CPT® Code 0823T

Transcatheter insertion of permanent single-chamber leadless pacemaker, right atrial, including imaging guidance (eg, fluoroscopy, venous ultrasound, right atrial angiography and/or right ventriculography, femoral venography, cavography) and device evaluation (eg, interrogation or programming), when performed

The procedure described by CPT® Code 0823T involves the transcatheter insertion of a permanent single-chamber leadless pacemaker into the right atrium of the heart. A leadless pacemaker is a compact device that functions as a pulse generator, equipped with an integrated battery and electrode, designed to regulate heart rhythms. This specific type of pacemaker is utilized primarily for atrial pacing, which is essential in treating conditions such as sick sinus syndrome or sinus node dysfunction that can lead to symptomatic bradycardia. Additionally, it plays a role in reducing the frequency of paroxysmal atrial fibrillation, a condition characterized by intermittent episodes of rapid heart rate. Before the insertion of the pacemaker, surface electrocardiogram (EKG) electrodes or programming leads may be placed on the patient's chest to facilitate monitoring and programming of the device. The procedure begins with the preparation and draping of the groin area, followed by access to the femoral vein. A guidewire is then introduced, and venous ultrasound may be employed to visualize the anatomical structures, ensuring accurate placement of the device. The insertion process involves the placement of a femoral sheath, which is gradually dilated to accommodate the leadless pacemaker introducer. Once the introducer is in place, the guidewire is removed, and a steerable delivery catheter containing the preloaded leadless pacemaker is advanced through the inferior vena cava into the right atrium under fluoroscopic guidance. Contrast material may be injected to enhance visualization of the anatomy during this critical step. After confirming the correct positioning, the pacemaker's functionality is tested by sending signals from an external programming device. The device is then securely deployed against the endocardium, and various tests, including pacing capture threshold, impedance, and sensing amplitude, are conducted to ensure optimal performance. The tethering of the pacemaker allows for any necessary repositioning and retesting before the final release of the tether and withdrawal of the delivery catheter, completing the procedure.