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CMS RVU26D · Effective 2026-10-01

33621 Cardiac stent Medicare reimbursement rates in Maine

Reports stent placement through direct chest access to treat a congenital cardiovascular narrowing, with balloon dilation included when performed as part of the service. Compare 33621 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 33621 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

$816.96–$834.16

2 of 2 localities have a supported rate.

Lowest: Rest Of Maine

Highest: Southern Maine

A spread of $17.20 per service.

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.

Find 33621 in your payment locality →

Cardiac surgery

About 33621: Transthoracic congenital heart stent placement

Reports stent placement through direct chest access to treat a congenital cardiovascular narrowing, with balloon dilation included when performed as part of the service.

This service places a stent in a narrowed cardiovascular structure using catheter access through the chest, rather than a routine percutaneous vascular approach. It is generally performed in an operating room by a cardiac surgeon, often during treatment of congenital heart disease; the target may include a pulmonary artery or another surgically accessible vessel. Balloon dilation may accompany the stent placement as part of the service.

Report the code when the operative record identifies the treated lesion and vessel, the transthoracic access, and the stent placement. The CMS 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures are performed in the same session, the highest-valued is paid in full and the others at 50%. Modifier 50 is inappropriate for this service. Assistant-at-surgery payment may be made; co-surgeon payment requires supporting documentation, and team-surgery payment is not permitted.

CMS billing rules for 33621

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 RVU15.78 · 60%
  • Practice expense (office) RVU6.75 · 25%
  • Malpractice RVU3.97 · 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.

33621 compared with similar codes

Office rates for Maine, from the same CMS release.

37236

Arterial stent

First treated artery

$2,394.50–$2,554.74

Use 33621 for stent placement through transthoracic access; 37236 describes percutaneous stenting of an initial noncoronary vessel.

92997

Pulmonary angioplasty

Single vessel

No office rate

92997 describes percutaneous pulmonary artery balloon angioplasty. It is not the transthoracic stent service described by 33621.

33622

Congenital heart surgery

Complex reoperation

No office rate

33622 describes a redo operation for a complex cardiac anomaly; 33621 concerns catheter-based stent placement through chest access, not the redo repair itself.

Compare 33621 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

Office and facility base rates · shared scale starting at $0

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33621 billing questions

How is this different from percutaneous stent placement?

This code describes catheter access through the chest for stent placement. A percutaneous stent code describes a different access route.

Is balloon dilation separately reported with the stent?

Balloon dilation performed as part of the transthoracic stent procedure is included in this service; the code covers stent placement with or without that dilation.

Can modifier 50 be used for right- and left-sided treatment?

No. Modifier 50 is inappropriate for this code; report the service based on the procedure performed and applicable coding instructions.

What documentation supports the service?

Document the congenital or cardiovascular lesion, the vessel treated, transthoracic catheter access, and the stent placement. Include balloon dilation details when performed.

How does the 90-day global period affect postoperative care?

The day-before preoperative visit and 90 days of related postoperative care are included in the global period.

Can an assistant or co-surgeon be reported?

Assistant-at-surgery payment may be made. Co-surgeon payment requires supporting documentation, while team-surgery payment is not permitted.

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.

RVUs for 33621PPRRVU2026_Oct_nonQPP.csv, line 4,019 (RVU26D)
Open CMS sourceHow this rate is calculatedBuild a fee sheet