ICD-10 Code H35.013 – Changes in Retinal Vascular Appearance, Bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H35.013 – Changes in retinal vascular appearance, bilateral
What it is
This code identifies bilateral abnormal retinal blood vessel appearance noted on eye examination. It describes a documented retinal vascular change, not a specific cause.
Clinical signs
Findings may include visible vessel narrowing, tortuosity, or other retinal vascular changes on fundus exam. Clinical features vary; refer to documentation.
When to use this code
Use H35.013 when the provider documents bilateral changes in retinal vascular appearance without naming a more specific retinal disorder. It fits ophthalmology notes describing abnormal retinal vessels in both eyes. If the record identifies an underlying disease or a different retinal diagnosis, code that condition instead.
Do not use for
Do not use this code for unilateral retinal vascular changes or for a clearly documented retinal disease with its own code. Check documentation if the note only mentions vascular disease elsewhere in the body.
Coding tip
Confirm bilateral involvement and the exact retinal wording before assigning H35.013.