This is the ValueSet that contains all the codes in BR Procedimentos Nacionais (https://terminologia.saude.gov.br/fhir/ValueSet/BRProcedimentosNacionais) and BR Procedimentos Nacionais (https://terminologia.saude.gov.br/fhir/ValueSet/BRProcedimentosNacionais). E.g. what you have to deal with if you get resources containing codes in either of them