ICD-10 Code B57 – Chagas’ disease (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B57 – Chagas’ disease
What it is
B57 identifies Chagas’ disease, an infection caused by Trypanosoma cruzi. Use it when the record documents acute or chronic Chagas disease, including cardiac or digestive involvement.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings include fever in acute infection and later cardiomyopathy, arrhythmias, or gastrointestinal enlargement in chronic disease.
When to use this code
Use B57 when the provider confirms Chagas’ disease or notes T. cruzi infection. It may apply to acute illness, chronic infection, or organ complications linked to the disease.
If the chart only mentions exposure, travel history, or suspected infection without confirmation, do not code B57. Check documentation for the specific stage and any related manifestations.
Do not use for
Do not use this code for other parasitic infections or nonspecific myocarditis without documented Chagas disease. Check documentation if the diagnosis is uncertain or unconfirmed.
Coding tip
Capture the documented stage and any associated organ involvement, because Chagas’ disease coding may depend on whether the case is acute or chronic.