Other rheumatic heart diseases (I09) ICD-10-CM
The I09 code range covers other rheumatic heart diseases with 8 ICD-10-CM diagnosis codes. 6 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Codes in the I09 Range 8 codes · 6 billable
- I09 Other rheumatic heart diseasesNon-billable
- I09.0 Rheumatic myocarditis
- I09.1 Rheumatic diseases of endocardium, valve unspecified
- I09.2 Chronic rheumatic pericarditis
- I09.8 Other specified rheumatic heart diseasesNon-billable
- I09.81 Rheumatic heart failure
- I09.89 Other specified rheumatic heart diseases
- I09.9 Rheumatic heart disease, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the I09 range.
Acute Rheumatic Endocarditis
Inflammation of the endocardium in acute rheumatic heart disease.
Rheumatic Heart Disease
Cardiac manifestation of systemic rheumatological conditions, such as RHEUMATIC FEVER. Rheumatic heart disease can involve any part the heart, most often the HEART VALVES and the ENDOCARDIUM.
Rheumatic Heart Failure
Heart failure secondary to rheumatic fever.
About the I09 Code Range
These chronic rheumatic heart conditions involve the heart muscle, the inner lining or a valve, or the membrane around the heart. The category also includes rheumatic heart failure.
I09.0 names myocarditis, which affects the heart muscle. I09.1 names disease of the inner heart lining or an unspecified valve. I09.2 names pericarditis, which affects the membrane around the heart. Under I09.8, the codes separate rheumatic heart failure from other specified rheumatic heart diseases. I09.9 leaves the rheumatic heart disease unspecified.
Questions About This Page
How many billable codes are in the I09 range?
Of the 8 codes in this range, 6 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the I09 range classify?
The range classifies other rheumatic heart diseases. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
