description: A reference to the authoritative, human readable, source of truth for the code system information.  This extension has been deprecated due to being poorly defined.  External code system information can be found in THO or the relevant HTA confluence pages.
package_name: hl7.fhir.uv.extensions.r4b
derivation: constraint
name: CSAuthoritativeSource
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: uri, value: 'http://hl7.org/fhir/StructureDefinition/codesystem-authoritativeSource'}
    type: uri
    index: 1
  value:
    choices: [valueUri]
    index: 3
  valueUri: {type: uri, choiceOf: value, index: 4}
package_version: 5.3.0-ballot-tc
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/codesystem-authoritativeSource
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 5.3.0-ballot-tc
required: [value, valueUri]