CPT® Code 67218

Destruction of localized lesion of retina (eg, macular edema, tumors), 1 or more sessions; radiation by implantation of source (includes removal of source)

The procedure described by CPT® Code 67218 involves the destruction of localized lesions in the retina, which may include conditions such as macular edema or tumors. This treatment utilizes radiation through the implantation of a radioactive source, which is a method often referred to as plaque radiotherapy or plaque brachytherapy. The procedure is specifically designed to target localized lesions within the eye, including the choroid, retina, or iris, with a focus on tumors like melanoma. The radioactive implant consists of a custom-made, sealed metal plaque that contains small radioactive seeds. These seeds are engineered to deliver a precise dose of radiation to the affected area over a specified duration, typically ranging from 4 to 7 days. Following this treatment period, the radioactive source is removed. The procedure begins with an incision in the conjunctiva, allowing the plaque to be positioned accurately over the lesion and secured to the sclera with sutures. After the plaque is in place, the conjunctiva is sutured closed, and the eye is protected with a lead shield to minimize radiation exposure to surrounding tissues. Upon completion of the treatment, the conjunctiva is incised again to remove the plaque, and the conjunctiva is sutured closed once more, ensuring proper healing and protection of the eye.