ICD-10 Code H47.09 – Other disorders of optic nerve, not elsewhere classified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H47.09 – Other disorders of optic nerve, not elsewhere classified
What it is
This code covers optic nerve disorders that do not fit a more specific diagnosis. Use it when documentation identifies an optic nerve problem, but the record does not name a classified condition.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings may include decreased vision, visual field loss, optic disc abnormalities, or optic nerve dysfunction on eye examination.
When to use this code
Use H47.09 when the provider documents an unspecified or other optic nerve disorder and no more specific ICD-10-CM code applies. It may support coding for atypical optic nerve pathology, pending further clarification. Check documentation if the note suggests a named optic neuropathy.
Do not use for
Do not use this code when the chart supports a specific optic nerve diagnosis such as optic neuritis, ischemic optic neuropathy, or optic atrophy. Also avoid it if the only issue is a visual symptom without optic nerve disease.
Coding tip
Query the provider for the exact optic nerve diagnosis before defaulting to H47.09.