ICD-10 Code H47.031 – Optic nerve hypoplasia, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H47.031 – Optic nerve hypoplasia, right eye
What it is
Optic nerve hypoplasia means the optic nerve is underdeveloped. This code specifies the right eye, so you should use it when documentation clearly identifies a congenital or developmental small optic nerve on that side.
Clinical signs
Findings may include reduced vision, a small optic disc, and abnormal appearance of the optic nerve on eye examination. Clinical features vary; refer to documentation.
When to use this code
Use H47.031 when the provider documents optic nerve hypoplasia limited to the right eye. It is appropriate for ophthalmology or neurology notes, imaging reports, or problem lists that clearly identify the right eye as affected.
If the record only says optic nerve hypoplasia without laterality, check documentation before coding. Use the code only when the diagnosis is confirmed or clearly stated by the clinician.
Do not use for
Do not use this code for optic nerve atrophy, optic neuritis, or nonspecific visual loss. If the note does not identify the right eye or the diagnosis is uncertain, check documentation.
Coding tip
Confirm laterality in the provider record; H47.031 is right eye specific and should not be assigned from a generic optic nerve abnormality.