UM Operations
Adverse Determination
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
The formal term matters because rights attach to it: who must be notified, in what form, on what timeline, and what review paths open (internal appeal, external review, fair hearing in Medicaid). Partial certifications are adverse determinations for the non-certified portion — a detail sloppy workflows miss.