CPT® Code 62142

The procedure described by CPT® Code 62142 involves the surgical removal of a bone flap or a prosthetic plate that was previously implanted in the skull. This procedure is typically performed to address a defect in the skull that may have resulted from trauma, surgery, or other medical conditions. The term "bone flap" refers to a section of the skull that has been surgically removed and later replaced, while a "prosthetic plate" is an artificial device used to cover a defect in the skull. The removal process begins with the creation of a U-shaped incision over the area where the bone flap or prosthetic plate is located. Following this, a skin flap is elevated to expose the underlying structure. Any external fixation devices, such as wires, miniplates, or screws, that were used to secure the bone flap or plate are carefully removed. The surgeon then utilizes specialized tools, such as a drill or saw, to separate the bone flap or prosthetic plate from the skull. Once removed, the dura mater, which is the protective covering of the brain, is inspected to ensure its integrity. If necessary, a separate procedure may be performed to repair any defects in the skull that remain after the removal of the bone flap or prosthetic plate.