This is the ValueSet that contains all the codes in Example CMS Hierarchical Condition Category Value Set (http://hl7.org/fhir/us/davinci-ra/ValueSet/example-cmshcc) and Sample CMS Hierarchical Condition Category (http://hl7.org/fhir/us/davinci-ra/ValueSet/sample-cmshcc). E.g. what you have to deal with if you get resources containing codes in either of them