CPT code 33425: Mitral valve repair, without prosthetic ring2026 Medicare rate & RVUs in Louisiana
Reports open surgical repair of the native mitral valve using cardiopulmonary bypass when the repair is performed without a prosthetic ring.
CMS doesn’t publish an office rate for 33425 in Louisiana.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
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What 33425 covers
A cardiac surgeon reports this service for open repair of a patient’s native mitral valve with cardiopulmonary bypass and without a prosthetic ring. Repair may address valve dysfunction through techniques involving the leaflets or supporting structures. It is typically performed in a hospital operating room; the operative report should establish the valve treated, the repair performed, use of bypass, and whether a ring was implanted.
Select this code when the documented repair is performed without a ring; use the ring-specific sibling when a prosthetic ring is used. The major-surgery global period includes the day-before preoperative visit and 90 days of related postoperative care. For multiple procedures in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Assistant-at-surgery payment may be available; co-surgeon payment requires supporting documentation, and team surgery is not permitted. Modifier 50 is inappropriate for this service.
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.
Where 33425 pays more and less in Louisiana
| Payment locality | Office | Facility |
|---|---|---|
| New Orleans, LA | Unavailable | $2,573.47 |
| Rest of Louisiana | Unavailable | $2,472.93 |
How the 33425 rate is calculated
Each of 33425’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.
How the rate is built · 33425
RVUs × geographic indexes × conversion factor
Work48.71
48.71 RVUs× 1.000 GPCI
Practice expense15.64
15.64 RVUs× 1.000 GPCI
Malpractice11.99
11.99 RVUs× 1.000 GPCI
Adjusted RVUs
76.3400
Conversion factor
$33.4009
Medicare rate
$2,549.82
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 33425
33425 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 33425
Mitral valve repair, without prosthetic ring
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 090 | Major surgery: the day before, the day of, and 90 days after are included. |
| Multiple procedures | 2 | Standard reduction: highest-valued procedure at 100%, others at 50%. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 2 | Paid. |
| Co-surgeons (62) | 1 | Permitted with supporting documentation. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
| Split (54/55/56) | 0.09/0.84/0.07 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 33425
Mitral valve repair, without prosthetic ring
90-day global period ends
Dec 30, 2026
Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).
Visit on Oct 31, 2026
Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.
Pre-op dayGlobal period
What modifiers do to the payment
Modifier 51 · payment effect
With and without the modifier
33425 without 51 · national facility
$2,549.82
Mitral valve repair, without prosthetic ring
33425-51 · Second procedure: 50%
$1,274.91
When this isn’t the highest-valued procedure in the session, Medicare pays 50% of its fee schedule amount (the highest is paid at 100%).
33425 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 33426Mitral valve repairWith prosthetic ring
- Both describe mitral valve repair with bypass. Choose 33425 when no prosthetic ring is used and 33426 when the repair includes a prosthetic ring.
- 33430Mitral valve replacementOpen surgical replacement
- 33425 is for repair of the native mitral valve; 33430 is for replacement of the mitral valve.
- 33418Mitral valve repairPercutaneous, initial prosthesis
- 33425 describes open surgical repair with bypass. 33418 is a transcatheter mitral repair code.
33425 billing questions
How does this differ from 33426?
This code describes mitral valve repair without a prosthetic ring. Use 33426 when the operative report documents repair with a prosthetic ring.
Is cardiopulmonary bypass part of the coded service?
Yes. This code represents mitral valve repair performed with cardiopulmonary bypass, so the operative documentation should support its use.
Are the preoperative visit and postoperative care separately included?
The major-surgery global period includes the day-before preoperative visit and 90 days of related postoperative care.
Can an assistant surgeon or co-surgeon be reported?
Assistant-at-surgery payment may be available. Co-surgeon payment requires supporting documentation; team surgery is not permitted.
Should modifier 50 be used?
No. The CMS bilateral adjustment does not apply to this code, and modifier 50 is inappropriate.
How are other procedures in the same session paid?
Under the standard multiple-procedure reduction, the highest-valued procedure is paid in full and other procedures are paid at 50%.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.
CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027
Show the CMS file lines behind this rate
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