Parastc cyst of iris, ciliary body or ant chamber, right eye

This code signifies the presence of an abnormal sac-like structure, caused by a parasitic infection, located within the iris, ciliary body, or anterior chamber of the right eye. These cysts can lead to inflammation, vision impairment, and other ocular complications.

Apply this code when documentation clearly indicates a parasitic cyst affecting the anterior segment structures of the right eye. Supporting documentation should specify the parasitic etiology and the exact location within the right eye.

• Ensure the laterality (right eye) is explicitly documented.
• Do not confuse with non-parasitic cysts of the iris or ciliary body (e.g., H21.4-).
• Code any underlying parasitic infection (e.g., B69.1 for cysticercosis) as a primary diagnosis if it is the reason for the encounter, with this code as a secondary diagnosis.