ICD-10 Code B65 – Schistosomiasis [bilharziasis] (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B65 – Schistosomiasis [bilharziasis]
What it is
B65 identifies schistosomiasis, a parasitic infection caused by Schistosoma species. Use it when documentation states bilharziasis or schistosomiasis without a more specific site or complication.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings include exposure history, eosinophilia, hematuria, abdominal symptoms, or signs of chronic organ involvement depending on the species.
When to use this code
Use B65 when the provider documents schistosomiasis or bilharziasis and does not specify a more detailed ICD-10 code. It may also fit confirmed infection noted in the chart with no organ-specific subtype described. Check documentation if the record mentions only exposure or suspected infection.
Do not use for
Do not use B65 for mere exposure, screening, or suspected schistosomiasis without confirmed diagnosis. If the record identifies a specific manifestation or organ involvement, code that more specific diagnosis instead.
Coding tip
Always look for the parasite species or affected site in the note before defaulting to B65.