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