No office rate
This code is for a partial AV canal defect. Code 33665 is for an intermediate defect; select based on the operative anatomy and documented classification.
On this page
CMS RVU26D · Effective 2026-10-01
33660 AV canal repair Medicare reimbursement rates in Pennsylvania
Reports surgical correction of a partial atrioventricular septal defect, typically involving a primum atrial opening and repair of the left atrioventricular valve. Compare 33660 office and facility rates across CMS payment localities in Pennsylvania.
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 33660 in Pennsylvania?
Pennsylvania 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
$1597.86–$1723.49
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.
Congenital cardiac surgery
About 33660: Partial atrioventricular septal defect repair
Reports surgical correction of a partial atrioventricular septal defect, typically involving a primum atrial opening and repair of the left atrioventricular valve.
This code describes open surgical repair of a partial atrioventricular septal defect, often called a partial AV canal defect. The operation commonly closes the primum atrial septal opening and addresses the cleft or regurgitation of the left atrioventricular valve. Congenital heart surgeons typically perform the repair in a hospital operating room, often with cardiopulmonary bypass. The operative report should establish the defect as partial and describe the septal and valve anatomy treated.
Report the code when the surgeon repairs the partial AV canal defect; patch use does not by itself change the code selection. Distinguish it from intermediate or complete AV canal repairs by the documented anatomy and the surgeon’s classification. The 90-day global period includes the day-before preoperative visit and related postoperative care during the following 90 days. For multiple procedures in one session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Modifier 50 is inappropriate for this intracardiac repair. An assistant at surgery may be paid; co-surgeon payment requires supporting documentation, and team surgery is not permitted.
CMS billing rules for 33660
- 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 RVU31.03 · 63%
- Practice expense (office) RVU10.25 · 21%
- Malpractice RVU7.83 · 16%
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.
33660 compared with similar codes
Office rates for Pennsylvania, from the same CMS release.
No office rate
This code addresses a partial AV canal defect. Code 33670 is used for a complete AV canal defect.
No office rate
Code 33641 is for closure of a secundum atrial septal defect. Use this code when the operation repairs a partial AV canal defect instead.
Compare 33660 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
Metropolitan Philadelphia →
Office / nonfacility
Unavailable
Facility
$1723.49
Rest Of Pennsylvania →
Office / nonfacility
Unavailable
Facility
$1597.86
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33660 billing questions
How is this code distinguished from an intermediate AV canal repair?
Use the documented anatomy and the surgeon’s classification. An intermediate defect has a ventricular component, while this code is for a partial defect.
Does patch use change the code?
No. Patch use does not determine the code level; the documented type of AV canal defect does.
Can the atrial septal and valve work be reported separately?
When those steps are part of repairing the partial AV canal defect, report the repair code for the operation rather than treating its integral components as separate procedures.
Should modifier 50 be reported?
No. The repair involves intracardiac anatomy for which bilateral adjustment and modifier 50 are inappropriate.
What documentation supports this code?
The operative report should identify a partial AV canal defect and describe the septal opening, atrioventricular valve findings, and repair performed.
How does the global period affect postoperative billing?
The 90-day global period includes the day-before preoperative visit and related postoperative care during the 90 days after surgery.
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.
4,02133641,,Repair heart septum defect,A,,28.84,9.81,NA,9.81,,7.28,45.93,45.93,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,02233645,,Revision of heart veins,A,,30.52,10.24,NA,10.24,,7.69,48.45,48.45,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,02333647,,Repair heart septum defects,A,,32.18,10.46,NA,10.46,,8.11,50.75,50.75,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,02433660,,Repair of heart defects,A,,31.03,10.25,NA,10.25,,7.83,49.11,49.11,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,02533665,,Repair of heart defects,A,,33.98,10.82,NA,10.82,,8.58,53.38,53.38,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,02633670,,Repair of heart chambers,A,,35.71,9.74,NA,9.74,,9.00,54.45,54.45,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,02733675,,Close mult vsd,A,,35.05,11.06,NA,11.06,,8.84,54.95,54.95,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00