Heart Coding at a Glance (ICD-10-CM Cheat Sheet)

A two-page quick reference for coding heart conditions in ICD-10-CM. Find the heart failure code by type and acuity, check the 4-week MI rule, and pick the right I21 code at a glance.

WHAT'S INSIDE

• Page 1: the I50 heart failure grid (systolic, diastolic, combined by acuity, with the HFrEF and HFpEF inclusion terms), the other I50 codes, the hypertension link, the 4-week (28 days) MI timeline (I21, I22, aftercare, I25.2), and which I21 code to use, with a coronary artery picture tied to the STEMI site codes
• Page 2: type 2 MI, a second MI within 4 weeks, CAD with angina combination codes (I25.11- and I25.7-), atrial fibrillation and flutter types, cardiomyopathy (including the new FY2027 codes), pulmonary hypertension, and 5 worked examples
• Every rule is tagged with its Official Guidelines section or Tabular category, so you can find it fast in your book

FILE FORMAT

• One PDF, US Letter (8.5 x 11 inches), 2 pages. Print it or keep it open on your screen.

HOW IT WORKS

Your download link appears right after payment and is emailed to you.

GOOD TO KNOW

• Based on the FY2027 ICD-10-CM code set and Official Guidelines (in effect October 1, 2026 to September 30, 2027). Codes change every October, so check the current year.
• This sheet covers ICD-10-CM diagnosis coding only. It has no CPT procedure codes.
• The full hypertension, CKD, and diabetes grid is on a separate sheet in the shop (Hypertension and Diabetes at a Glance).
• Educational reference, not legal or billing advice. Payers and facilities can add their own rules.
• AAPC doesn't allow extra notes or printouts in exam code books, so this is a study aid and work reference, not an exam aid.
• Not affiliated with or endorsed by CMS, NCHS, AHA, AAPC, or AHIMA.
• Digital items generally can't be returned. If a file is missing, damaged, or different from this listing, email thedenialdesk@gmail.com and I'll help sort it out.
• Drafted with help from AI tools, then reviewed and fact-checked by a certified medical coding professional.

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This file is for your own use. Please don't resell, share, or post it.