Code Set Under HIPAA, this is any set of codes used to encode data elements, such as tables of terms, medical concepts, medical diagnostic codes, or medical procedure codes. This includes both the codes and their descriptions. Also see Part II, 45 CFR 162.103. Related Terms: Maintenance; Legislation Files Containing This Term: legislation/45CFR-162.1002.html legislation/45CFR-162.1011.html legislation/45CFR-162.103.html