ICD-10 Code H47.013 – Ischemic optic neuropathy, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H47.013 – Ischemic optic neuropathy, bilateral
What it is
Ischemic optic neuropathy is damage to the optic nerve from reduced blood flow. This code specifies that the condition affects both eyes.
Clinical signs
Typical findings include sudden, painless vision loss or visual field defects. Optic disc changes may be present; clinical features vary, so refer to documentation.
When to use this code
Use this code when the provider documents bilateral ischemic optic neuropathy, including cases described as bilateral optic nerve infarction or ischemic optic nerve injury. Code only when both eyes are explicitly involved in the record. If laterality is unclear, check documentation.
Do not use for
Do not use it for unilateral ischemic optic neuropathy, optic neuritis, or other causes of vision loss. If the chart does not confirm bilateral involvement, do not assume this code.
Coding tip
Verify that the documentation states “bilateral” or clearly describes both optic nerves before assigning H47.013.