This is the ValueSet that contains all the codes in BR Core Medication Not Given (https://terminologia.saude.gov.br/fhir/ValueSet/BRCoreMedication-not-given) and BR Core Medication Not Given (https://terminologia.saude.gov.br/fhir/ValueSet/BRCoreMedication-not-given). E.g. what you have to deal with if you get resources containing codes in either of them