This is the ValueSet that contains all the codes in Procedures - SNOMED CT + Absent/Unknown - IPS (http://hl7.eu/fhir/hdr/ValueSet/procedures-snomed-absent-unknown-eu-hdr) and Procedures - SNOMED CT + Absent/Unknown - IPS (http://hl7.eu/fhir/hdr/ValueSet/procedures-snomed-absent-unknown-eu-hdr). E.g. what you have to deal with if you get resources containing codes in either of them