ICD-10 Code H33.319 – Horseshoe tear of retina without detachment, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H33.319 – Horseshoe tear of retina without detachment, unspecified eye
What it is
This code identifies a horseshoe-shaped retinal tear in an unspecified eye when the retina has not detached. It indicates a break in the retina that can increase the risk of future detachment.
Clinical signs
Typical findings include a retinal tear seen on examination, sometimes with flashes, floaters, or an asymptomatic incidental discovery. Clinical features vary; refer to documentation.
When to use this code
Use H33.319 when the provider documents a horseshoe retinal tear without detachment and does not specify right or left eye. It also fits when the tear is confirmed on ophthalmic exam or imaging and there is no retinal detachment present. Check documentation if the note mentions detachment or another retinal break type.
Do not use for
Do not use this code if retinal detachment is documented, or if the provider specifies a different eye laterality. It is also not appropriate for non-horseshoe retinal tears unless documentation confirms this tear type.
Coding tip
Assign laterality-specific codes when the record identifies the affected eye; use the unspecified code only when the chart truly lacks that detail.