ICD-10 Code B73.01 – Onchocerciasis with endophthalmitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B73.01 – Onchocerciasis with endophthalmitis
What it is
B73.01 identifies onchocerciasis, a parasitic infection, when it has caused endophthalmitis inside the eye. Use this code when documentation links the ocular inflammation to onchocerciasis.
Clinical signs
Clinical features vary; refer to documentation. Typical eye findings may include intraocular inflammation, pain, redness, blurred vision, or vision loss, but you should code only when endophthalmitis is documented.
When to use this code
Use B73.01 when the provider diagnoses onchocerciasis with endophthalmitis or clearly states that the eye infection is due to onchocerciasis. It may appear in ophthalmology, infectious disease, or tropical medicine records.
If the chart mentions onchocerciasis with another eye complication, or only suspected ocular involvement, check documentation before selecting this code. Link the diagnosis only when the relationship is explicit.
Do not use for
Do not use this code for onchocerciasis without endophthalmitis, or for eye inflammation from another cause. If the record does not specify endophthalmitis, check documentation.
Coding tip
Code the documented ocular complication exactly; do not assume endophthalmitis from nonspecific eye symptoms alone.