33255 Ablate atria without bypass external
Also known as: atrial ablation without bypass, extensive atrial ablation off-pump
Ablation of atrial dysrhythmia regions without cardiopulmonary bypass extension, treating more extensive atrial arrhythmia substrate without requiring heart-lung machine.
In Plain Language
burning larger area of atrium without heart-lung machine
Clinical Context
Used for atrial fibrillation or flutter requiring broader ablation zones when bypass is not needed; typically for paroxysmal or persistent atrial fibrillation.
RVU Breakdown
| Work RVU | 28.31 |
| Total RVU | 28.31 |
Est. Medicare Payment
National estimate based on 2026 CMS PFS Conversion Factor ($33.40). Actual payment varies by locality (GPCI adjustment).
Billing & Documentation
As a surgical CPT code, proper documentation must include the operative report detailing the procedure performed, patient positioning, approach, findings, and any complications. This code has a 90-day global period, which includes the day of the procedure, 1 day preoperative, and 90 days of postoperative care. Ensure the diagnosis code (ICD-10) supports medical necessity for the procedure.
How This Code Compares
With a work RVU of 28.31, this code ranks in the 91st percentile among Surgery codes — 3.5x the median (8.00). The highest wRVU in this category is 106.19.
Specialties
Frequently Asked Questions
What is CPT code 33255?
CPT 33255 (Ablate atria without bypass external) is a Surgery code. Ablation of atrial dysrhythmia regions without cardiopulmonary bypass extension, treating more extensive atrial arrhythmia substrate without requiring heart-lung machine.
What is the wRVU value for CPT 33255?
The work RVU for CPT 33255 is 28.31. This code is primarily used by Cardiac Surgery, Cardiothoracic Surgery, Electrophysiology. It has a 90-day global period.
When is CPT 33255 used?
Used for atrial fibrillation or flutter requiring broader ablation zones when bypass is not needed; typically for paroxysmal or persistent atrial fibrillation.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.