Summary & Overview
CPT 33322: Suture Repair of Great Vessels Using Cardiopulmonary Bypass
CPT code 33322 denotes suture repair of the heart’s great vessels performed with cardiopulmonary bypass. This high-acuity cardiothoracic surgery code represents complex operative management of major vascular structures — the aorta, pulmonary arteries and veins, and the vena cava — and is typically billed in inpatient hospital settings. Nationally, procedures captured by this code carry significant resource use, influence cardiac surgical quality metrics, and intersect with payer authorization and bundled payment considerations.
Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find: an explanation of the clinical service and typical site of care; common modifiers and administrative considerations; payer coverage patterns and billing nuances where available; and related coding context to support accurate claim submission. The summary highlights clinical context for coding decisions and the administrative elements that commonly affect reimbursement and utilization tracking. Data not available in the input are noted where applicable.
Billing Code Overview
CPT code 33322 describes a surgical procedure in which the provider performs suture repair of the great vessels of the heart — the large vessels that carry blood to and from the heart, including the aorta, pulmonary arteries and veins, and the vena cava. The procedure is performed using cardiopulmonary bypass (CPB) to support circulation and oxygenation while the heart and great vessels are repaired.
Service Type: Cardiothoracic surgical repair with cardiopulmonary bypass
Typical Site of Service: Inpatient hospital, operating room / cardiac surgery suite
Clinical & Coding Specifications
Clinical Context
A 62-year-old male presents with an acute ascending aortic tear identified after chest pain and syncope. Imaging demonstrates aortic root disruption with active hemorrhage. The patient is taken emergently to the operating room for open repair of the great vessels under cardiopulmonary bypass. A median sternotomy is performed, cardiopulmonary bypass is initiated, the aorta is controlled, and the laceration is repaired with sutures and graft material as needed. Intraoperative transesophageal echocardiography is used to confirm repair integrity. The postoperative workflow includes transfer to the cardiovascular intensive care unit for hemodynamic monitoring, ventilator management, anticoagulation adjustment, and surveillance for bleeding, neurologic events, and end-organ perfusion. Typical team members include a cardiothoracic surgeon, cardiac anesthesiologist, perfusionist, surgical assistants, and critical care nurses. Billing reflects an open repair of the great vessels performed with cardiopulmonary bypass and documentation should capture the surgical approach, use of CPB, specific vessels repaired, grafts or patches used, complications, and postoperative disposition.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when work, technical difficulty, or time substantially exceed typical for the procedure and documentation supports increased work. |