Union of http://hl7.org/fhir/ValueSet/substance-code and http://terminology.ehdsi.eu/ValueSet/eHDSIAllergenNoDrug

This is the ValueSet that contains all the codes in Substance Code (http://hl7.org/fhir/ValueSet/substance-code) and eHDSI Allergen No Drug (http://terminology.ehdsi.eu/ValueSet/eHDSIAllergenNoDrug). E.g. what you have to deal with if you get resources containing codes in either of them

CodeSystem

Generated Narrative: ValueSet 549993d0-891c-461c-9633-0b2f2b8b9aa0-11

This value set includes codes based on the following rules: