description: This extension declares a parameter that is passed along with an $expand or $validate-code invocation, and where the value comes from. See [Parameterised ValueSets](parameterized-valuesets.html) for further details.
package_name: hl7.fhir.uv.tools.r4
derivation: constraint
name: BindingParameterDeclaration
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: The name must match the name declared in the value set
                choices: [valueCode]
                index: 4
              valueCode: {type: code, short: The name must match the name declared in the value set, choiceOf: value, index: 5}
            required: [valueCode, value]
        expression:
          match: {}
          schema:
            type: Extension
            short: A string literal, or an expression that populates the correct value for the parameter
            index: 6
            extensions: {}
            elements:
              extension: {index: 7}
              url:
                type: uri
                pattern: {type: Uri, value: expression}
                index: 8
              value:
                choices: [valueExpression, valueString]
                index: 10
              valueExpression: {type: Expression, choiceOf: value, index: 11}
              valueString: {type: string, choiceOf: value, index: 12}
            required: [valueString, valueExpression, value]
  url:
    pattern: {type: Uri, value: 'http://hl7.org/fhir/tools/StructureDefinition/binding-parameter'}
    index: 13
  value:
    choices: []
    index: 15
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: The name must match the name declared in the value set
        choices: [valueCode]
        index: 4
      valueCode: {type: code, short: The name must match the name declared in the value set, choiceOf: value, index: 5}
    required: [valueCode, value]
  expression:
    url: null
    type: Extension
    short: A string literal, or an expression that populates the correct value for the parameter
    index: 6
    extensions: {}
    elements:
      extension: {index: 7}
      url:
        type: uri
        pattern: {type: Uri, value: expression}
        index: 8
      value:
        choices: [valueExpression, valueString]
        index: 10
      valueExpression: {type: Expression, choiceOf: value, index: 11}
      valueString: {type: string, choiceOf: value, index: 12}
    required: [valueString, valueExpression, value]
class: extension
kind: complex-type
url: http://hl7.org/fhir/tools/StructureDefinition/binding-parameter
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 0.5.0
required: [extension]