description: Consumers of the value set and the implementations, projects or standards that the author has utilized the value set in.
package_name: hl7.fhir.core
derivation: constraint
name: Who has used and how?
type: Extension
elements:
  extension:
    isModifier: false
    short: A consumer of or client for the value set
    type: Extension
    index: 0
    slicing:
      slices:
        user:
          match: {}
          schema:
            isModifier: false
            short: A consumer of or client for the value set
            type: Extension
            _required: true
            index: 0
            extensions:
              extension: {url: null, max: 0, index: 1}
            elements:
              extension:
                index: 1
                slicing:
                  slices:
                    extension:
                      match: {}
                      schema: {index: 1}
                      max: 0
              url:
                type: uri
                pattern: {type: Uri, value: user}
                index: 2
              value:
                choices: [valueString]
                index: 4
              valueString: {type: string, choiceOf: value, index: 5}
            required: [valueString, value]
        use:
          match: {}
          schema:
            isModifier: false
            short: Implementation/project/standard that uses value set
            type: Extension
            _required: true
            index: 6
            extensions:
              extension: {url: null, max: 0, index: 7}
            elements:
              extension:
                index: 7
                slicing:
                  slices:
                    extension:
                      match: {}
                      schema: {index: 7}
                      max: 0
              url:
                type: uri
                pattern: {type: Uri, value: use}
                index: 8
              value:
                choices: [valueString]
                index: 10
              valueString: {type: string, choiceOf: value, index: 11}
            required: [valueString, value]
  url:
    type: uri
    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/codesystem-usage'}
    index: 12
  value:
    choices: []
    index: 14
package_version: 1.8.0
extensions:
  user:
    isModifier: false
    short: A consumer of or client for the value set
    index: 0
    type: Extension
    elements:
      extension:
        index: 1
        slicing:
          slices:
            extension:
              match: {}
              schema: {index: 1}
              max: 0
      url:
        type: uri
        pattern: {type: Uri, value: user}
        index: 2
      value:
        choices: [valueString]
        index: 4
      valueString: {type: string, choiceOf: value, index: 5}
    _required: true
    extensions:
      extension: {url: null, max: 0, index: 1}
    url: null
    required: [valueString, value]
  use:
    isModifier: false
    short: Implementation/project/standard that uses value set
    index: 6
    type: Extension
    elements:
      extension:
        index: 7
        slicing:
          slices:
            extension:
              match: {}
              schema: {index: 7}
              max: 0
      url:
        type: uri
        pattern: {type: Uri, value: use}
        index: 8
      value:
        choices: [valueString]
        index: 10
      valueString: {type: string, choiceOf: value, index: 11}
    _required: true
    extensions:
      extension: {url: null, max: 0, index: 7}
    url: null
    required: [valueString, value]
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/codesystem-usage
base: http://hl7.org/fhir/StructureDefinition/Extension
version: null
required: [extension]