ICD-10 Code B57.41 – Meningitis in Chagas’ disease (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B57.41 – Meningitis in Chagas’ disease
What it is
B57.41 identifies meningitis caused by Chagas disease, a parasitic infection due to Trypanosoma cruzi. Use it when the record specifically links meningitis to Chagas disease.
Clinical signs
Clinical features vary; refer to documentation. Meningitis may present with headache, fever, neck stiffness, or altered mental status, and the chart should support central nervous system involvement with Chagas disease.
When to use this code
Use this code when the clinician documents meningitis as a manifestation of Chagas disease, including confirmed or suspected infectious linkage in the record. It is appropriate for cases where the provider clearly identifies the parasitic cause. If the note only says meningitis without etiology, check documentation.
Do not use for
Do not use this code for meningitis from another cause, such as viral, bacterial, or fungal infection. Do not use it when Chagas disease is present without documented meningitis.
Coding tip
Code the Chagas complication only when the provider explicitly connects the neurologic condition to Chagas disease.