ICD-10 Code H47.091 – Other disorders of optic nerve, not elsewhere classified, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H47.091 – Other disorders of optic nerve, not elsewhere classified, right eye
What it is
This code identifies a disorder affecting the optic nerve in the right eye when the specific condition is not described by another ICD-10-CM code. Use it for documented right-sided optic nerve abnormalities that remain unspecific.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include decreased visual acuity, visual field defects, or optic nerve abnormalities noted on eye examination or imaging.
When to use this code
Use this code when the provider documents an unspecified or other optic nerve disorder limited to the right eye and no more specific diagnosis is available. It may apply after evaluation when the record confirms optic nerve involvement but does not name a distinct entity. Check documentation for laterality and specificity.
Do not use for
Do not use this code for left eye or bilateral optic nerve disorders, or when a more specific optic neuropathy diagnosis is documented. If the condition is better described elsewhere, code that diagnosis instead.
Coding tip
Verify laterality in the note and code the most specific optic nerve diagnosis documented.