ICD-10 Code B73.1 – Onchocerciasis without eye disease (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B73.1 – Onchocerciasis without eye disease
What it is
B73.1 identifies onchocerciasis, a parasitic infection caused by Onchocerca volvulus, when eye involvement is not documented. Use this code for confirmed infection limited to non-ocular manifestations.
Clinical signs
Clinical features vary; refer to documentation. Common non-eye findings may include skin itching, nodules, or dermatitis, but you should not assume ocular disease unless it is specifically described.
When to use this code
Use B73.1 when the provider documents onchocerciasis and explicitly states there is no eye disease. It also fits cases describing skin or subcutaneous involvement without ocular findings. If the record is unclear about eye involvement, check documentation before coding.
Do not use for
Do not use this code if eye disease from onchocerciasis is documented; select the code that includes ocular involvement instead. Avoid it when the diagnosis is only suspected or when documentation is insufficient.
Coding tip
Confirm whether the note says “without eye disease” or describes ocular findings, because that wording determines the correct code.