ICD-10 Code B73.02 – Onchocerciasis with glaucoma (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B73.02 – Onchocerciasis with glaucoma
What it is
B73.02 identifies onchocerciasis, or river blindness, when glaucoma is present. Use it when documentation links the parasitic infection to glaucomatous eye disease.
Clinical signs
Patients may have ocular inflammation, visual loss, and findings consistent with glaucoma. Clinical features vary; refer to documentation for the specific eye exam results and whether the infection is active or remote.
When to use this code
Use this code when the provider documents onchocerciasis with glaucoma, or clearly states that glaucoma is due to onchocercal infection. It may appear in ophthalmology, infectious disease, or problem-list documentation. Check documentation if the relationship is not explicit.
Do not use for
Do not use B73.02 for glaucoma without documented onchocerciasis, or for onchocerciasis without glaucoma. If the record only says eye involvement or vision loss, verify the diagnosis before coding.
Coding tip
Assign B73.02 only when both the parasite infection and glaucoma are documented together.