ICD-10 Code H33.11 – Cyst of ora serrata (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H33.11 – Cyst of ora serrata
What it is
H33.11 identifies a cyst of the ora serrata, the peripheral edge of the retina where it meets the ciliary body. Use it when documentation specifically names this retinal cyst.
Clinical signs
Clinical features vary; refer to documentation. This finding may be noted on ophthalmic exam or retinal imaging, often as an incidental peripheral lesion rather than a symptomatic retinal disorder.
When to use this code
Use H33.11 when the provider documents a cyst of the ora serrata as the diagnosis. It may be reported after eye evaluation, imaging, or specialist assessment that clearly identifies this specific lesion. If the note only says “retinal cyst,” check documentation for the exact site.
Do not use for
Do not use this code for other retinal detachments, tears, or generalized cystic eye findings. If the record does not specify the ora serrata, check documentation before assigning H33.11.
Coding tip
Code this only when the ora serrata location is explicitly documented.