I09: Other rheumatic heart diseases
Codes under I09 (Other rheumatic heart diseases). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| I09.0 | Rheumatic myocarditis | ✓ |
| I09.0 | Rheumatic myocarditis | ✓ |
| I09.1 | Rheumatic diseases of endocardium, valve unspecified | ✓ |
| I09.1 | Rheumatic diseases of endocardium, valve unspecified | ✓ |
| I09.2 | Chronic rheumatic pericarditis | ✓ |
| I09.2 | Chronic rheumatic pericarditis | ✓ |
| I09.8 | Other specified rheumatic heart diseases | — |
| I09.8 | Other specified rheumatic heart diseases | — |
| I09.9 | Rheumatic heart disease, unspecified | ✓ |
| I09.9 | Rheumatic heart disease, unspecified | ✓ |
| I09.81 | Rheumatic heart failure | ✓ |
| I09.81 | Rheumatic heart failure | ✓ |
| I09.89 | Other specified rheumatic heart diseases | ✓ |
| I09.89 | Other specified rheumatic heart diseases | ✓ |
Frequently asked questions
What is ICD-10-CM code I09?
I09 is an ICD-10-CM category covering Other rheumatic heart diseases. It contains 14 more specific diagnosis codes, 12 of which are billable.
Is I09 a billable code?
No — I09 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example I09.0 — Rheumatic myocarditis). 12 of the 14 codes under I09 are billable.
What codes fall under I09?
I09 includes I09.0, I09.0, I09.1, I09.1, I09.2, plus 9 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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