ICD-10 Code H35.433 – Paving Stone Degeneration of Retina, Bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H35.433 – Paving stone degeneration of retina, bilateral
What it is
This code identifies bilateral paving stone degeneration, a peripheral retinal degeneration seen in both eyes. It usually refers to well-defined areas of retinal thinning or chorioretinal atrophy at the edge of the retina.
Clinical signs
Findings are typically incidental on dilated eye exam, with peripheral atrophic patches and no acute inflammation. Clinical features vary; refer to documentation.
When to use this code
Use H35.433 when the ophthalmology note documents paving stone degeneration in both eyes. It is appropriate for routine eye evaluations, problem lists, or follow-up visits when the condition is confirmed and specifically bilateral. Check documentation if laterality is unclear.
Do not use for
Do not use this code for unilateral paving stone degeneration or for nonspecific retinal degeneration without bilateral documentation. If the record describes another retinal disorder, code the documented diagnosis instead.
Coding tip
Verify that both eyes are documented before assigning H35.433.