ICD-10 Code H33.329 – Round hole, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H33.329 – Round hole, unspecified eye
What it is
This code identifies a round retinal hole in an unspecified eye. It documents a full-thickness break in the retina when the chart does not specify laterality or additional detail.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include a retinal defect seen on examination, sometimes with symptoms such as flashes, floaters, or blurred vision.
When to use this code
Use this code when the provider documents a round hole of the retina and does not identify the right or left eye. It is appropriate for confirmed retinal hole documentation, including incidental findings and follow-up visits. If laterality or associated retinal detachment is documented, code more specifically.
Do not use for
Do not use this code for retinal tears, lattice degeneration without a hole, or retinal detachment. If the note specifies another eye disorder or laterality, choose the more precise code.
Coding tip
Check the ophthalmology note for laterality and any associated detachment before assigning H33.329.