CPT® Code 33243

The procedure described by CPT® Code 33243 involves the surgical removal of one or more single or dual chamber implantable defibrillator electrodes through a thoracotomy. This approach is typically necessary when the electrodes, which are critical components of an implantable defibrillator system, are either malfunctioning or damaged, or when there is an infection at the site of the generator or leads. Additionally, the removal may be required if the leads are causing interference with blood flow. The thoracotomy allows for direct access to the heart, particularly when the leads are deeply embedded in the myocardium or when dense scar tissue and adhesions prevent a transvenous extraction. The procedure entails making an incision in the chest to expose the heart, disconnecting the lead from the generator, and carefully dissecting the leads from the surrounding tissue to ensure complete removal. This surgical intervention is critical for patient safety and is performed under specific clinical circumstances that necessitate such an invasive approach.