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2. ICD-10 Codes
3. Chapter - I00-I99
4. Section - I30-I5A
5. Category - I33
6. I33.0

I33.0 - Acute and subacute infective endocarditis

• Applicable to Acute and subacute infective endocarditis
• The 2025 edition of ICD10-CM I33.0 became effective on October 1, 2024.
• This is the American ICD10-CM version of I33.0 - other international versions of ICD10 I33.0 may differ.
• I33.0 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

Code Additional Code:

• code (B95-B97) to identify infectious agent

• Bacterial endocarditis (acute) (subacute)
• Infective endocarditis (acute) (subacute) NOS
• Endocarditis lenta (acute) (subacute)
• Malignant endocarditis (acute) (subacute)
• Purulent endocarditis (acute) (subacute)
• Septic endocarditis (acute) (subacute)
• Ulcerative endocarditis (acute) (subacute)
• Vegetative endocarditis (acute) (subacute)

The following codes above I33.0 contain annotation back-references that may be applicable to I33.0:

• Chapter: I00-I99 - Diseases of the circulatory system
• Section: I30-I5A - Other forms of heart disease
• Category: I33 - Acute and subacute endocarditis

Browse other similar CM codes:

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.