Standards & EDI
Service Type Code
Draft — pending verification
This reference entry has not yet been verified against its authoritative source (Original definitions; regulatory facts to be verified against CMS-0057-F (89 FR 8758) and X12/HL7 documentation). Do not rely on it for production configuration until this notice is removed.
In more depth
Because the list is shared across transactions, the same code vocabulary describes what a benefit covers and what a prior auth requests — a useful alignment for automation. The full external code list is maintained by X12 and is much larger than the subset most payers actively use in UM routing.