Summary & Overview
CPT 33274: Leadless Pacemaker Insertion or Replacement, Right Ventricle
CPT code 33274 covers percutaneous insertion or replacement of a permanent leadless pacemaker placed in the right ventricle through a femoral venous approach. The code consolidates procedural components, including imaging guidance and device testing/programming performed during the same encounter, which affects billing bundles and claim edits. Leadless pacemaker therapy matters nationally because it represents a growing alternative to transvenous systems for selected patients, with implications for utilization, device costs, and post-procedure follow-up care.
Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The analysis outlines coverage posture, common claim adjudication issues, and policy language that influences prior authorization and medical necessity assessment for leadless pacemaker implantation.
Readers will find a synthesis of clinical context for the procedure, how payers typically treat bundled imaging and programming services, common modifiers and claim scenarios that arise in practice, and benchmark considerations for site-of-service and utilization. The report also highlights areas where policy updates or coding clarification can affect reimbursement and administrative workflows. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 33274 describes the insertion or replacement of a permanent leadless pacemaker into the right ventricle via a catheter introduced through the femoral vein. This service includes imaging guidance and intraoperative testing/programming of the leadless pacemaker when those services are performed and therefore those components are not reported separately.
Service type: Percutaneous leadless pacemaker implantation or replacement
Typical site of service: Cardiac catheterization laboratory or interventional cardiology suite
Clinical & Coding Specifications
Clinical Context
A 78-year-old male with symptomatic bradycardia and intermittent syncope is evaluated in the electrophysiology clinic. He has a history of atrial fibrillation with slow ventricular response and prior left-sided device infection that contraindicates transvenous pacemaker placement. After pre-procedure evaluation including anticoagulation management, transthoracic echocardiography, and review of vascular access, the patient is scheduled for implantation of a leadless pacemaker.
In the electrophysiology lab or hybrid cardiac catheterization suite, the patient undergoes conscious sedation or monitored anesthesia care. Access to the right femoral vein is obtained percutaneously and a delivery catheter is advanced under fluoroscopic and/or intracardiac imaging guidance into the right ventricle. The leadless pacemaker is positioned, anchored to the endocardium, and tested for pacing threshold, sensing, and impedance. Device programming and imaging confirmation are completed before catheter and sheath removal and hemostasis is achieved at the femoral puncture site. The procedure includes intra-procedural imaging guidance and device testing/programming, which are bundled into the service under 33274.
Typical site of service: hospital outpatient department, outpatient surgical center, or inpatient operating room when clinical status requires admission. Service type: invasive cardiac electrophysiology device implantation (leadless ventricular pacemaker) via transcatheter femoral venous approach.
Coding Specifications
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