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CMS ICD-10 Resources

Guidance for CMS ICD-10 Resources for providers.


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

Issue Date: August 07, 2020

Resources for Providers 

Clinical Concepts Series

Guides include common ICD-10 codes, clinical documentation tips, clinical scenarios, and links by specialty:

ICD-10 Basics (Videos)

Resources for Payers and Vendors

These resources will introduce you to ICD-10, explain why it is necessary, and give you the information you will need to use ICD-10:

Coding Resources

The Centers for Medicare & Medicaid Services does not provide specific coding guidance.  However, listed below are several resources that may be able to assist you:

Updated ICD-10-CM and ICD-10-PCS codes sets may be obtained free of charge using the Navigation links on this page.

ICD-10-CM Guidelines, may be found at the following website:


For questions about Claims Processing and Payment or Local Coverage Determinations, please contact your Medicare Administrative Contractor (MAC) for guidance. You can find the list of MACs at this link: /Medicare/Coding/ICD10/ICD-10-Provider-Contact-Table.pdf  (PDF)

For questions about National Coverage Determinations: /Medicare/Coverage/InfoExchange/contactus

For requests to update the ICD-10-PCS procedure codes, please note CMS only accepts ICD-10-PCS procedure code requests submitted via the Medicare Electronic Application Request Information System™ (MEARIS™). The ICD-10-PCS code request application can be accessed at: For guidance regarding the request submission process, please refer to the “Resources” section at:

For requests to update the ICD-10-CM diagnosis codes, please note that the Centers for Disease Control and Prevention (CDC) is responsible for the development and maintenance of ICD-10-CM. Please send your ICD-10-CM questions or comments to:

Please contact your Regional Office if you have additional questions: /Medicare/Coding/ICD10/CMS-Regional-Offices

HHS is committed to making its websites and documents accessible to the widest possible audience, including individuals with disabilities. We are in the process of retroactively making some documents accessible. If you need assistance accessing an accessible version of this document, please reach out to the

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.