{description: Statement about the degree of clinical certainty that a specific substance was the cause    of the manifestation in a reaction event., package_name: hl7.fhir.uv.xver-r4b.r4, name: AllergyIntoleranceCertainty, type: null, package_version: 0.0.1-snapshot-2, class: unknown, kind: null, url: 'http://hl7.org/fhir/reaction-event-certainty', version: 4.3.0}