Use 33250 when the operative ablation is performed without cardiopulmonary bypass; 33251 is the corresponding bypass code.
On this page
CMS RVU26D · Effective 2026-10-01
33250 Cardiac ablation Medicare reimbursement rates in Oregon
Reports operative destruction of a cardiac arrhythmia focus or pathway when the surgeon performs the ablation without cardiopulmonary bypass. Compare 33250 office and facility rates across CMS payment localities in Oregon.
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
What does Medicare pay for 33250 in Oregon?
Oregon has 2 payment localities in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the 2 payment areas shown below, using the same CMS release.
Office / nonfacility
No supported rate
Facility setting
$1330.41–$1392.02
2 of 2 localities have a supported rate.
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Cardiac surgery
About 33250: Operative ablation of dysrhythmic focus
Reports operative destruction of a cardiac arrhythmia focus or pathway when the surgeon performs the ablation without cardiopulmonary bypass.
This service is surgical ablation of a localized source or conducting pathway responsible for an abnormal heart rhythm, performed without cardiopulmonary bypass. A cardiac surgeon typically performs it in an operating room, sometimes with an electrophysiologist involved in identifying the target. It is distinct from catheter-based ablation and from procedures aimed at broader atrial tissue, such as surgical ablation for atrial fibrillation.
Report 33250 when the operative target is a dysrhythmic focus or pathway and the operation is performed without bypass. The operative report should identify the rhythm or pathway treated, the target and ablation performed, and whether bypass was used. CMS assigns a 90-day global period, including the day-before preoperative visit and related postoperative care. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and others at 50%. Modifier 50 is inappropriate. Assistant-at-surgery payment may be made; co-surgeon payment requires supporting documentation, and team surgery is not permitted.
CMS billing rules for 33250
- Global period
- Major surgery with a 90-day global period: the day-before preoperative visit and 90 days of related postoperative care are included.
- Multiple procedures
- Standard multiple procedure reduction: the highest-valued procedure is paid in full and others at 50% when performed in the same session.
- Bilateral procedures
- Bilateral adjustment does not apply; the descriptor or anatomy makes modifier 50 inappropriate.
- Assistant at surgery
- Assistant at surgery may be paid.
- Co-surgeons
- Co-surgeons paid only with supporting documentation.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU25.25 · 61%
- Practice expense (office) RVU10.37 · 25%
- Malpractice RVU6.05 · 15%
16
Medicare services in 2024 · #6034 by national volume
This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.
33250 compared with similar codes
Office rates for Oregon, from the same CMS release.
33254 describes limited surgical ablation of atrial tissue. Use 33250 for operative treatment of a dysrhythmic focus or pathway.
33255 describes extensive atrial tissue ablation without bypass, rather than treatment of a localized dysrhythmic focus or pathway.
33256 describes extensive atrial tissue ablation with bypass. 33250 concerns a dysrhythmic focus or pathway and is performed without bypass.
Compare 33250 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
2 of 2 payment localities
Portland →
Office / nonfacility
Unavailable
Facility
$1392.02
Rest Of Oregon →
Office / nonfacility
Unavailable
Facility
$1330.41
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33250 billing questions
How is 33250 distinguished from 33251?
The distinction is use of cardiopulmonary bypass: 33250 is for operative ablation without bypass; 33251 is the bypass counterpart.
Is this code for catheter ablation?
No. It describes operative ablation of a dysrhythmic focus or pathway, not an electrophysiology catheter ablation.
How does 33250 differ from the atrial ablation codes?
33250 targets a dysrhythmic focus or pathway. Codes 33254–33256 describe surgical ablation of atrial tissue, with code selection reflecting extent and bypass use.
What should the operative report document?
Document the rhythm or pathway treated, the operative target and ablation performed, and whether cardiopulmonary bypass was used.
Can modifier 50 be reported?
No. CMS identifies bilateral adjustment as inappropriate for this code.
How are multiple procedures and surgical assistants handled?
For procedures in the same session, CMS pays the highest-valued procedure in full and others at 50%. Assistant-at-surgery payment may be made; co-surgeon payment requires supporting documentation.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
