ICD-10 Code B57.5 – Chagas’ Disease (Chronic) with Other Organ Involvement (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B57.5 – Chagas’ disease (chronic) with other organ involvement
What it is
B57.5 identifies chronic Chagas disease when Trypanosoma cruzi has affected organs other than the heart or digestive tract. Use it for documented chronic infection with organ involvement that does not fit another more specific Chagas code.
Clinical signs
Clinical features vary; refer to documentation. Chronic Chagas disease may show evidence of organ dysfunction, and the involved organ should be clearly identified in the record.
When to use this code
Use B57.5 when the provider documents chronic Chagas disease with involvement of another organ, such as a noncardiac, nondigestive site. The record should support both chronic infection and the specific organ affected. If the note only says Chagas disease without organ detail, check documentation before coding.
Do not use for
Do not use this code for acute Chagas disease or for chronic Chagas disease limited to the heart or digestive system. If the organ involvement is unspecified or not documented, check documentation.
Coding tip
Code the chronic Chagas diagnosis only when the chart names the affected organ and confirms chronic involvement.