Cyst of left orbit

This code signifies the presence of a fluid-filled sac or abnormal cavity located within the bony socket that houses the left eyeball. These cysts can vary in size and origin, potentially causing symptoms such as proptosis, vision changes, or discomfort due to pressure on orbital structures.

Apply this code when documentation clearly indicates a diagnosed cyst affecting the left orbit. This typically follows imaging studies such as CT or MRI, and clinical examination findings consistent with an orbital mass.

• Specify laterality; ensure documentation confirms the left orbit.
• Distinguish from orbital tumors or inflammatory conditions, which have different codes.
• If the cyst is congenital, consider additional codes from Q10-Q18 for congenital malformations of the eye, adnexa, and orbit.