Data Files

NCCI data sets for physicians
Are you looking for custom medical coding data files for your organization?

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.

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