Extensions for Using Data Elements from FHIR R4 in FHIR R4B
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Extensions for Using Data Elements from FHIR R4 in FHIR R4B - Downloaded Version null See the Directory of published versions

CodeSystem: AllergyIntoleranceCertainty

Official URL: http://terminology.hl7.org/CodeSystem/reaction-event-certainty Version: 4.0.1
Standards status: Trial-use Maturity Level: 0 Computable Name: AllergyIntoleranceCertainty

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

This Code system is referenced in the content logical definition of the following value sets:

  • This CodeSystem is not used here; it may be used elsewhere (e.g. specifications and/or implementations that use this content)

This case-sensitive code system http://terminology.hl7.org/CodeSystem/reaction-event-certainty defines the following codes:

CodeDisplayDefinition
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.