ICD-10 Code A32.82 – Listerial Endocarditis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A32.82 – Listerial endocarditis
What it is
A32.82 identifies endocarditis caused by Listeria infection. Use it when the record documents Listeria as the organism affecting the heart valves or endocardium.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings include fever, heart murmur, and signs of infective endocarditis, with microbiologic evidence or clinician attribution to Listeria.
When to use this code
Use this code when the provider diagnoses listerial endocarditis or clearly documents Listeria as the cause of endocarditis. It is appropriate for confirmed cases and for final coded diagnoses supported by the chart. Check documentation if the organism is suspected but not confirmed.
Do not use for
Do not use A32.82 for nonspecific endocarditis without Listeria documentation. Do not assign it for other Listeria infections that do not involve the heart.
Coding tip
Code the organism only when the record clearly links Listeria to the endocarditis diagnosis.