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