ICD-10 Code H33.311 – Horseshoe tear of retina without detachment, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H33.311 – Horseshoe tear of retina without detachment, right eye
What it is
This code identifies a horseshoe-shaped retinal tear in the right eye without a retinal detachment. Use it when the chart documents a tear, but the retina remains attached.
Clinical signs
Typical findings include a retinal break seen on dilated exam, often with symptoms such as flashes, floaters, or a curtain-like shadow. Clinical features vary; refer to documentation.
When to use this code
Use H33.311 when the ophthalmology note clearly states a horseshoe tear of the right retina and confirms no detachment. It also fits follow-up visits for a documented tear that is being monitored or treated, if detachment is not present.
Do not use for
Do not use this code if the retina is detached, if the tear is in the left eye, or if the documentation only mentions a retinal hole or lattice degeneration. Check documentation.
Coding tip
Verify laterality and the absence of detachment in the final assessment before assigning H33.311.