ICD-10 Code B57.0 – Acute Chagas’ disease with heart involvement (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B57.0 – Acute Chagas’ disease with heart involvement
What it is
B57.0 identifies acute Chagas’ disease when the infection affects the heart. It describes early Trypanosoma cruzi infection with cardiac involvement documented by the clinician.
Clinical signs
Clinical features vary; refer to documentation. You may see acute infection with myocarditis, arrhythmia, heart failure, or other cardiac findings linked to Chagas disease.
When to use this code
Use this code when the provider documents acute Chagas disease and specifies heart involvement. It applies to confirmed or strongly documented acute infection with cardiac manifestations. Check the record for the acute phase and the heart involvement term before assigning B57.0.
Do not use for
Do not use this code for Chagas disease without heart involvement, or for chronic Chagas cardiomyopathy unless the acute phase is documented. Check documentation if the cardiac relationship is unclear.
Coding tip
Code B57.0 only when both acute Chagas disease and heart involvement are explicitly documented.