No office rate
33750 describes a subclavian-to-pulmonary artery shunt. Use 33606 for the pulmonary artery-to-aorta anastomosis documented in the operative report.
On this page
CMS RVU26D · Effective 2026-10-01
33606 Cardiac anastomosis Medicare reimbursement rates in Maine
Reports an operative connection between a pulmonary artery and the aorta to increase pulmonary blood flow in selected congenital heart conditions. Compare 33606 office and facility rates across CMS payment localities in Maine.
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 33606 in Maine?
Maine 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
$1548.30–$1578.47
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 33606: Pulmonary artery-to-aorta anastomosis
Reports an operative connection between a pulmonary artery and the aorta to increase pulmonary blood flow in selected congenital heart conditions.
This open congenital heart operation creates a connection between a pulmonary artery and the aorta to direct systemic blood into the pulmonary circulation. It may be used as palliation for selected cyanotic congenital heart defects when pulmonary blood flow is inadequate. A congenital cardiac surgeon typically performs the procedure in a hospital operating room; the operative report should identify the vessels connected and the specific repair performed.
Report 33606 when the documented operation matches this direct arterial connection, rather than a differently configured systemic-to-pulmonary shunt or a repair of the underlying defect. The operative note should support the indication, anatomy, and work performed, and identify any other cardiac procedures done during the same session. The service has a 90-day global period, including the day-before preoperative visit and related postoperative care. When multiple procedures are performed in one session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. An assistant at surgery may be paid; co-surgeon payment requires supporting documentation. Modifier 50 is not appropriate for this anatomy, and team-surgery billing is not permitted.
CMS billing rules for 33606
- 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 RVU30.74 · 61%
- Practice expense (office) RVU11.74 · 23%
- Malpractice RVU7.74 · 15%
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.
33606 compared with similar codes
Office rates for Maine, from the same CMS release.
No office rate
33755 identifies a central systemic-to-pulmonary shunt. Compare its defined configuration with the direct arterial anastomosis documented for 33606.
No office rate
33762 describes another systemic-to-pulmonary shunt configuration. Select the code that matches the vessels and technique recorded by the surgeon.
Compare 33606 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
Rest Of Maine →
Office / nonfacility
Unavailable
Facility
$1548.30
Southern Maine →
Office / nonfacility
Unavailable
Facility
$1578.47
Need rates for a whole code list?
Fee-sheet and API access are in early access. Tell us which codes and locations your team needs.
33606 billing questions
How is 33606 distinguished from a systemic-to-pulmonary shunt code?
Choose 33606 when the operative report supports this direct pulmonary artery-to-aorta anastomosis. Other shunt codes describe different configurations, such as a subclavian-to-pulmonary artery connection.
What documentation supports reporting 33606?
The operative report should identify the congenital condition, the pulmonary artery and aortic anatomy, and the connection created. It should also describe any additional cardiac procedures performed during the session.
Can modifier 50 be used for this service?
No. The anatomy is not reported as a paired bilateral service, so modifier 50 is inappropriate.
Can an assistant surgeon or co-surgeon be reported?
An assistant at surgery may be paid. Co-surgeon payment requires supporting documentation, and team-surgery billing is not permitted for this service.
How does the multiple-procedure reduction affect 33606?
For procedures performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction.
What care is included in the global period?
The 90-day global period includes the day-before preoperative visit and related postoperative care.
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.
4,00733572,,Open coronary endarterectomy,A,,4.33,0.87,NA,0.87,,1.07,6.27,6.27,0,ZZZ,0.00,0.00,0.00,0,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,00833600,,Closure of valve,A,,29.55,11.68,NA,11.68,,7.44,48.67,48.67,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,00933602,,Closure of valve,A,,28.61,11.49,NA,11.49,,7.22,47.32,47.32,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,01033606,,Anastomosis/artery-aorta,A,,30.74,11.74,NA,11.74,,7.74,50.22,50.22,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,01133608,,Repair anomaly w/conduit,A,,31.08,11.98,NA,11.98,,7.84,50.90,50.90,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,01233610,,Repair by enlargement,A,,30.62,11.88,NA,11.88,,7.72,50.22,50.22,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,01333611,,Repair double ventricle,A,,34.68,10.96,NA,10.96,,8.74,54.38,54.38,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00