CPT® Code 66821

Discission of secondary membranous cataract (opacified posterior lens capsule and/or anterior hyaloid); laser surgery (eg, YAG laser) (1 or more stages)

A secondary membranous cataract, commonly known as an after-cataract, occurs when the posterior lens capsule or the anterior hyaloid membrane becomes opacified, leading to impaired vision. This condition, often referred to as posterior capsule opacification (PCO), can develop after cataract surgery, where the natural lens of the eye is replaced with an artificial intraocular lens. The opacification can obstruct light from passing through the lens, resulting in blurred or cloudy vision. The procedure described by CPT® Code 66821 involves the discission, or surgical opening, of this secondary membranous cataract using laser technology, specifically a YAG laser. This minimally invasive technique is performed to restore clear vision by creating an opening in the opacified area, allowing light to pass through unobstructed. The procedure may be conducted in one or more stages, depending on the severity of the opacification and the size of the opening required for optimal vision restoration.