description: This extension declares a parameter that can be passed along with an $expand or $validate-code invocation to further narrow the value set. See [Parameterised ValueSets](parameterized-valuesets.html) for further details.
package_name: rs/hl7.fhir.uv.tools
derivation: constraint
name: ValueSetParameterDeclaration
type: Extension
elements:
  extension:
    type: Extension
    short: The name of the parameter
    index: 0
    slicing:
      slices:
        name:
          match: {}
          schema:
            type: Extension
            short: The name of the parameter
            _required: true
            index: 0
            extensions: {}
            elements:
              extension: {index: 1}
              url:
                type: uri
                pattern: {type: uri, value: name}
                index: 2
              value:
                short: A token (A-Z, a-z, _, -) with no whitespace. SHOULD start with p-
                choices: [valueCode]
                index: 4
              valueCode: {type: code, short: 'A token (A-Z, a-z, _, -) with no whitespace. SHOULD start with p-', choiceOf: value, index: 5}
            required: [value, valueCode]
        documentation:
          match: {}
          schema:
            type: Extension
            short: Explanation of the effect of the parameter, including valid values
            index: 6
            extensions: {}
            elements:
              extension: {index: 7}
              url:
                type: uri
                pattern: {type: uri, value: documentation}
                index: 8
              value:
                choices: [valueMarkdown]
                index: 10
              valueMarkdown: {type: markdown, choiceOf: value, index: 11}
            required: [value, valueMarkdown]
  url:
    pattern: {type: uri, value: 'http://hl7.org/fhir/tools/StructureDefinition/valueset-parameter'}
    type: uri
    index: 12
  value:
    choices: []
    index: 14
package_version: 0.5.0
extensions:
  name:
    url: null
    type: Extension
    short: The name of the parameter
    _required: true
    index: 0
    extensions: {}
    elements:
      extension: {index: 1}
      url:
        type: uri
        pattern: {type: uri, value: name}
        index: 2
      value:
        short: A token (A-Z, a-z, _, -) with no whitespace. SHOULD start with p-
        choices: [valueCode]
        index: 4
      valueCode: {type: code, short: 'A token (A-Z, a-z, _, -) with no whitespace. SHOULD start with p-', choiceOf: value, index: 5}
    required: [value, valueCode]
  documentation:
    url: null
    type: Extension
    short: Explanation of the effect of the parameter, including valid values
    index: 6
    extensions: {}
    elements:
      extension: {index: 7}
      url:
        type: uri
        pattern: {type: uri, value: documentation}
        index: 8
      value:
        choices: [valueMarkdown]
        index: 10
      valueMarkdown: {type: markdown, choiceOf: value, index: 11}
    required: [value, valueMarkdown]
class: extension
kind: complex-type
url: http://hl7.org/fhir/tools/StructureDefinition/valueset-parameter
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 0.5.0
required: [extension]