ICD-10-CM code · FY2027
I33.0 Acute and subacute infective endocarditis
BillableValid for claims as a specific diagnosis code
About I33.0
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Coding notes for I33.0
Applicable to Other names for conditions reported with this code.
- 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)
Use additional code Add a second code for the detail named here.
Also applies, from I33 Acute and subacute endocarditis
Excludes1 Not coded here: never report these together with this code (use the code given instead).
Chapter 9 notes (apply to every code in it)
Excludes2 Not part of this condition, but a patient can have both: report both codes when both apply.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- transient cerebral ischemic attacks and related syndromes (G45.-)
Related codes in I33
Latest research on endocarditis
- FDG-PET scanning demonstrates prognostic significance in prosthetic valve infective endocarditis
- Large spike in drug use-associated infective endocarditis linked with opioid epidemic
- Cefazolin non-inferior to penicillins for methicillin-susceptible Staphylococcus aureus bacteremia
- Transcatheter aortic valve implantation non-inferior to surgical replacement in low-to-intermediate risk patients
- Ceftobiprole non-inferior to daptomycin in treating Staphylococcus aureus bacteremia
Landmark trials from 2MM Classics
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See 2MM+ plansICD-10-CM FY2027 code set, as published by the CDC National Center for Health Statistics (NCHS) and CMS, effective October 1, 2026 to September 30, 2027. Codes, titles and notes are shown as published. Check payer rules and the official guidelines before billing. This page is not medical advice.
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