ICD-10 Code H33.19 – Other retinoschisis and retinal cysts (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H33.19 – Other retinoschisis and retinal cysts
What it is
H33.19 identifies other forms of retinoschisis and retinal cysts, meaning a splitting of the retinal layers or a cystic retinal change not classified elsewhere. Use it when the documentation names this specific retinal finding.
Clinical signs
Findings may include a retinal splitting appearance, cystic retinal elevation, or incidental ophthalmic exam abnormalities. Clinical features vary; refer to documentation and the ophthalmology assessment.
When to use this code
Use H33.19 when the provider documents other retinoschisis or retinal cysts and does not specify a more exact retinal disorder. It is appropriate for charted diagnoses from retinal examination, imaging, or specialist evaluation. Code it only when the condition is confirmed in the record.
Do not use for
Do not use this code for retinal detachment, retinal tears, or other clearly named retinal disease categories. If the note is nonspecific or unclear, check documentation before assigning H33.19.
Coding tip
Match the code to the exact ophthalmology wording; if the record says only “retinal cyst” without detail, confirm that H33.19 is the intended diagnosis.