AllergyIntoleranceCertainty

Statement about the degree of clinical certainty that a Specific Substance was the cause of the Manifestation in an reaction event.

This value set has an inline code system http://hl7.org/fhir/reaction-event-certainty, which defines the following codes:

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.