This is the ValueSet that contains all the codes in eHDSI Laboratory Study Types with exceptions (http://fhir.ehdsi.eu/laboratory/ValueSet/eHDSILabStudyTypeWithExceptions) and eHDSI Laboratory Study Types with exceptions (http://fhir.ehdsi.eu/laboratory/ValueSet/eHDSILabStudyTypeWithExceptions). E.g. what you have to deal with if you get resources containing codes in either of them