NCCI for Physicians

AAPC's NCCI ASCII data files provide National Correct Coding Initiative (NCCI) edits between CPT®/HCPCS Level II codes. The NCCI edit rules and modifier indicators are formatted as pipe-delimited text, fixed width text, and as a spreadsheet with separate columns. The easy-to-interpret files are perfect for providers, outpatient facilities, claim scrubbers, auditors, and payers.


  • The up-to-date data set will help ensure compliance in your organization.
  • The edits contains current CPT® and HCPCS Level II codes.
  • Files include the Centers for Medicare & Medicaid Services’ (CMS) official active and deleted data sets.
  • The separate files make mapping easier to load.
  • The NCCI edit rules will help to prevent CMS (and some private payers) claim rejections.


  • There are three formats for each file: TXT (fixed format), TXT (pipe-delimited), and XLS (separate column spreadsheet).
  • It includes NCCI edit rules.
  • The data set contains edit additions and deletions and their dates.
  • It has complete NCCI modifier indicators.
  • Edits are updated quarterly, based on your subscription.


This data provides the latest official CMS data sets in three formats and several easy-to-interpret files. This product helps to prevent claim rejections and to assure compliance with CMS (and some private payer) rules.

CPT® copyright 2018 American Medical Association. All Rights Reserved.

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