Sharing this is a list of sources I use when doing research. Authoritative Resources for ICD-10 1. International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) a. ICD-10-CM Official Guidelines 2. Centers for Medicare and Medicaid Services (CMS) Manuals Transmittals 3. Risk Adjustment Documentation & Coding, Second Edition, Sheri Poe Bernard 4. Acdis Outpatient Pocket Guide 5. AHA Coding Clinic for ICD-10-CM 6. Medical Abbreviations.com 7. UCSD Health Library 8. Psychiatry online DSM Library Disclaimer: This guidance is to be used for an easy reference; the ICD-9-CM and ICD-10-CM code books and the Official Guidelines for Coding and Reporting are the authoritative references for accurate and complete coding. This blog may contain references or links to statutes, regulations, or other policy materials. It is not intended to take the place of either the written law or regulations. The information pre