Billing code 34401: Vein thrombectomyMedicare rate & RVUs in Washington
Open or catheter-assisted removal of clot from an iliac vein through a leg incision, typically performed for extensive venous thrombosis.
CMS doesn’t publish an office rate for 34401 in Washington.
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 34401 covers
This operation removes thrombus from an iliac vein through a leg incision, using direct extraction, a catheter, or both. Vascular surgeons typically perform it in a hospital operating room for substantial venous clot burden, such as iliofemoral deep vein thrombosis. The operative report should identify the treated vein, the leg incision used, and the method of clot removal.
Report 34401 when the documented target and approach match iliac-vein thrombectomy through a leg incision; use a different code when the operation involves another vein or an abdominal approach. The day-before preoperative visit and 90 days of related postoperative care are included in the global period. When multiple procedures occur in one session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. For bilateral reporting with modifier 50, CMS pays 150%. 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.
Where 34401 pays more and less in Washington
| Payment locality | Office | Facility |
|---|---|---|
| Rest Of Washington | Unavailable | $1,184.48 |
| Seattle (King Cnty) | Unavailable | $1,252.20 |
How the 34401 rate is calculated
Each of 34401’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 · 34401
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 25.86Practice expense 4.03Malpractice 6.60
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 34401
34401 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 34401
Vein thrombectomy
| 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) | 1 | Bilateral with modifier 50 pays 150% of the fee schedule amount. |
| 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 · 34401
Vein thrombectomy
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 50 · payment effect
With and without the modifier
34401 without 50 · national facility
$1,218.80
Vein thrombectomy
34401-50 · Bilateral: 150%
$1,828.20
Both sides on one line with modifier 50 are paid at 150% of the fee schedule amount (subject to multiple-procedure rules with other procedures).
34401 compared with similar codes
Compare codes
34401 vs 34421 vs 34451 vs 37187: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 34421Venous thrombectomy
- Choose 34401 for iliac-vein thrombectomy through a leg incision. 34421 describes vena cava and iliac-vein thrombectomy through an abdominal or retroperitoneal incision.
- 34451Venous thrombectomy
- 34451 concerns thrombectomy of the femoral vein through a leg incision; 34401 is for the iliac vein.
- 37187Venous thrombectomy
- 37187 is for percutaneous mechanical thrombectomy of a vein. 34401 describes thrombectomy through a leg incision.
34401 billing questions
How is 34401 distinguished from 34421?
34401 describes iliac-vein thrombectomy through a leg incision. 34421 is the related code for thrombectomy involving the vena cava and iliac vein through an abdominal or retroperitoneal incision.
Can a catheter be used for the clot removal?
Yes. The service may involve direct removal, catheter-assisted removal, or both, provided the operative approach and target match this code.
Is related postoperative care separately reported?
The day-before preoperative visit and 90 days of related postoperative care are included in the global period.
How is bilateral 34401 reported?
For bilateral performance, report modifier 50; CMS pays the bilateral procedure at 150%.
Can an assistant or co-surgeon be reported?
Assistant-at-surgery payment may be available. Co-surgeon payment requires supporting documentation; team surgery is not permitted.
What happens when another procedure is performed in the same session?
Under the standard multiple procedure reduction, the highest-valued procedure is paid in full and the others 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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