Per https://jira.hl7.org/browse/FHIR-30345 PC, Vocab, CPWG all decided to align C-CDA and USCore (via the PC allergen value sets) regarding reactants. Both the grouping value sets, one with (2.16.840.1.113762.1.4.1186.8), one without (2.16.840.1.113762.1.4.1186.7) are to remove 2.16.840.1.113762.1.4.1186.2 Common drug classes for allergy and intolerance documentation and replace it with 2.16.840.1.113762.1.4.1114.14 Medication drug class for allergen intolerance SCT