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MLN9018659 - How To Use the Medicaid National Correct Coding Initiative (NCCI) Tools

This revised product comprises Subregulatory Guidance for How To Use The Medicaid National Correct Coding Initiative Tools and its content is based on publicly available information at,,, and
CMS policy or operation subject matter experts also reviewed/cleared this product. This product educates providers about how to use the Medicaid NCCI edits. Revisions to this product include the following content updates: Examples of differences between the Medicaid and Medicare NCCI programs, Medicaid NCCI FAQs Library, Filtering data instructions. There are so substantive changes to this product. The previous version of this product is available to the public and currently posted on the CMS website at:

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Issued by: Centers for Medicare & Medicaid Services (CMS)

Issue Date: December 22, 2023

DISCLAIMER: The contents of this database lack the force and effect of law, except as authorized by law (including Medicare Advantage Rate Announcements and Advance Notices) or as specifically incorporated into a contract. The Department may not cite, use, or rely on any guidance that is not posted on the guidance repository, except to establish historical facts.