I09.1
BillableRheumatic diseases of endocardium, valve unspecified
I09.1 is the ICD-10-CM code for Rheumatic diseases of endocardium, valve unspecified. It is a billable, specific code valid for reimbursement.
I00-I99 Diseases of the circulatory system
Includes
- •Rheumatic endocarditis (chronic)
- •Rheumatic valvulitis (chronic)
Excludes1 — not coded here
- •endocarditis, valve unspecified (I38)
Frequently asked questions
- What is ICD-10 code I09.1?
- I09.1 is the ICD-10-CM code for "Rheumatic diseases of endocardium, valve unspecified". It falls under I00-I99 Diseases of the circulatory system.
- Is I09.1 a billable code?
- Yes — I09.1 is a billable, specific ICD-10-CM code valid for reimbursement.
- What is excluded from I09.1?
- Excludes1 (not coded here): endocarditis, valve unspecified (I38).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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