reaction-event-certainty — CodeSystems — FHIR Core package — FHIR IG

AllergyIntoleranceCertainty

draftFHIR Core package4.3.0complete4 concepts

Statement about the degree of clinical certainty that a specific substance was the cause of the manifestation in a reaction event.

Metadata

Code	Display	Definition
`unlikely`	Unlikely	There is a low level of clinical certainty that the reaction was caused by the identified substance.
`likely`	Likely	There is a high level of clinical certainty that the reaction was caused by the identified substance.
`confirmed`	Confirmed	There is a very high level of clinical certainty that the reaction was due to the identified substance, which may include clinical evidence by testing or rechallenge.
`unknown`	Unknown	The clinical certainty that the reaction was caused by the identified substance is unknown. It is an explicit assertion that certainty is not known.