Billing code 33475: Pulmonary valve replacementMedicare rate & RVUs in Alaska
Reports open surgical replacement of the pulmonary valve when the operation replaces the valve rather than revising it or implanting one transcatheterly.
CMS doesn’t publish an office rate for 33475 in Alaska.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
On this page 9 sections
What 33475 covers
A cardiac surgeon reports this service for an operation that replaces the pulmonary valve, often for significant valve dysfunction in a patient with congenital heart disease or after prior cardiac surgery. It is performed in an operating room, generally in a hospital setting. The operative report should establish that the pulmonary valve was replaced, rather than revised or treated with a catheter-based implant.
Choose this code based on the procedure actually performed, not just the diagnosis or the presence of a prior valve operation. Document the operative approach, the valve treated, and any additional valve procedures. Medicare includes the day-before preoperative visit and 90 days of related postoperative care in the 90-day global period. 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 50% reduction. Modifier 50 is inappropriate for this code. Assistant-at-surgery payment may be available; co-surgeon payment requires supporting documentation, and team surgery is not permitted.
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.
33475 in Alaska*
| Payment locality | Office | Facility |
|---|---|---|
| Alaska* | Unavailable | $2,720.74 |
How the 33475 rate is calculated
Each of 33475’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 · 33475
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 41.34Practice expense 13.19Malpractice 9.80
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 33475
33475 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 33475
Pulmonary valve replacement
| 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 · 33475
Pulmonary valve replacement
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
33475 without 51 · national facility
$2,148.68
Pulmonary valve replacement
33475-51 · Second procedure: 50%
$1,074.34
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%).
33475 compared with similar codes
Compare codes
33475 vs 33474 vs 33477 vs 33465: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 33474Pulmonary valve surgery
- Use 33475 when the pulmonary valve is replaced; use 33474 when the documented operation is revision rather than replacement.
- 33477Pulmonary valve implant
- 33477 represents catheter-based pulmonary valve implantation. This code is for open surgical replacement.
- 33465Valve replacement
- Both are surgical valve replacement procedures, but 33465 concerns the tricuspid valve, not the pulmonary valve.
33475 billing questions
How is this code distinguished from pulmonary valve revision?
Report this code when the operation replaces the pulmonary valve. Code 33474 is the nearby revision code; use it when the documented procedure is a revision rather than replacement.
How does this differ from a transcatheter pulmonary valve procedure?
This code describes open surgical replacement. Code 33477 is the transcatheter pulmonary valve option when the valve is implanted by catheter.
Does modifier 50 apply?
No. CMS identifies bilateral adjustment as inappropriate for this code because of the descriptor or anatomy.
What postoperative care is included in the global period?
The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.
Can an assistant or co-surgeon be paid?
Assistant-at-surgery payment may be available. Co-surgeon payment requires supporting documentation; team surgery is not permitted.
How are other procedures in the same session paid?
The highest-valued procedure is paid in full, and other procedures are subject to the standard multiple-procedure reduction, with payment 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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