http://hl7.org/fhir/StructureDefinition/uncertainPeriod|5.2.0
Used to express an uncertain date(+time) value by specifying an allowed or observed upper and lower bound.
description: Used to express an uncertain date(+time) value by specifying an allowed or observed upper and lower bound. derivation: constraint name: UncertainPeriod type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/uncertainPeriod'} index: 1 value: choices: [] index: 3 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/uncertainPeriod base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.2.0 required: [value]