This is the ValueSet that contains all the codes in Bangladesh Immunization Reaction Value Set (https://fhir.dghs.gov.bd/core/ValueSet/bd-immunization-reaction-valueset) and Bangladesh Immunization Reaction Value Set (https://fhir.dghs.gov.bd/core/ValueSet/bd-immunization-reaction-valueset). E.g. what you have to deal with if you get resources containing codes in either of them