Primary cyst of pars plana, right eye

This diagnosis code signifies a congenital or acquired fluid-filled sac located in the pars plana region of the ciliary body in the right eye. These cysts are typically benign and often asymptomatic, but can occasionally cause visual disturbances or inflammation.

Apply this code when documentation specifies a primary cyst originating from the pars plana of the right eye. This diagnosis is supported by ophthalmic examination findings, such as slit-lamp biomicroscopy or ultrasound, confirming the presence and location of the cyst.

• Ensure the documentation clearly specifies "primary" to differentiate from secondary cysts.
• Verify the laterality is explicitly stated as "right eye" to avoid incorrect coding.
• Do not confuse with cysts of the iris or ciliary body not specifically located in the pars plana.