ICD-10-CM · Billable Code
I09.9 — Rheumatic heart disease, unspecified
Chapter I00-I99: Diseases of the circulatory system
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Common questions about I09.9 (Rheumatic heart disease, unspecified)
What does ICD-10 code I09.9 mean?
I09.9 is the ICD-10-CM 2025 code for Rheumatic heart disease, unspecified. ICD-10-CM is the medical coding system used by clinicians, hospitals and insurers worldwide to classify diseases and conditions in a standard way.
Is I09.9 a billable diagnosis code?
Yes, I09.9 is a billable / specific ICD-10-CM code, meaning it can be used by clinicians and hospitals as a primary or secondary diagnosis on claims and electronic health records.
Which ICD-10 chapter does I09.9 belong to?
I09.9 belongs to the chapter "Diseases of the circulatory system" (codes I00-I99). ICD-10-CM organises codes into 22 chapters by body system or condition type, which helps clinicians navigate related diagnoses.
Where can I get plain-language information about Rheumatic heart disease, unspecified?
For a plain-language explanation of Rheumatic heart disease, unspecified, ask GoDavaii's Health AI - it explains medical conditions in 90+ languages, free, with no signup. Tap "Ask GoDavaii AI about Rheumatic heart disease, unspecified" above to get a personalised answer.
Source: ICD-10-CM 2025 (Centers for Medicare & Medicaid Services, public domain). Codes valid from October 1, 2024. CMS source ↗