33208

Insertion of new or replacement of permanent pacemaker with transvenous electrode(s); atrial and ventricular

CPT code 33208 represents the surgical insertion of a new or the replacement of a permanent pacemaker system that includes both atrial and ventricular transvenous electrodes (a dual-chamber pacemaker). This procedure is primarily performed to treat patients with symptomatic bradycardia, high-degree atrioventricular (AV) block, sick sinus syndrome, or other significant conduction system disorders that require pacing in both the upper (atrium) and lower (ventricle) chambers of the heart to restore or maintain physiological atrioventricular synchrony and cardiac output. The operation is typically performed in a cardiac catheterization laboratory or an operating room under local anesthesia combined with conscious sedation, or occasionally general anesthesia. After sterile preparation and draping, the physician makes a small incision typically in the infraclavicular region, most often on the left side. Venous access is obtained via the subclavian, cephalic, or axillary vein using a modified Seldinger technique or direct cutdown. Two pacing leads are introduced into the venous system under continuous fluoroscopic guidance. The ventricular lead is usually placed first and advanced through the right atrium and across the tricuspid valve into the right ventricular apex or septum, where it is actively or passively fixated to the endocardium. Subsequently, the atrial lead is advanced into the right atrial appendage or the lateral right atrial wall and secured. Both leads are then comprehensively tested using a pacing system analyzer to measure pacing thresholds, sensing amplitudes, and lead impedances to ensure optimal electrical performance and to verify the absence of diaphragmatic stimulation. Once satisfactory lead parameters are confirmed, the proximal ends of the leads are securely anchored to the underlying pectoral muscle fascia to prevent dislodgement. The physician then creates a subcutaneous or subpectoral pocket to house the pacemaker pulse generator. The leads are connected to the generator, which is then carefully placed into the prepared pocket. The device is interrogated and programmed to the appropriate settings. Finally, the pocket is irrigated, hemostasis is ensured, and the incision is closed in multiple layers. This meticulous process ensures a reliable permanent dual-chamber pacing system.

Clinical Indications

  • Symptomatic bradycardia due to sinus node dysfunction or sick sinus syndrome.
  • Complete (third-degree) atrioventricular (AV) block causing hemodynamic instability or symptoms.
  • Advanced second-degree AV block (Mobitz Type II) with symptoms or a wide QRS complex.
  • Symptomatic chronotropic incompetence failing to meet the body's metabolic demands.
  • High-grade AV block following an acute myocardial infarction.
  • Selected cases of prolonged PR interval with symptoms of pacemaker syndrome requiring dual-chamber pacing to restore atrioventricular synchrony.

Procedure Steps

  1. Patient is positioned, prepped, and draped in a sterile fashion under local anesthesia and conscious sedation.
  2. An infraclavicular incision is made, and a subcutaneous or subpectoral pocket is created for the pulse generator.
  3. Venous access is achieved via the cephalic, subclavian, or axillary vein using cutdown or percutaneous puncture techniques.
  4. Under fluoroscopic guidance, the ventricular pacing lead is advanced into the right ventricle and secured to the endocardium.
  5. The atrial pacing lead is subsequently advanced into the right atrium and secured to the endocardium.
  6. Pacing thresholds, sensing parameters, and lead impedances are thoroughly tested using a pacing system analyzer.
  7. Both the atrial and ventricular leads are securely anchored to the prepectoral fascia to prevent dislodgement.
  8. The transvenous leads are connected to the new dual-chamber pacemaker pulse generator.
  9. The pulse generator is inserted into the prepared subcutaneous or subpectoral pocket.
  10. The pocket is irrigated, hemostasis is achieved, and the incision is closed in multiple layers.

Coding Guidelines

  • CPT 33208 is strictly used for a complete dual-chamber pacemaker system insertion, which must include both the pulse generator and atrial and ventricular transvenous leads.
  • Do not report CPT 33208 in conjunction with 33212 or 33213 for the same session.
  • Radiological supervision and interpretation (e.g., fluoroscopy) are included in the procedure and must not be reported separately.
  • For the insertion of a single-chamber pacemaker system (atrial or ventricular), use CPT codes 33206 or 33207 instead.
  • If replacing only the pulse generator while leaving existing leads intact, report CPT 33228 for a dual-chamber generator replacement rather than 33208.
  • The facility may separately report the pulse generator and leads using applicable HCPCS supply codes depending on the payer.

Associated ICD-10 Codes