description: An expression that determines an initial value for the element on which it appears. The expression may be simply the name of a expression in a referenced library, or it may be a complete inline expression.
package_name: hl7.fhir.uv.extensions.r4b
derivation: constraint
name: InitialValue
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: uri, value: 'http://hl7.org/fhir/StructureDefinition/cqf-initialValue'}
    type: uri
    index: 1
  value:
    choices: [valueExpression]
    index: 3
  valueExpression: {type: Expression, choiceOf: value, index: 4}
package_version: 5.3.0-ballot-tc1
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/cqf-initialValue
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 5.3.0-ballot-tc1
required: [value, valueExpression]