GP Connect - AllergyIntolerance

GPs (often) record allergies using “Adverse reaction to/Allergy to X” codes, rather than recording the causative agent

e.g. 292954005 Adverse reaction to penicillins

I understand that it is possible to infer the causative agent from the above codes in the SNOMED hierarchy.

Is this your intention for populating the causative agent element?

Do you populate the reaction/manifestation element with the original code?

The SNOMED code does have a ‘causative agent’ relationship to (in this case) 373270004 | Penicillin -class of antibiotic- (substance)

So, not by using the hierarchy but by using the SNOMED CT relationship model you can go from a disorder code to a substance. The substance hierarchy could the be used to infer possible allergic ingredients.