This is the CodeSystem that contains all the codes in CodeSystem: Types of rating provided by the PSS system (https://www.ehealth.fgov.be/standards/fhir/pss/CodeSystem/PSSRatingTypes) and CodeSystem: Types of rating provided by the PSS system (https://www.ehealth.fgov.be/standards/fhir/pss/CodeSystem/PSSRatingTypes). E.g. what you have to deal with if you get resources containing codes in either of them