dateTime
                short: Date last changed
                choiceOf: value
                index: 41
        endorser:
          match: {url: null}
          schema:
            short: Who endorsed the content
            isModifier: false
            array: true
            index: 102
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: Who endorsed the content
                choices: [valueContactDetail]
                index: 104
              valueContactDetail:
                base: {path: 'Extension.value[x]'}
                type: ContactDetail
                short: Who endorsed the content
                choiceOf: value
                index: 105
        publisher:
          match: {url: null}
          schema:
            short: Name of the publisher (organization or individual)
            isModifier: false
            index: 42
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: Name of the publisher (organization or individual)
                choices: [valueString]
                index: 44
              valueString:
                base: {path: 'Extension.value[x]'}
                type: string
                short: Name of the publisher (organization or individual)
                choiceOf: value
                index: 45
        approvalDate:
          match: {url: null}
          schema:
            short: When the research element definition was approved by publisher
            isModifier: false
            index: 78
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: When the research element definition was approved by publisher
                choices: [valueDate]
                index: 80
              valueDate:
                base: {path: 'Extension.value[x]'}
                type: date
                short: When the research element definition was approved by publisher
                choiceOf: value
                index: 81
        variableType:
          match: {url: null}
          schema:
            short: dichotomous | continuous | descriptive
            isModifier: false
            index: 118
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: dichotomous | continuous | descriptive
                choices: [valueCode]
                index: 120
              valueCode:
                base: {path: 'Extension.value[x]'}
                type: code
                short: dichotomous | continuous | descriptive
                choiceOf: value
                index: 121
        jurisdiction:
          match: {url: null}
          schema:
            short: Intended jurisdiction for research element definition (if applicable)
            isModifier: false
            array: true
            index: 62
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: Intended jurisdiction for research element definition (if applicable)
                choices: [valueCodeableConcept]
                index: 64
              valueCodeableConcept:
                base: {path: 'Extension.value[x]'}
                type: CodeableConcept
                short: Intended jurisdiction for research element definition (if applicable)
                choiceOf: value
                index: 65
        purpose:
          match: {url: null}
          schema:
            short: Why this research element definition is defined
            isModifier: false
            index: 66
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: Why this research element definition is defined
                choices: [valueMarkdown]
                index: 68
              valueMarkdown:
                base: {path: 'Extension.value[x]'}
                type: markdown
                short: Why this research element definition is defined
                choiceOf: value
                index: 69
        name:
          match: {url: null}
          schema:
            short: Name for this research element definition (computer friendly)
            isModifier: false
            index: 9
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: Name for this research element definition (computer friendly)
                choices: [valueString]
                index: 11
              valueString:
                base: {path: 'Extension.value[x]'}
                type: string
                short: Name for this research element definition (computer friendly)
                choiceOf: value
                index: 12
        useContext:
          match: {url: null}
          schema:
            short: The context that the content is intended to support
            isModifier: false
            array: true
            index: 58
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: The context that the content is intended to support
                choices: [valueUsageContext]
                index: 60
              valueUsageContext:
                base: {path: 'Extension.value[x]'}
                type: UsageContext
                short: The context that the content is intended to support
                choiceOf: value
                index: 61
        copyright:
          match: {url: null}
          schema:
            short: Use and/or publishing restrictions
            isModifier: false
            index: 74
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: Use and/or publishing restrictions
                choices: [valueMarkdown]
                index: 76
              valueMarkdown:
                base: {path: 'Extension.value[x]'}
                type: markdown
                short: Use and/or publishing restrictions
                choiceOf: value
                index: 77
        type:
          match: {url: null}
          schema:
            short: population | exposure | outcome
            isModifier: false
            _required: true
            index: 114
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: population | exposure | outcome
                choices: [valueCode]
                index: 116
              valueCode:
                base: {path: 'Extension.value[x]'}
                type: code
                short: population | exposure | outcome
                choiceOf: value
                index: 117
        experimental:
          match: {url: null}
          schema:
            short: For testing purposes, not real usage
            isModifier: false
            index: 29
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: For testing purposes, not real usage
                choices: [valueBoolean]
                index: 31
              valueBoolean:
                base: {path: 'Extension.value[x]'}
                type: boolean
                short: For testing purposes, not real usage
                choiceOf: value
                index: 32
        topic:
          match: {url: null}
          schema:
            short: The category of the ResearchElementDefinition, such as Education, Treatment, Assessment, etc.
            isModifier: false
            array: true
            index: 90
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: The category of the ResearchElementDefinition, such as Education, Treatment, Assessment, etc.
                choices: [valueCodeableConcept]
                index: 92
              valueCodeableConcept:
                base: {path: 'Extension.value[x]'}
                type: CodeableConcept
                short: The category of the ResearchElementDefinition, such as Education, Treatment, Assessment, etc.
                choiceOf: value
                index: 93
        title:
          match: {url: null}
          schema:
            short: Name for this research element definition (human friendly)
            isModifier: false
            index: 13
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: Name for this research element definition (human friendly)
                choices: [valueString]
                index: 15
              valueString:
                base: {path: 'Extension.value[x]'}
                type: string
                short: Name for this research element definition (human friendly)
                choiceOf: value
                index: 16
        subject[x]:
          match: {url: null}
          schema:
            short: E.g. Patient, Practitioner, RelatedPerson, Organization, Location, Device
            isModifier: false
            index: 33
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: E.g. Patient, Practitioner, RelatedPerson, Organization, Location, Device
                choices: [valueCodeableConcept, valueReference]
                index: 35
              valueCodeableConcept:
                base: {path: 'Extension.value[x]'}
                type: CodeableConcept
                short: E.g. Patient, Practitioner, RelatedPerson, Organization, Location, Device
                choiceOf: value
                index: 36
              valueReference:
                base: {path: 'Extension.value[x]'}
                type: Reference
                short: E.g. Patient, Practitioner, RelatedPerson, Organization, Location, Device
                choiceOf: value
                refers: ['http://hl7.org/fhir/StructureDefinition/Group']
                index: 37
        library:
          match: {url: null}
          schema:
            short: Logic used by the ResearchElementDefinition
            isModifier: false
            array: true
            index: 110
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: Logic used by the ResearchElementDefinition
                choices: [valueCanonical]
                index: 112
              valueCanonical:
                base: {path: 'Extension.value[x]'}
                type: canonical
                short: Logic used by the ResearchElementDefinition
                choiceOf: value
                index: 113
        characteristic:
          match: {url: null}
          schema:
            min: 1
            isModifier: false
            short: What defines the members of the research element
            index: 122
            array: true
            elements:
              extension:
                array: true
                min: 1
                index: 123
                slicing:
                  rules: closed
                  ordered: false
                  discriminator:
                  - {path: url, type: value}
                  min: 1
                  slices:
                    studyEffective[x]:
                      match: {url: null}
                      schema:
                        short: What time period does the study cover
                        isModifier: false
                        index: 147
                        elements:
                          value:
                            base: {path: 'Extension.value[x]'}
                            short: What time period does the study cover
                            choices: [valueDateTime, valuePeriod, valueDuration, valueTiming]
                            index: 149
                          valueDateTime:
                            base: {path: 'Extension.value[x]'}
                            type: dateTime
                            short: What time period does the study cover
                            choiceOf: value
                            index: 150
                          valuePeriod:
                            base: {path: 'Extension.value[x]'}
                            type: Period
                            short: What time period does the study cover
                            choiceOf: value
                            index: 151
                          valueDuration:
                            base: {path: 'Extension.value[x]'}
                            type: Duration
                            short: What time period does the study cover
                            choiceOf: value
                            index: 152
                          valueTiming:
                            base: {path: 'Extension.value[x]'}
                            type: Timing
                            short: What time period does the study cover
                            choiceOf: value
                            index: 153
                    exclude:
                      match: {url: null}
                      schema:
                        short: Whether the characteristic includes or excludes members
                        isModifier: false
                        index: 135
                        elements:
                          value:
                            base: {path: 'Extension.value[x]'}
                            short: Whether the characteristic includes or excludes members
                            choices: [valueBoolean]
                            index: 137
                          valueBoolean:
                            base: {path: 'Extension.value[x]'}
                            type: boolean
                            short: Whether the characteristic includes or excludes members
                            choiceOf: value
                            index: 138
                    participantEffective[x]:
                      match: {url: null}
                      schema:
                        short: What time period do participants cover
                        isModifier: false
                        index: 166
                        elements:
                          value:
                            base: {path: 'Extension.value[x]'}
                            short: What time period do participants cover
                            choices: [valueDateTime, valuePeriod, valueDuration, valueTiming]
                            index: 168
                          valueDateTime:
                            base: {path: 'Extension.value[x]'}
                            type: dateTime
                            short: What time period do participants cover
                            choiceOf: value
                            index: 169
                          valuePeriod:
                            base: {path: 'Extension.value[x]'}
                            type: Period
                            short: What time period do participants cover
                            choiceOf: value
                            index: 170
                          valueDuration:
                            base: {path: 'Extension.value[x]'}
                            type: Duration
                            short: What time period do participants cover
                            choiceOf: value
                            index: 171
                          valueTiming:
                            base: {path: 'Extension.value[x]'}
                            type: Timing
                            short: What time period do participants cover
                            choiceOf: value
                            index: 172
                    studyEffectiveGroupMeasure:
                      match: {url: null}
                      schema:
                        short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
                        isModifier: false
                        index: 158
                        elements:
                          value:
                            base: {path: 'Extension.value[x]'}
                            short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
                            choices: [valueCode]
                            index: 160
                          valueCode:
                            base: {path: 'Extension.value[x]'}
                            type: code
                            short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
                            choiceOf: value
                            index: 161
                    participantEffectiveGroupMeasure:
                      match: {url: null}
                      schema:
                        short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
                        isModifier: false
                        index: 177
                        elements:
                          value:
                            base: {path: 'Extension.value[x]'}
                            short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
                            choices: [valueCode]
                            index: 179
                          valueCode:
                            base: {path: 'Extension.value[x]'}
                            type: code
                            short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
                            choiceOf: value
                            index: 180
                    studyEffectiveDescription:
                      match: {url: null}
                      schema:
                        short: What time period does the study cover
                        isModifier: false
                        index: 143
                        elements:
                          value:
                            base: {path: 'Extension.value[x]'}
                            short: What time period does the study cover
                            choices: [valueString]
                            index: 145
                          valueString:
                            base: {path: 'Extension.value[x]'}
                            type: string
                            short: What time period does the study cover
                            choiceOf: value
                            index: 146
                    studyEffectiveTimeFromStart:
                      match: {url: null}
                      schema:
                        short: Observation time from study start
                        isModifier: false
                        index: 154
                        elements:
                          value:
                            base: {path: 'Extension.value[x]'}
                            short: Observation time from study start
                            choices: [valueDuration]
                            index: 156
                          valueDuration:
                            base: {path: 'Extension.value[x]'}
                            type: Duration
                            short: Observation time from study start
                            choiceOf: value
                            index: 157
                    unitOfMeasure:
                      match: {url: null}
                      schema:
                        short: What unit is the outcome described in?
                        isModifier: false
                        index: 139
                        elements:
                          value:
                            base: {path: 'Extension.value[x]'}
                            short: What unit is the outcome described in?
                            choices: [valueCodeableConcept]
                            index: 141
                          valueCodeableConcept:
                            base: {path: 'Extension.value[x]'}
                            type: CodeableConcept
                            short: What unit is the outcome described in?
                            choiceOf: value
                            index: 142
                    participantEffectiveDescription:
                      match: {url: null}
                      schema:
                        short: What time period do participants cover
                        isModifier: false
                        index: 162
                        elements:
                          value:
                            base: {path: 'Extension.value[x]'}
                            short: What time period do participants cover
                            choices: [valueString]
                            index: 164
                          valueString:
                            base: {path: 'Extension.value[x]'}
                            type: string
                            short: What time period do participants cover
                            choiceOf: value
                            index: 165
                    usageContext:
                      match: {url: null}
                      schema:
                        short: What code/value pairs define members?
                        isModifier: false
                        array: true
                        index: 131
                        elements:
                          value:
                            base: {path: 'Extension.value[x]'}
                            short: What code/value pairs define members?
                            choices: [valueUsageContext]
                            index: 133
                          valueUsageContext:
                            base: {path: 'Extension.value[x]'}
                            type: UsageContext
                            short: What code/value pairs define members?
                            choiceOf: value
                            index: 134
                    definition[x]:
                      match: {url: null}
                      schema:
                        short: What code or expression defines members?
                        isModifier: false
                        _required: true
                        index: 124
                        elements:
                          value:
                            base: {path: 'Extension.value[x]'}
                            short: What code or expression defines members?
                            choices: [valueCodeableConcept, valueCanonical, valueExpression, valueDataRequirement]
                            index: 126
                          valueCodeableConcept:
                            base: {path: 'Extension.value[x]'}
                            type: CodeableConcept
                            short: What code or expression defines members?
                            choiceOf: value
                            index: 127
                          valueCanonical:
                            base: {path: 'Extension.value[x]'}
                            type: canonical
                            short: What code or expression defines members?
                            choiceOf: value
                            index: 128
                          valueExpression:
                            base: {path: 'Extension.value[x]'}
                            type: Expression
                            short: What code or expression defines members?
                            choiceOf: value
                            index: 129
                          valueDataRequirement:
                            base: {path: 'Extension.value[x]'}
                            type: DataRequirement
                            short: What code or expression defines members?
                            choiceOf: value
                            index: 130
                    participantEffectiveTimeFromStart:
                      match: {url: null}
                      schema:
                        short: Observation time from study start
                        isModifier: false
                        index: 173
                        elements:
                          value:
                            base: {path: 'Extension.value[x]'}
                            short: Observation time from study start
                            choices: [valueDuration]
                            index: 175
                          valueDuration:
                            base: {path: 'Extension.value[x]'}
                            type: Duration
                            short: Observation time from study start
                            choiceOf: value
                            index: 176
            _required: true
            extensions:
              studyEffective[x]:
                url: null
                short: What time period does the study cover
                isModifier: false
                index: 147
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: What time period does the study cover
                    choices: [valueDateTime, valuePeriod, valueDuration, valueTiming]
                    index: 149
                  valueDateTime:
                    base: {path: 'Extension.value[x]'}
                    type: dateTime
                    short: What time period does the study cover
                    choiceOf: value
                    index: 150
                  valuePeriod:
                    base: {path: 'Extension.value[x]'}
                    type: Period
                    short: What time period does the study cover
                    choiceOf: value
                    index: 151
                  valueDuration:
                    base: {path: 'Extension.value[x]'}
                    type: Duration
                    short: What time period does the study cover
                    choiceOf: value
                    index: 152
                  valueTiming:
                    base: {path: 'Extension.value[x]'}
                    type: Timing
                    short: What time period does the study cover
                    choiceOf: value
                    index: 153
              exclude:
                url: null
                short: Whether the characteristic includes or excludes members
                isModifier: false
                index: 135
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: Whether the characteristic includes or excludes members
                    choices: [valueBoolean]
                    index: 137
                  valueBoolean:
                    base: {path: 'Extension.value[x]'}
                    type: boolean
                    short: Whether the characteristic includes or excludes members
                    choiceOf: value
                    index: 138
              participantEffective[x]:
                url: null
                short: What time period do participants cover
                isModifier: false
                index: 166
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: What time period do participants cover
                    choices: [valueDateTime, valuePeriod, valueDuration, valueTiming]
                    index: 168
                  valueDateTime:
                    base: {path: 'Extension.value[x]'}
                    type: dateTime
                    short: What time period do participants cover
                    choiceOf: value
                    index: 169
                  valuePeriod:
                    base: {path: 'Extension.value[x]'}
                    type: Period
                    short: What time period do participants cover
                    choiceOf: value
                    index: 170
                  valueDuration:
                    base: {path: 'Extension.value[x]'}
                    type: Duration
                    short: What time period do participants cover
                    choiceOf: value
                    index: 171
                  valueTiming:
                    base: {path: 'Extension.value[x]'}
                    type: Timing
                    short: What time period do participants cover
                    choiceOf: value
                    index: 172
              studyEffectiveGroupMeasure:
                url: null
                short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
                isModifier: false
                index: 158
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
                    choices: [valueCode]
                    index: 160
                  valueCode:
                    base: {path: 'Extension.value[x]'}
                    type: code
                    short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
                    choiceOf: value
                    index: 161
              participantEffectiveGroupMeasure:
                url: null
                short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
                isModifier: false
                index: 177
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
                    choices: [valueCode]
                    index: 179
                  valueCode:
                    base: {path: 'Extension.value[x]'}
                    type: code
                    short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
                    choiceOf: value
                    index: 180
              studyEffectiveDescription:
                url: null
                short: What time period does the study cover
                isModifier: false
                index: 143
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: What time period does the study cover
                    choices: [valueString]
                    index: 145
                  valueString:
                    base: {path: 'Extension.value[x]'}
                    type: string
                    short: What time period does the study cover
                    choiceOf: value
                    index: 146
              studyEffectiveTimeFromStart:
                url: null
                short: Observation time from study start
                isModifier: false
                index: 154
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: Observation time from study start
                    choices: [valueDuration]
                    index: 156
                  valueDuration:
                    base: {path: 'Extension.value[x]'}
                    type: Duration
                    short: Observation time from study start
                    choiceOf: value
                    index: 157
              unitOfMeasure:
                url: null
                short: What unit is the outcome described in?
                isModifier: false
                index: 139
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: What unit is the outcome described in?
                    choices: [valueCodeableConcept]
                    index: 141
                  valueCodeableConcept:
                    base: {path: 'Extension.value[x]'}
                    type: CodeableConcept
                    short: What unit is the outcome described in?
                    choiceOf: value
                    index: 142
              participantEffectiveDescription:
                url: null
                short: What time period do participants cover
                isModifier: false
                index: 162
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: What time period do participants cover
                    choices: [valueString]
                    index: 164
                  valueString:
                    base: {path: 'Extension.value[x]'}
                    type: string
                    short: What time period do participants cover
                    choiceOf: value
                    index: 165
              usageContext:
                url: null
                short: What code/value pairs define members?
                isModifier: false
                array: true
                index: 131
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: What code/value pairs define members?
                    choices: [valueUsageContext]
                    index: 133
                  valueUsageContext:
                    base: {path: 'Extension.value[x]'}
                    type: UsageContext
                    short: What code/value pairs define members?
                    choiceOf: value
                    index: 134
              definition[x]:
                url: null
                short: What code or expression defines members?
                isModifier: false
                _required: true
                index: 124
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: What code or expression defines members?
                    choices: [valueCodeableConcept, valueCanonical, valueExpression, valueDataRequirement]
                    index: 126
                  valueCodeableConcept:
                    base: {path: 'Extension.value[x]'}
                    type: CodeableConcept
                    short: What code or expression defines members?
                    choiceOf: value
                    index: 127
                  valueCanonical:
                    base: {path: 'Extension.value[x]'}
                    type: canonical
                    short: What code or expression defines members?
                    choiceOf: value
                    index: 128
                  valueExpression:
                    base: {path: 'Extension.value[x]'}
                    type: Expression
                    short: What code or expression defines members?
                    choiceOf: value
                    index: 129
                  valueDataRequirement:
                    base: {path: 'Extension.value[x]'}
                    type: DataRequirement
                    short: What code or expression defines members?
                    choiceOf: value
                    index: 130
              participantEffectiveTimeFromStart:
                url: null
                short: Observation time from study start
                isModifier: false
                index: 173
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: Observation time from study start
                    choices: [valueDuration]
                    index: 175
                  valueDuration:
                    base: {path: 'Extension.value[x]'}
                    type: Duration
                    short: Observation time from study start
                    choiceOf: value
                    index: 176
            required: [extension]
        usage:
          match: {url: null}
          schema:
            short: Describes the clinical usage of the ResearchElementDefinition
            isModifier: false
            index: 70
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: Describes the clinical usage of the ResearchElementDefinition
                choices: [valueString]
                index: 72
              valueString:
                base: {path: 'Extension.value[x]'}
                type: string
                short: Describes the clinical usage of the ResearchElementDefinition
                choiceOf: value
                index: 73
        status:
          match: {url: null}
          schema:
            isModifier: true
            short: draft | active | retired | unknown
            _required: true
            isModifierReason: This is labeled as "Is Modifier" because applications should not use a retired {{title}} without due consideration
            index: 25
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: draft | active | retired | unknown
                choices: [valueCode]
                index: 27
              valueCode:
                base: {path: 'Extension.value[x]'}
                type: code
                short: draft | active | retired | unknown
                choiceOf: value
                index: 28
        subtitle:
          match: {url: null}
          schema:
            short: Subordinate title of the ResearchElementDefinition
            isModifier: false
            index: 21
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: Subordinate title of the ResearchElementDefinition
                choices: [valueString]
                index: 23
              valueString:
                base: {path: 'Extension.value[x]'}
                type: string
                short: Subordinate title of the ResearchElementDefinition
                choiceOf: value
                index: 24
        comment:
          match: {url: null}
          schema:
            short: Used for footnotes or explanatory notes
            isModifier: false
            array: true
            index: 54
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: Used for footnotes or explanatory notes
                choices: [valueString]
                index: 56
              valueString:
                base: {path: 'Extension.value[x]'}
                type: string
                short: Used for footnotes or explanatory notes
                choiceOf: value
                index: 57
        url:
          match: {url: null}
          schema:
            short: Canonical identifier for this research element definition, represented as a URI (globally unique)
            isModifier: false
            index: 1
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: Canonical identifier for this research element definition, represented as a URI (globally unique)
                choices: [valueUri]
                index: 3
              valueUri:
                base: {path: 'Extension.value[x]'}
                type: uri
                short: Canonical identifier for this research element definition, represented as a URI (globally unique)
                choiceOf: value
                index: 4
        lastReviewDate:
          match: {url: null}
          schema:
            short: When the research element definition was last reviewed
            isModifier: false
            index: 82
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: When the research element definition was last reviewed
                choices: [valueDate]
                index: 84
              valueDate:
                base: {path: 'Extension.value[x]'}
                type: date
                short: When the research element definition was last reviewed
                choiceOf: value
                index: 85
        editor:
          match: {url: null}
          schema:
            short: Who edited the content
            isModifier: false
            array: true
            index: 94
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: Who edited the content
                choices: [valueContactDetail]
                index: 96
              valueContactDetail:
                base: {path: 'Extension.value[x]'}
                type: ContactDetail
                short: Who edited the content
                choiceOf: value
                index: 97
        reviewer:
          match: {url: null}
          schema:
            short: Who reviewed the content
            isModifier: false
            array: true
            index: 98
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: Who reviewed the content
                choices: [valueContactDetail]
                index: 100
              valueContactDetail:
                base: {path: 'Extension.value[x]'}
                type: ContactDetail
                short: Who reviewed the content
                choiceOf: value
                index: 101
        shortTitle:
          match: {url: null}
          schema:
            short: Title for use in informal contexts
            isModifier: false
            index: 17
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: Title for use in informal contexts
                choices: [valueString]
                index: 19
              valueString:
                base: {path: 'Extension.value[x]'}
                type: string
                short: Title for use in informal contexts
                choiceOf: value
                index: 20
        version:
          match: {url: null}
          schema:
            short: Business version of the research element definition
            isModifier: false
            index: 5
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: Business version of the research element definition
                choices: [valueString]
                index: 7
              valueString:
                base: {path: 'Extension.value[x]'}
                type: string
                short: Business version of the research element definition
                choiceOf: value
                index: 8
        relatedArtifact:
          match: {url: null}
          schema:
            short: Additional documentation, citations, etc.
            isModifier: false
            array: true
            index: 106
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: Additional documentation, citations, etc.
                choices: [valueRelatedArtifact]
                index: 108
              valueRelatedArtifact:
                base: {path: 'Extension.value[x]'}
                type: RelatedArtifact
                short: Additional documentation, citations, etc.
                choiceOf: value
                index: 109
        contact:
          match: {url: null}
          schema:
            short: Contact details for the publisher
            isModifier: false
            array: true
            index: 46
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: Contact details for the publisher
                choices: [valueContactDetail]
                index: 48
              valueContactDetail:
                base: {path: 'Extension.value[x]'}
                type: ContactDetail
                short: Contact details for the publisher
                choiceOf: value
                index: 49
        effectivePeriod:
          match: {url: null}
          schema:
            short: When the research element definition is expected to be used
            isModifier: false
            index: 86
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: When the research element definition is expected to be used
                choices: [valuePeriod]
                index: 88
              valuePeriod:
                base: {path: 'Extension.value[x]'}
                type: Period
                short: When the research element definition is expected to be used
                choiceOf: value
                index: 89
  url:
    pattern: {type: uri, value: 'http://hl7.org/fhir/4.0/StructureDefinition/extension-ResearchElementDefinition'}
    type: uri
    index: 181
package_version: r4.r5-0.0.1-snapshot-1
extensions:
  description:
    url: null
    short: Natural language description of the research element definition
    isModifier: false
    index: 50
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: Natural language description of the research element definition
        choices: [valueMarkdown]
        index: 52
      valueMarkdown:
        base: {path: 'Extension.value[x]'}
        type: markdown
        short: Natural language description of the research element definition
        choiceOf: value
        index: 53
  date:
    url: null
    short: Date last changed
    isModifier: false
    index: 38
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: Date last changed
        choices: [valueDateTime]
        index: 40
      valueDateTime:
        base: {path: 'Extension.value[x]'}
        type: dateTime
        short: Date last changed
        choiceOf: value
        index: 41
  endorser:
    url: null
    short: Who endorsed the content
    isModifier: false
    array: true
    index: 102
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: Who endorsed the content
        choices: [valueContactDetail]
        index: 104
      valueContactDetail:
        base: {path: 'Extension.value[x]'}
        type: ContactDetail
        short: Who endorsed the content
        choiceOf: value
        index: 105
  publisher:
    url: null
    short: Name of the publisher (organization or individual)
    isModifier: false
    index: 42
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: Name of the publisher (organization or individual)
        choices: [valueString]
        index: 44
      valueString:
        base: {path: 'Extension.value[x]'}
        type: string
        short: Name of the publisher (organization or individual)
        choiceOf: value
        index: 45
  approvalDate:
    url: null
    short: When the research element definition was approved by publisher
    isModifier: false
    index: 78
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: When the research element definition was approved by publisher
        choices: [valueDate]
        index: 80
      valueDate:
        base: {path: 'Extension.value[x]'}
        type: date
        short: When the research element definition was approved by publisher
        choiceOf: value
        index: 81
  variableType:
    url: null
    short: dichotomous | continuous | descriptive
    isModifier: false
    index: 118
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: dichotomous | continuous | descriptive
        choices: [valueCode]
        index: 120
      valueCode:
        base: {path: 'Extension.value[x]'}
        type: code
        short: dichotomous | continuous | descriptive
        choiceOf: value
        index: 121
  jurisdiction:
    url: null
    short: Intended jurisdiction for research element definition (if applicable)
    isModifier: false
    array: true
    index: 62
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: Intended jurisdiction for research element definition (if applicable)
        choices: [valueCodeableConcept]
        index: 64
      valueCodeableConcept:
        base: {path: 'Extension.value[x]'}
        type: CodeableConcept
        short: Intended jurisdiction for research element definition (if applicable)
        choiceOf: value
        index: 65
  purpose:
    url: null
    short: Why this research element definition is defined
    isModifier: false
    index: 66
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: Why this research element definition is defined
        choices: [valueMarkdown]
        index: 68
      valueMarkdown:
        base: {path: 'Extension.value[x]'}
        type: markdown
        short: Why this research element definition is defined
        choiceOf: value
        index: 69
  name:
    url: null
    short: Name for this research element definition (computer friendly)
    isModifier: false
    index: 9
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: Name for this research element definition (computer friendly)
        choices: [valueString]
        index: 11
      valueString:
        base: {path: 'Extension.value[x]'}
        type: string
        short: Name for this research element definition (computer friendly)
        choiceOf: value
        index: 12
  useContext:
    url: null
    short: The context that the content is intended to support
    isModifier: false
    array: true
    index: 58
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: The context that the content is intended to support
        choices: [valueUsageContext]
        index: 60
      valueUsageContext:
        base: {path: 'Extension.value[x]'}
        type: UsageContext
        short: The context that the content is intended to support
        choiceOf: value
        index: 61
  copyright:
    url: null
    short: Use and/or publishing restrictions
    isModifier: false
    index: 74
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: Use and/or publishing restrictions
        choices: [valueMarkdown]
        index: 76
      valueMarkdown:
        base: {path: 'Extension.value[x]'}
        type: markdown
        short: Use and/or publishing restrictions
        choiceOf: value
        index: 77
  type:
    url: null
    short: population | exposure | outcome
    isModifier: false
    _required: true
    index: 114
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: population | exposure | outcome
        choices: [valueCode]
        index: 116
      valueCode:
        base: {path: 'Extension.value[x]'}
        type: code
        short: population | exposure | outcome
        choiceOf: value
        index: 117
  experimental:
    url: null
    short: For testing purposes, not real usage
    isModifier: false
    index: 29
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: For testing purposes, not real usage
        choices: [valueBoolean]
        index: 31
      valueBoolean:
        base: {path: 'Extension.value[x]'}
        type: boolean
        short: For testing purposes, not real usage
        choiceOf: value
        index: 32
  topic:
    url: null
    short: The category of the ResearchElementDefinition, such as Education, Treatment, Assessment, etc.
    isModifier: false
    array: true
    index: 90
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: The category of the ResearchElementDefinition, such as Education, Treatment, Assessment, etc.
        choices: [valueCodeableConcept]
        index: 92
      valueCodeableConcept:
        base: {path: 'Extension.value[x]'}
        type: CodeableConcept
        short: The category of the ResearchElementDefinition, such as Education, Treatment, Assessment, etc.
        choiceOf: value
        index: 93
  title:
    url: null
    short: Name for this research element definition (human friendly)
    isModifier: false
    index: 13
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: Name for this research element definition (human friendly)
        choices: [valueString]
        index: 15
      valueString:
        base: {path: 'Extension.value[x]'}
        type: string
        short: Name for this research element definition (human friendly)
        choiceOf: value
        index: 16
  subject[x]:
    url: null
    short: E.g. Patient, Practitioner, RelatedPerson, Organization, Location, Device
    isModifier: false
    index: 33
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: E.g. Patient, Practitioner, RelatedPerson, Organization, Location, Device
        choices: [valueCodeableConcept, valueReference]
        index: 35
      valueCodeableConcept:
        base: {path: 'Extension.value[x]'}
        type: CodeableConcept
        short: E.g. Patient, Practitioner, RelatedPerson, Organization, Location, Device
        choiceOf: value
        index: 36
      valueReference:
        base: {path: 'Extension.value[x]'}
        type: Reference
        short: E.g. Patient, Practitioner, RelatedPerson, Organization, Location, Device
        choiceOf: value
        refers: ['http://hl7.org/fhir/StructureDefinition/Group']
        index: 37
  library:
    url: null
    short: Logic used by the ResearchElementDefinition
    isModifier: false
    array: true
    index: 110
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: Logic used by the ResearchElementDefinition
        choices: [valueCanonical]
        index: 112
      valueCanonical:
        base: {path: 'Extension.value[x]'}
        type: canonical
        short: Logic used by the ResearchElementDefinition
        choiceOf: value
        index: 113
  characteristic:
    min: 1
    isModifier: false
    short: What defines the members of the research element
    index: 122
    array: true
    elements:
      extension:
        array: true
        min: 1
        index: 123
        slicing:
          rules: closed
          ordered: false
          discriminator:
          - {path: url, type: value}
          min: 1
          slices:
            studyEffective[x]:
              match: {url: null}
              schema:
                short: What time period does the study cover
                isModifier: false
                index: 147
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: What time period does the study cover
                    choices: [valueDateTime, valuePeriod, valueDuration, valueTiming]
                    index: 149
                  valueDateTime:
                    base: {path: 'Extension.value[x]'}
                    type: dateTime
                    short: What time period does the study cover
                    choiceOf: value
                    index: 150
                  valuePeriod:
                    base: {path: 'Extension.value[x]'}
                    type: Period
                    short: What time period does the study cover
                    choiceOf: value
                    index: 151
                  valueDuration:
                    base: {path: 'Extension.value[x]'}
                    type: Duration
                    short: What time period does the study cover
                    choiceOf: value
                    index: 152
                  valueTiming:
                    base: {path: 'Extension.value[x]'}
                    type: Timing
                    short: What time period does the study cover
                    choiceOf: value
                    index: 153
            exclude:
              match: {url: null}
              schema:
                short: Whether the characteristic includes or excludes members
                isModifier: false
                index: 135
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: Whether the characteristic includes or excludes members
                    choices: [valueBoolean]
                    index: 137
                  valueBoolean:
                    base: {path: 'Extension.value[x]'}
                    type: boolean
                    short: Whether the characteristic includes or excludes members
                    choiceOf: value
                    index: 138
            participantEffective[x]:
              match: {url: null}
              schema:
                short: What time period do participants cover
                isModifier: false
                index: 166
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: What time period do participants cover
                    choices: [valueDateTime, valuePeriod, valueDuration, valueTiming]
                    index: 168
                  valueDateTime:
                    base: {path: 'Extension.value[x]'}
                    type: dateTime
                    short: What time period do participants cover
                    choiceOf: value
                    index: 169
                  valuePeriod:
                    base: {path: 'Extension.value[x]'}
                    type: Period
                    short: What time period do participants cover
                    choiceOf: value
                    index: 170
                  valueDuration:
                    base: {path: 'Extension.value[x]'}
                    type: Duration
                    short: What time period do participants cover
                    choiceOf: value
                    index: 171
                  valueTiming:
                    base: {path: 'Extension.value[x]'}
                    type: Timing
                    short: What time period do participants cover
                    choiceOf: value
                    index: 172
            studyEffectiveGroupMeasure:
              match: {url: null}
              schema:
                short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
                isModifier: false
                index: 158
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
                    choices: [valueCode]
                    index: 160
                  valueCode:
                    base: {path: 'Extension.value[x]'}
                    type: code
                    short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
                    choiceOf: value
                    index: 161
            participantEffectiveGroupMeasure:
              match: {url: null}
              schema:
                short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
                isModifier: false
                index: 177
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
                    choices: [valueCode]
                    index: 179
                  valueCode:
                    base: {path: 'Extension.value[x]'}
                    type: code
                    short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
                    choiceOf: value
                    index: 180
            studyEffectiveDescription:
              match: {url: null}
              schema:
                short: What time period does the study cover
                isModifier: false
                index: 143
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: What time period does the study cover
                    choices: [valueString]
                    index: 145
                  valueString:
                    base: {path: 'Extension.value[x]'}
                    type: string
                    short: What time period does the study cover
                    choiceOf: value
                    index: 146
            studyEffectiveTimeFromStart:
              match: {url: null}
              schema:
                short: Observation time from study start
                isModifier: false
                index: 154
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: Observation time from study start
                    choices: [valueDuration]
                    index: 156
                  valueDuration:
                    base: {path: 'Extension.value[x]'}
                    type: Duration
                    short: Observation time from study start
                    choiceOf: value
                    index: 157
            unitOfMeasure:
              match: {url: null}
              schema:
                short: What unit is the outcome described in?
                isModifier: false
                index: 139
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: What unit is the outcome described in?
                    choices: [valueCodeableConcept]
                    index: 141
                  valueCodeableConcept:
                    base: {path: 'Extension.value[x]'}
                    type: CodeableConcept
                    short: What unit is the outcome described in?
                    choiceOf: value
                    index: 142
            participantEffectiveDescription:
              match: {url: null}
              schema:
                short: What time period do participants cover
                isModifier: false
                index: 162
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: What time period do participants cover
                    choices: [valueString]
                    index: 164
                  valueString:
                    base: {path: 'Extension.value[x]'}
                    type: string
                    short: What time period do participants cover
                    choiceOf: value
                    index: 165
            usageContext:
              match: {url: null}
              schema:
                short: What code/value pairs define members?
                isModifier: false
                array: true
                index: 131
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: What code/value pairs define members?
                    choices: [valueUsageContext]
                    index: 133
                  valueUsageContext:
                    base: {path: 'Extension.value[x]'}
                    type: UsageContext
                    short: What code/value pairs define members?
                    choiceOf: value
                    index: 134
            definition[x]:
              match: {url: null}
              schema:
                short: What code or expression defines members?
                isModifier: false
                _required: true
                index: 124
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: What code or expression defines members?
                    choices: [valueCodeableConcept, valueCanonical, valueExpression, valueDataRequirement]
                    index: 126
                  valueCodeableConcept:
                    base: {path: 'Extension.value[x]'}
                    type: CodeableConcept
                    short: What code or expression defines members?
                    choiceOf: value
                    index: 127
                  valueCanonical:
                    base: {path: 'Extension.value[x]'}
                    type: canonical
                    short: What code or expression defines members?
                    choiceOf: value
                    index: 128
                  valueExpression:
                    base: {path: 'Extension.value[x]'}
                    type: Expression
                    short: What code or expression defines members?
                    choiceOf: value
                    index: 129
                  valueDataRequirement:
                    base: {path: 'Extension.value[x]'}
                    type: DataRequirement
                    short: What code or expression defines members?
                    choiceOf: value
                    index: 130
            participantEffectiveTimeFromStart:
              match: {url: null}
              schema:
                short: Observation time from study start
                isModifier: false
                index: 173
                elements:
                  value:
                    base: {path: 'Extension.value[x]'}
                    short: Observation time from study start
                    choices: [valueDuration]
                    index: 175
                  valueDuration:
                    base: {path: 'Extension.value[x]'}
                    type: Duration
                    short: Observation time from study start
                    choiceOf: value
                    index: 176
    _required: true
    extensions:
      studyEffective[x]:
        url: null
        short: What time period does the study cover
        isModifier: false
        index: 147
        elements:
          value:
            base: {path: 'Extension.value[x]'}
            short: What time period does the study cover
            choices: [valueDateTime, valuePeriod, valueDuration, valueTiming]
            index: 149
          valueDateTime:
            base: {path: 'Extension.value[x]'}
            type: dateTime
            short: What time period does the study cover
            choiceOf: value
            index: 150
          valuePeriod:
            base: {path: 'Extension.value[x]'}
            type: Period
            short: What time period does the study cover
            choiceOf: value
            index: 151
          valueDuration:
            base: {path: 'Extension.value[x]'}
            type: Duration
            short: What time period does the study cover
            choiceOf: value
            index: 152
          valueTiming:
            base: {path: 'Extension.value[x]'}
            type: Timing
            short: What time period does the study cover
            choiceOf: value
            index: 153
      exclude:
        url: null
        short: Whether the characteristic includes or excludes members
        isModifier: false
        index: 135
        elements:
          value:
            base: {path: 'Extension.value[x]'}
            short: Whether the characteristic includes or excludes members
            choices: [valueBoolean]
            index: 137
          valueBoolean:
            base: {path: 'Extension.value[x]'}
            type: boolean
            short: Whether the characteristic includes or excludes members
            choiceOf: value
            index: 138
      participantEffective[x]:
        url: null
        short: What time period do participants cover
        isModifier: false
        index: 166
        elements:
          value:
            base: {path: 'Extension.value[x]'}
            short: What time period do participants cover
            choices: [valueDateTime, valuePeriod, valueDuration, valueTiming]
            index: 168
          valueDateTime:
            base: {path: 'Extension.value[x]'}
            type: dateTime
            short: What time period do participants cover
            choiceOf: value
            index: 169
          valuePeriod:
            base: {path: 'Extension.value[x]'}
            type: Period
            short: What time period do participants cover
            choiceOf: value
            index: 170
          valueDuration:
            base: {path: 'Extension.value[x]'}
            type: Duration
            short: What time period do participants cover
            choiceOf: value
            index: 171
          valueTiming:
            base: {path: 'Extension.value[x]'}
            type: Timing
            short: What time period do participants cover
            choiceOf: value
            index: 172
      studyEffectiveGroupMeasure:
        url: null
        short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
        isModifier: false
        index: 158
        elements:
          value:
            base: {path: 'Extension.value[x]'}
            short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
            choices: [valueCode]
            index: 160
          valueCode:
            base: {path: 'Extension.value[x]'}
            type: code
            short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
            choiceOf: value
            index: 161
      participantEffectiveGroupMeasure:
        url: null
        short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
        isModifier: false
        index: 177
        elements:
          value:
            base: {path: 'Extension.value[x]'}
            short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
            choices: [valueCode]
            index: 179
          valueCode:
            base: {path: 'Extension.value[x]'}
            type: code
            short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
            choiceOf: value
            index: 180
      studyEffectiveDescription:
        url: null
        short: What time period does the study cover
        isModifier: false
        index: 143
        elements:
          value:
            base: {path: 'Extension.value[x]'}
            short: What time period does the study cover
            choices: [valueString]
            index: 145
          valueString:
            base: {path: 'Extension.value[x]'}
            type: string
            short: What time period does the study cover
            choiceOf: value
            index: 146
      studyEffectiveTimeFromStart:
        url: null
        short: Observation time from study start
        isModifier: false
        index: 154
        elements:
          value:
            base: {path: 'Extension.value[x]'}
            short: Observation time from study start
            choices: [valueDuration]
            index: 156
          valueDuration:
            base: {path: 'Extension.value[x]'}
            type: Duration
            short: Observation time from study start
            choiceOf: value
            index: 157
      unitOfMeasure:
        url: null
        short: What unit is the outcome described in?
        isModifier: false
        index: 139
        elements:
          value:
            base: {path: 'Extension.value[x]'}
            short: What unit is the outcome described in?
            choices: [valueCodeableConcept]
            index: 141
          valueCodeableConcept:
            base: {path: 'Extension.value[x]'}
            type: CodeableConcept
            short: What unit is the outcome described in?
            choiceOf: value
            index: 142
      participantEffectiveDescription:
        url: null
        short: What time period do participants cover
        isModifier: false
        index: 162
        elements:
          value:
            base: {path: 'Extension.value[x]'}
            short: What time period do participants cover
            choices: [valueString]
            index: 164
          valueString:
            base: {path: 'Extension.value[x]'}
            type: string
            short: What time period do participants cover
            choiceOf: value
            index: 165
      usageContext:
        url: null
        short: What code/value pairs define members?
        isModifier: false
        array: true
        index: 131
        elements:
          value:
            base: {path: 'Extension.value[x]'}
            short: What code/value pairs define members?
            choices: [valueUsageContext]
            index: 133
          valueUsageContext:
            base: {path: 'Extension.value[x]'}
            type: UsageContext
            short: What code/value pairs define members?
            choiceOf: value
            index: 134
      definition[x]:
        url: null
        short: What code or expression defines members?
        isModifier: false
        _required: true
        index: 124
        elements:
          value:
            base: {path: 'Extension.value[x]'}
            short: What code or expression defines members?
            choices: [valueCodeableConcept, valueCanonical, valueExpression, valueDataRequirement]
            index: 126
          valueCodeableConcept:
            base: {path: 'Extension.value[x]'}
            type: CodeableConcept
            short: What code or expression defines members?
            choiceOf: value
            index: 127
          valueCanonical:
            base: {path: 'Extension.value[x]'}
            type: canonical
            short: What code or expression defines members?
            choiceOf: value
            index: 128
          valueExpression:
            base: {path: 'Extension.value[x]'}
            type: Expression
            short: What code or expression defines members?
            choiceOf: value
            index: 129
          valueDataRequirement:
            base: {path: 'Extension.value[x]'}
            type: DataRequirement
            short: What code or expression defines members?
            choiceOf: value
            index: 130
      participantEffectiveTimeFromStart:
        url: null
        short: Observation time from study start
        isModifier: false
        index: 173
        elements:
          value:
            base: {path: 'Extension.value[x]'}
            short: Observation time from study start
            choices: [valueDuration]
            index: 175
          valueDuration:
            base: {path: 'Extension.value[x]'}
            type: Duration
            short: Observation time from study start
            choiceOf: value
            index: 176
    url: null
    required: [extension]
  usage:
    url: null
    short: Describes the clinical usage of the ResearchElementDefinition
    isModifier: false
    index: 70
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: Describes the clinical usage of the ResearchElementDefinition
        choices: [valueString]
        index: 72
      valueString:
        base: {path: 'Extension.value[x]'}
        type: string
        short: Describes the clinical usage of the ResearchElementDefinition
        choiceOf: value
        index: 73
  status:
    url: null
    isModifier: true
    short: draft | active | retired | unknown
    _required: true
    isModifierReason: This is labeled as "Is Modifier" because applications should not use a retired {{title}} without due consideration
    index: 25
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: draft | active | retired | unknown
        choices: [valueCode]
        index: 27
      valueCode:
        base: {path: 'Extension.value[x]'}
        type: code
        short: draft | active | retired | unknown
        choiceOf: value
        index: 28
  subtitle:
    url: null
    short: Subordinate title of the ResearchElementDefinition
    isModifier: false
    index: 21
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: Subordinate title of the ResearchElementDefinition
        choices: [valueString]
        index: 23
      valueString:
        base: {path: 'Extension.value[x]'}
        type: string
        short: Subordinate title of the ResearchElementDefinition
        choiceOf: value
        index: 24
  comment:
    url: null
    short: Used for footnotes or explanatory notes
    isModifier: false
    array: true
    index: 54
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: Used for footnotes or explanatory notes
        choices: [valueString]
        index: 56
      valueString:
        base: {path: 'Extension.value[x]'}
        type: string
        short: Used for footnotes or explanatory notes
        choiceOf: value
        index: 57
  url:
    url: null
    short: Canonical identifier for this research element definition, represented as a URI (globally unique)
    isModifier: false
    index: 1
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: Canonical identifier for this research element definition, represented as a URI (globally unique)
        choices: [valueUri]
        index: 3
      valueUri:
        base: {path: 'Extension.value[x]'}
        type: uri
        short: Canonical identifier for this research element definition, represented as a URI (globally unique)
        choiceOf: value
        index: 4
  lastReviewDate:
    url: null
    short: When the research element definition was last reviewed
    isModifier: false
    index: 82
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: When the research element definition was last reviewed
        choices: [valueDate]
        index: 84
      valueDate:
        base: {path: 'Extension.value[x]'}
        type: date
        short: When the research element definition was last reviewed
        choiceOf: value
        index: 85
  editor:
    url: null
    short: Who edited the content
    isModifier: false
    array: true
    index: 94
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: Who edited the content
        choices: [valueContactDetail]
        index: 96
      valueContactDetail:
        base: {path: 'Extension.value[x]'}
        type: ContactDetail
        short: Who edited the content
        choiceOf: value
        index: 97
  reviewer:
    url: null
    short: Who reviewed the content
    isModifier: false
    array: true
    index: 98
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: Who reviewed the content
        choices: [valueContactDetail]
        index: 100
      valueContactDetail:
        base: {path: 'Extension.value[x]'}
        type: ContactDetail
        short: Who reviewed the content
        choiceOf: value
        index: 101
  shortTitle:
    url: null
    short: Title for use in informal contexts
    isModifier: false
    index: 17
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: Title for use in informal contexts
        choices: [valueString]
        index: 19
      valueString:
        base: {path: 'Extension.value[x]'}
        type: string
        short: Title for use in informal contexts
        choiceOf: value
        index: 20
  version:
    url: null
    short: Business version of the research element definition
    isModifier: false
    index: 5
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: Business version of the research element definition
        choices: [valueString]
        index: 7
      valueString:
        base: {path: 'Extension.value[x]'}
        type: string
        short: Business version of the research element definition
        choiceOf: value
        index: 8
  relatedArtifact:
    url: null
    short: Additional documentation, citations, etc.
    isModifier: false
    array: true
    index: 106
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: Additional documentation, citations, etc.
        choices: [valueRelatedArtifact]
        index: 108
      valueRelatedArtifact:
        base: {path: 'Extension.value[x]'}
        type: RelatedArtifact
        short: Additional documentation, citations, etc.
        choiceOf: value
        index: 109
  contact:
    url: null
    short: Contact details for the publisher
    isModifier: false
    array: true
    index: 46
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: Contact details for the publisher
        choices: [valueContactDetail]
        index: 48
      valueContactDetail:
        base: {path: 'Extension.value[x]'}
        type: ContactDetail
        short: Contact details for the publisher
        choiceOf: value
        index: 49
  effectivePeriod:
    url: null
    short: When the research element definition is expected to be used
    isModifier: false
    index: 86
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: When the research element definition is expected to be used
        choices: [valuePeriod]
        index: 88
      valuePeriod:
        base: {path: 'Extension.value[x]'}
        type: Period
        short: When the research element definition is expected to be used
        choiceOf: value
        index: 89
class: extension
kind: complex-type
url: http://hl7.org/fhir/4.0/StructureDefinition/extension-ResearchElementDefinition
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 0.0.1-snapshot-1
required: [url]