No office rate
Choose 33775 when pulmonary artery band removal is part of the atrial-baffle repair; 33774 describes the baffle repair without that added procedure.
On this page
CMS RVU26D · Effective 2026-10-01
33774 Atrial baffle repair Medicare reimbursement rates in Maine
Reports surgical repair of transposition of the great arteries using an atrial baffle to redirect blood flow between the heart’s chambers. Compare 33774 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 33774 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
$1572.11–$1603.51
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 33774: Transposition repair with atrial baffle
Reports surgical repair of transposition of the great arteries using an atrial baffle to redirect blood flow between the heart’s chambers.
A congenital cardiac surgeon creates an intra-atrial baffle to redirect systemic and pulmonary venous blood in a patient with transposition of the great arteries. This atrial-switch approach includes procedures such as the Mustard or Senning operation; it differs from an arterial switch, which reconstructs the great arteries. The operation is performed as open-heart surgery in a hospital setting.
Report 33774 when the atrial baffle repair is performed without the additional procedures described by related codes for pulmonary artery band removal, ventricular septal defect closure, or subpulmonic obstruction repair. The operative report should establish the transposition anatomy and document the baffle reconstruction and any additional cardiac work. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard multiple procedure reduction. Modifier 50 is inappropriate. Assistant-at-surgery payment may be available; co-surgeon payment requires supporting documentation, and team surgery is not permitted.
CMS billing rules for 33774
- 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 RVU30.94 · 61%
- Practice expense (office) RVU12.25 · 24%
- Malpractice RVU7.81 · 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.
33774 compared with similar codes
Office rates for Maine, from the same CMS release.
No office rate
33776 identifies atrial-baffle repair that also includes closure of a ventricular septal defect. Use 33774 when that added closure is not part of the operation.
No office rate
33777 is for atrial-baffle repair with repair of subpulmonic obstruction. 33774 describes the baffle repair without that additional repair.
No office rate
33778 involves reconstruction of the great arteries in transposition. 33774 instead reroutes blood at the atrial level with a baffle.
Compare 33774 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
$1572.11
Southern Maine →
Office / nonfacility
Unavailable
Facility
$1603.51
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33774 billing questions
How is 33774 different from an arterial switch?
33774 describes an atrial-level baffle that redirects venous blood. An arterial switch, represented by 33778, reconstructs the great arteries instead.
When should 33775, 33776, or 33777 be considered instead?
Use the corresponding related code when the atrial-baffle repair includes pulmonary artery band removal, ventricular septal defect closure, or repair of subpulmonic obstruction, respectively.
What documentation supports reporting 33774?
The operative report should identify the transposition anatomy and describe the atrial baffle reconstruction. It should also document any additional procedures that may distinguish a related code.
Can an assistant or co-surgeon be reported?
Assistant-at-surgery payment may be made. Co-surgeon payment requires supporting documentation; team surgery is not permitted.
Does modifier 50 apply to this repair?
No. CMS identifies bilateral adjustment as inappropriate for this code.
What postoperative care is included?
The 90-day global period includes the day-before preoperative visit and 90 days of 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.
4,0593376F,,Ajcc brstcncr stage 2 docd,I,,0.00,0.00,,0.00,,0.00,0.00,0.00,9,XXX,0.00,0.00,0.00,9,9,9,9,9,9,,33.4009,09,0,99,0.00,0.00,0.00
4,06033770,,Rpr tga w/o surg enlgmnt vsd,A,,38.09,10.96,NA,10.96,,9.61,58.66,58.66,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,06133771,,Rpr tga w/surg enlgmnt vsd,A,,39.61,10.39,NA,10.39,,10.02,60.02,60.02,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,06233774,,Rpr tga atrial baffle px,A,,30.94,12.25,NA,12.25,,7.81,51.00,51.00,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,06333775,,Rpr tga atr bfl rmvl plm bnd,A,,32.17,12.02,NA,12.02,,8.11,52.30,52.30,0,090,0.09,0.84,0.07,2,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,06433776,,Rpr tga atr bfl clsr vsd,A,,33.88,12.95,NA,12.95,,8.55,55.38,55.38,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,06533777,,Rpr tga bfl rpr sbpulm obstr,A,,33.32,11.21,NA,11.21,,8.39,52.92,52.92,0,090,0.09,0.84,0.07,2,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00