Summary & Overview
CPT 33269: Left Atrial Appendage Exclusion, Thoracoscopic Procedure
CPT code 33269 represents minimally invasive thoracoscopic exclusion or excision of the left atrial appendage. The procedure is performed to exclude a small pouchlike sac in the left atrium that can be a source of thrombus formation and subsequent embolic stroke. Nationally, this code is relevant to cardiovascular surgical services, hospital procedure volumes, and policy discussions about surgical alternatives to catheter-based left atrial appendage closure.
Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for the procedure, typical sites of service, and payer coverage landscape. The publication outlines benchmarks for utilization and reimbursement (where available), common billing considerations, and notable policy updates affecting coverage and coding practice.
This summary provides clinicians, billing professionals, and policy analysts with the clinical definition of the service, the primary settings where it occurs, and the aspects of payer policy and claims processing most likely to affect adoption and billing for CPT code 33269. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 33269 describes surgical exclusion, such as by excision, of the left atrial appendage, a small, pouchlike sac in the top left chamber of the heart. This procedure is a minimally invasive thoracoscopic surgical removal or exclusion of the left atrial appendage intended to reduce stroke risk associated with certain cardiac conditions.
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Service type: Minimally invasive thoracoscopic cardiac surgery
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Typical site of service: Operating room or ambulatory surgical center with thoracoscopic capability
Clinical & Coding Specifications
Clinical Context
A 72-year-old male with nonvalvular atrial fibrillation and a high CHA2DS2-VASc score presents for elective left atrial appendage exclusion to reduce stroke risk because long-term anticoagulation is contraindicated due to recurrent gastrointestinal bleeding. Preoperative evaluation includes transthoracic and transesophageal echocardiography to confirm left atrial appendage anatomy and exclude thrombus, basic labs (CBC, BMP, coagulation panel), and anesthesia assessment. The procedure is performed in a cardiovascular operating room or hybrid catheterization suite under general anesthesia using thoracoscopic minimally invasive techniques to excise or occlude the left atrial appendage. Intraoperative transesophageal echocardiography may be used for guidance. Postoperative care includes monitoring in a post-anesthesia care unit or cardiac stepdown unit, pain control, chest tube management if placed, and surveillance for bleeding, pericardial effusion, or stroke. Discharge planning addresses anticoagulation strategy, wound care, activity restrictions, and follow-up with cardiothoracic surgery and cardiology for imaging to confirm exclusion success.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when the procedure required substantially greater work than typical (documented). |