ICD-10 Code H34.811 – Central retinal vein occlusion, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H34.811 – Central retinal vein occlusion, right eye
What it is
H34.811 identifies a central retinal vein occlusion affecting the right eye. It is a blockage of the main retinal vein that can reduce venous drainage and impair vision.
Clinical signs
Typical findings include sudden, painless vision loss or blurring in the right eye. Funduscopic examination may show retinal hemorrhages, venous dilation, and optic disc swelling; clinical features vary, refer to documentation.
When to use this code
Use this code when the provider documents central retinal vein occlusion specifically in the right eye. It is appropriate for confirmed CRVO, or when the note clearly states a right-eye CRVO diagnosis being evaluated or followed.
Code it only when laterality is documented. If the record says retinal vein occlusion without specifying central type or right eye, check documentation before assigning H34.811.
Do not use for
Do not use this code for branch retinal vein occlusion, left-eye CRVO, or bilateral disease. Do not use it when the chart only says retinal vascular disorder or retinal hemorrhage without CRVO.
Coding tip
Verify both the vein occlusion type and laterality in the provider note before coding H34.811.