ICD-10 Code B73.00 – Onchocerciasis with eye involvement, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B73.00 – Onchocerciasis with eye involvement, unspecified
What it is
This code identifies onchocerciasis, a parasitic infection, when the eyes are involved but the specific ocular manifestations are not documented. Use it when the chart confirms eye involvement without further detail.
Clinical signs
Clinical features vary; refer to documentation. Eye involvement may include irritation, visual disturbance, or inflammatory changes, but you should code only what is clearly recorded in the medical record.
When to use this code
Use B73.00 when the provider documents onchocerciasis and states that the eyes are affected, but does not specify keratitis, chorioretinitis, or another eye finding. It is appropriate when the record supports ocular involvement yet remains nonspecific. Check documentation if the eye diagnosis is uncertain.
Do not use for
Do not use this code for onchocerciasis without eye involvement, or when a more specific ocular manifestation is documented. If the record only mentions suspected infection or another eye disorder, code the documented condition instead.
Coding tip
Look for explicit provider wording linking onchocerciasis to eye involvement before assigning B73.00.