This is the ValueSet that contains codes in both Reaction Manifestation Code (https://www.ehealth.fgov.be/standards/fhir/core-clinical/ValueSet/be-vs-reaction-manifestation-code) and Reaction Manifestation Code (https://www.ehealth.fgov.be/standards/fhir/core-clinical/ValueSet/be-vs-reaction-manifestation-code).