description: Used to express an uncertain date(+time) value by specifying an allowed or observed upper and lower bound.
package_name: hl7.fhir.uv.extensions.r4
derivation: constraint
name: UncertainPeriod
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: uri, value: 'http://hl7.org/fhir/StructureDefinition/uncertainPeriod'}
    type: uri
    index: 1
  value:
    choices: [valuePeriod]
    index: 3
  valuePeriod: {type: Period, choiceOf: value, index: 4}
package_version: 5.3.0-ballot-tc1
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/uncertainPeriod
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 5.3.0-ballot-tc1
required: [value, valuePeriod]