ICD-10-CM 2026: The Complete Official Codebook
Diagnosis coding reference — buy the edition year that matches your exam or work year.
Available at Amazon(paid link)
Study materials
Code books for the exam year
Match ICD-10, CPT, and HCPCS editions to your exam window. Confirm allowed materials with the issuer.
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What each set is for
Three families — not interchangeable.
ICD-10-CM — diagnoses. Common for both billers (literacy) and coders (assignment).
CPT — procedures/services (AMA). Critical for many coding exams; billers still need familiarity for claim review.
HCPCS Level II — supplies, drugs, and services outside CPT. Confirm whether your exam window expects a current book.
Always check the issuer’s allowed-materials list. Some exams are open-book with strict edition rules; others are not.
Optional listings
Books we list for convenience (affiliate)
Listings rotate by availability. Prefer current-year titles that match your exam. For CPT Professional and HCPCS specifically, verify the latest edition on Amazon or the publisher after checking your issuer page.
Disclosure: As an Amazon Associate we earn from qualifying purchases. Links to Amazon may earn us a commission at no extra cost to you. Product availability and prices change — confirm details on Amazon. This site does not sell certifications or guarantee exam outcomes. We are not sponsored or endorsed by Amazon.
Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates. We do not use Amazon logos or product screenshots on this site.
CPT 2026 Professional Edition
Procedure coding reference for many CPC and outpatient pathways — confirm allowed edition on the issuer page.
Available at Amazon(paid link)
Medical Terminology Book: 1000+ Terms In Anatomy And Physiology Workbook For Nurses, High School & Medical Students With Practical Exercises, Easy Learning, Bonus Coding & Billing Insights
Terminology drills when documentation language — not the codebook — is the bottleneck.
Available at Amazon(paid link)
Prefer issuer study guides when they conflict with third-party materials.