Download the April 2026 NCCI quarterly edit files

Revenue integrity professionals should take note of the latest edition of the National Correct Coding Initiative (NCCI) quarterly edit files, which take effect on April 1. The updated ZIP files are available for download on the procedure-to-procedure (PTP) edits, medically unlikely edits (MUE), and add-on code edits web pages.

The 3,750-plus new PTP code pairs are partially offset by more than 4,800 deleted code bundles. Most of the new code pairs correspond with medicine codes (U codes) and Category III codes (T codes). Six code pairs have been revised.

The April 2026 update also introduces 121 new MUEs and seven revised MUE counts. The MUE file signifies the cap on daily units of service that providers are eligible to report. A notable revision in the update is that providers will soon be limited to reporting one unit of service for HCPCS code G0447 (face-to-face behavioral counseling for obesity, 15 minutes) per date of service, which is a reduction of the two units of service currently available.

Editor’s note: This article includes reporting from Part B News. Find more NAHRI coverage on NCCI edits here.