I33.9
BillableAcute and subacute endocarditis, unspecified
I33.9 is the ICD-10-CM code for Acute and subacute endocarditis, unspecified. It is a billable, specific code valid for reimbursement.
I00-I99 Diseases of the circulatory system
Includes
- •Acute endocarditis NOS
- •Acute myoendocarditis NOS
- •Acute periendocarditis NOS
- •Subacute endocarditis NOS
- •Subacute myoendocarditis NOS
- •Subacute periendocarditis NOS
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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