This is the ValueSet that contains all the codes in Case Significance Value Set (http://hl7.org/fhir/uv/termchangeset/ValueSet/case-significance-vs) and Case Significance Value Set (http://hl7.org/fhir/uv/termchangeset/ValueSet/case-significance-vs). E.g. what you have to deal with if you get resources containing codes in either of them