This is the ValueSet that contains all the codes in Basic Laterality (https://www.ehealth.fgov.be/standards/fhir/mycarenet/ValueSet/be-vs-basic-laterality) and Basic Laterality (https://www.ehealth.fgov.be/standards/fhir/mycarenet/ValueSet/be-vs-basic-laterality). E.g. what you have to deal with if you get resources containing codes in either of them