ICD-10 Code H33.323 – Round hole, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H33.323 – Round hole, bilateral
What it is
H33.323 identifies round retinal holes in both eyes. This code is used when the retina has a full-thickness opening, documented as bilateral.
Clinical signs
Patients may report flashes, floaters, or a peripheral visual field defect. Clinical features vary; refer to documentation and ophthalmology findings for confirmation of bilateral round holes.
When to use this code
Use this code when the provider documents round holes in both retinas, whether found on routine exam or after symptoms prompt evaluation. It is appropriate when the record clearly states bilateral involvement. If laterality is unclear, check documentation.
Do not use for
Do not use it for retinal tears, detachments, or unspecified retinal lesions unless the record specifically says round hole. Do not assume bilateral disease from a single-eye finding.
Coding tip
Verify that the ophthalmology note states “round hole” and “bilateral” before assigning H33.323.