Primary cyst of pars plana, bilateral

This code signifies the presence of a primary, non-inflammatory fluid-filled sac located in the pars plana region of both eyes. These cysts are typically congenital or developmental in origin and are not secondary to trauma or other ocular conditions.

Apply this code when documentation explicitly states a diagnosis of a primary cyst of the pars plana affecting both eyes. This diagnosis is often made during a comprehensive ophthalmological examination, including slit-lamp biomicroscopy and potentially imaging studies.

• Ensure the documentation specifies "primary" and "bilateral" to support this code.
• Differentiate from secondary cysts, which would be coded based on their underlying cause.
• Do not use for inflammatory cysts or cysts located in other parts of the ciliary body or retina.