CPT® Code 0614T

The procedure described by CPT® Code 0614T involves the removal and replacement of a substernal implantable defibrillator pulse generator. An implantable cardioverter-defibrillator (ICD) is a medical device designed to monitor and treat life-threatening heart rhythms. The substernal ICD is specifically positioned with electrode(s) placed beneath the sternum, while the pulse generator, which is responsible for delivering electrical shocks to restore normal heart rhythm, is implanted in a subcutaneous pocket located on the left side of the chest, near the midaxillary line. This configuration allows the device to provide essential functions such as pacing to prevent tachycardia and delivering low-energy cardioversion or defibrillating shocks to address ventricular fibrillation. The pulse generator itself is a compact metal enclosure that houses electric circuits and a battery, typically lithium-based, which has a lifespan of approximately 5 to 10 years. However, replacement of the pulse generator may be necessary prior to the battery reaching its end of life if the device exhibits malfunctioning behavior or if there is an infection at the implantation site. The procedure is generally performed under sedation with local anesthesia, ensuring patient comfort while allowing the physician to access the device through an incision made over the generator. This detailed process ensures that the ICD continues to function effectively in monitoring and treating cardiac arrhythmias.