This is the ValueSet that contains all the codes in Set de Valores de los Tipos de Especimen (https://interoperabilidad.minsal.cl/fhir/ig/r2bo/ValueSet/r2bo-tipo-especimen-vs) and Set de Valores de los Tipos de Especimen (https://interoperabilidad.minsal.cl/fhir/ig/r2bo/ValueSet/r2bo-tipo-especimen-vs). E.g. what you have to deal with if you get resources containing codes in either of them