Summary & Overview
CPT 33509: Endoscopic Arm Arterial Graft Harvest for CABG
CPT code 33509 represents endoscopic harvest of an arterial graft from the patient’s arm for use in coronary artery bypass grafting (CABG). This code captures a minimally invasive graft procurement technique that supports revascularization for patients with obstructive coronary artery disease. Nationally, accurate coding for surgical graft harvests affects clinical documentation, operative reporting, and aggregation of procedure volumes and outcomes.
Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context, typical sites of service, and which payers are commonly involved in coverage decisions. The publication summarizes benchmarks and reimbursement context where available, notes relevant coding relationships, and outlines the clinical setting in which CPT code 33509 is used.
This resource provides concise guidance on the clinical intent of the code, the service setting, and what stakeholders should expect when CPT code 33509 appears on a surgical claim. Data not available in the input is explicitly identified elsewhere.
Billing Code Overview
CPT code 33509 describes an endoscopic harvest of an arterial graft from the patient's arm used to create a bypass around an obstructed coronary artery. The procedure involves obtaining a portion of a healthy artery via a minimally invasive, endoscopic approach for use as a conduit in coronary artery bypass grafting (CABG).
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Service type: Surgical graft harvest for coronary artery bypass
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Typical site of service: Hospital operating room or ambulatory surgical center where cardiac surgical procedures and vascular graft harvests are performed.
Clinical & Coding Specifications
Clinical Context
A 64-year-old male with a history of progressive exertional angina and multi-vessel coronary artery disease is evaluated after failing maximal medical therapy and noninvasive stress testing that demonstrates ischemia in the left anterior descending territory. Coronary angiography confirms a proximal LAD high-grade stenosis not amenable to percutaneous coronary intervention. The cardiothoracic surgical team schedules coronary artery bypass grafting (CABG) with planned use of an autogenous upper extremity artery conduit harvested endoscopically to minimize donor-site morbidity and improve cosmesis.
Preoperative workflow: the patient undergoes preoperative assessment including history and physical, medication reconciliation (antiplatelet/anticoagulant plan), limb vascular assessment, and informed consent specific to endoscopic arterial harvest risks (bleeding, nerve injury, conversion to open harvest). On the day of surgery the patient is placed under general anesthesia; the vascular/endoscopic surgeon performs an endoscopic upper extremity artery harvest through small incisions to obtain a segment of a healthy artery. The harvested artery is prepared and provided to the cardiac surgeon for creation of a bypass graft to the coronary circulation. Postoperative workflow includes monitoring for graft patency, donor arm perfusion checks, wound care, pain control, and documentation of the endoscopic harvest technique and any intraoperative complications or conversions.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 |