H33.1
Non-billableRetinoschisis and retinal cysts
H33.1 is the ICD-10-CM code for Retinoschisis and retinal cysts. It is a non-billable category code — use a more specific child code such as H33.10 for billing.
H00-H59 Diseases of the eye and adnexa
What this means — in plain language
MedlinePlus · NIHWhat are retinal disorders? Retinal disorders are conditions that affect the retina, the thin light-sensitive tissue at the back of your eye. The retina senses light and sends signals to your brain so you can see. Retinal disorders can cause blurred or distorted vision. Some can lead to vision loss or blindness . What causes retinal disorders? The causes of retinal disorders vary. Aging is a common factor, but other…
Read more about Retinal Disorders at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Excludes1 — not coded here
Conditions mapped to this code
MedlinePlus · NIHPlain-language health-topic references grounded in MedlinePlus (NIH/NLM).
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
Look up another ICD-10 code or condition