Other forms of heart disease (I30-I5A) ICD-10-CM
The I30–I5A section covers other forms of heart disease with 185 ICD-10-CM diagnosis codes, of which 146 are billable in fiscal year 2027. The section is organized into the 24 code ranges listed below.
Code Ranges in This Section 24 ranges · 185 codes
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the I30–I5A Code Range
These heart conditions involve the pericardium, valves, heart muscle, electrical activity, cardiac arrest, and heart failure. Heart failure means the heart cannot pump enough blood for the body’s needs.
I30 covers acute pericarditis, while I31 covers other pericardial diseases. I32 identifies pericarditis in diseases classified elsewhere. I33 covers acute and subacute endocarditis, inflammation of the heart’s inner lining. I34 through I37 separate nonrheumatic valve disorders by valve, then by stenosis, insufficiency, or both. I38 covers endocarditis without a specified valve; I39 covers endocarditis and valve disorders in diseases classified elsewhere.
I40 covers acute myocarditis, inflammation of heart muscle. I41 covers myocarditis in diseases classified elsewhere. I42 sorts cardiomyopathy, a heart muscle disease, by form or cause; I43 covers it in diseases classified elsewhere.
I44 and I45 separate conduction blocks and other conduction disorders. I46 separates cardiac arrest by underlying cause. I47 through I49 distinguish abnormal rhythms by type. I50 separates systolic, diastolic, and combined heart failure. I51 covers complications and ill-defined heart disease; I52 covers other heart disorders in diseases classified elsewhere. I5A identifies non-ischemic, non-traumatic heart muscle injury.
FY 2027 changes: The FY 2027 ICD-10-CM update, effective October 1, 2026, added I42.00, I42.01, I42.09, I42.81, I42.89, I47.22, I49.81, I49.82 and I49.89 and deleted I42.0, I42.8 and I49.8.
Questions About This Page
How many codes are in the I30-I5A range?
The I30-I5A range contains 185 ICD-10-CM diagnosis codes in FY 2027. 146 of them are billable, and the rest are category headers that organize the section.
What conditions does I30-I5A cover?
The range covers other forms of heart disease. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
