Union of http://hl7.org/fhir/us/core/ValueSet/us-core-allergy-substance and http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113762.1.4.1186.8

This is the ValueSet that contains all the codes in US Core Common substances for allergy and intolerance documentation including refutations (http://hl7.org/fhir/us/core/ValueSet/us-core-allergy-substance) and Common substances for allergy and intolerance documentation including refutations (http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113762.1.4.1186.8). E.g. what you have to deal with if you get resources containing codes in either of them

CodeSystem

Generated Narrative: ValueSet b71c97e4-7bf2-4bde-86a4-2f37b8663c5e-59

This value set includes codes based on the following rules: