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I33.0

✓ Billable

Acute and subacute infective endocarditis

Diseases of the circulatory system (I00-I99)

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Also Known As

Bacterial endocarditis (acute) (subacute)Infective endocarditis (acute) (subacute) NOSEndocarditis lenta (acute) (subacute)Malignant endocarditis (acute) (subacute)Purulent endocarditis (acute) (subacute)Septic endocarditis (acute) (subacute)Ulcerative endocarditis (acute) (subacute)Vegetative endocarditis (acute) (subacute)

📋 Code Instructions

  • • code (B95-B97) to identify infectious agent

❌ Excludes1

inherited from I33

Rules from parent category I33: Acute and subacute endocarditis

  • • acute rheumatic endocarditis (I01.1)
  • • endocarditis NOS (I38)

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Code Information

CodeI33.0
BillableYes
ParentI33
CategoryDiseases of the circulatory system (I00-I99)
Excludes12 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)