Billing code 37660: Vein ligationMedicare rate & RVUs in Utah
Reports operative ligation of a common iliac vein when the surgeon intentionally interrupts flow through that major pelvic vein.
CMS doesn’t publish an office rate for 37660 in Utah.
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 37660 covers
This service involves surgically identifying and tying off a common iliac vein to stop or intentionally interrupt venous flow. It may arise during vascular, trauma, or complex pelvic surgery, such as when the vein must be controlled for bleeding or another operative indication. Vascular, trauma, or other surgeons performing the operation report the service based on the vessel actually ligated, not merely the location of the incision.
The operative report should identify the common iliac vein, document the reason for ligation, and describe the procedure and side; document both sides when bilateral. This major surgery code has 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 is paid in full and the others at 50%. Bilateral reporting with modifier 50 is paid at 150%. Assistant-at-surgery payment may be allowed; co-surgeons are paid only with 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.
37660 in Utah
| Payment locality | Office | Facility |
|---|---|---|
| Utah | Unavailable | $1,182.63 |
How the 37660 rate is calculated
Each of 37660’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 · 37660
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 21.72Practice expense 9.02Malpractice 5.80
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 37660
37660 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 37660
Vein ligation
| 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 · 37660
Vein ligation
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
37660 without 50 · national facility
$1,220.47
Vein ligation
37660-50 · Bilateral: 150%
$1,830.71
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).
37660 compared with similar codes
Compare codes
37660 vs 37619 vs 37650 vs 35221 vs 37617: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 37619IVC ligation
- 37619 applies when the inferior vena cava is ligated. Choose 37660 when the common iliac vein is the vessel intentionally interrupted.
- 37650Vein ligation
- 37650 is for ligation of the femoral vein. The named vessel, not the general purpose of stopping venous flow, distinguishes it from 37660.
- 35221Vessel repair
- 35221 describes direct repair of an intra-abdominal blood vessel. Use 37660 when the common iliac vein is ligated rather than repaired.
- 37617Arterial ligation
- 37617 concerns ligation of a major abdominal artery. Code 37660 is for the common iliac vein.
37660 billing questions
How is this distinguished from ligation of the inferior vena cava?
Use this code when the vessel ligated is a common iliac vein. Ligation of the inferior vena cava is reported with 37619.
Does the 90-day global period include postoperative care?
Yes. The global period includes the day-before preoperative visit and 90 days of related postoperative care.
How are other procedures performed in the same session paid?
Under the standard multiple procedure reduction, the highest-valued procedure is paid in full and the others at 50%.
Can modifier 50 be used if both common iliac veins are ligated?
CMS identifies this as a bilateral procedure; reporting with modifier 50 is paid at 150%. Document the bilateral work in the operative report.
Can an assistant or co-surgeon be reported?
Assistant-at-surgery payment may be allowed. Co-surgeons are paid only with supporting documentation, and team surgery is not permitted.
What documentation supports reporting this code?
Document that a common iliac vein was ligated, the operative indication, the side or sides treated, and the surgical work performed.
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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