Billing code 37780: Vein revisionMedicare rate & RVUs in Washington
Reports surgical revision of previously treated leg veins, typically for recurrent or residual varicosities after an earlier vein ligation.
CMS doesn’t publish an office rate for 37780 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 37780 covers
This service involves surgically revising a previously treated vein in the leg, often when varicosities recur or persist after prior ligation. A vascular surgeon or other qualified surgeon may identify and revise the affected vein, with ligation, division, or excision as needed. These procedures are generally performed in an operating-room setting; the operative report should identify the prior treatment and the vein or recurrent disease addressed.
Report the code for revision of the previously treated leg vein, rather than for primary treatment of a new varicose-vein cluster. Documentation should support the recurrent or residual condition and describe the revision performed. The 90-day global includes the day-before preoperative visit and 90 days of related postoperative care. For bilateral surgery, modifier 50 is paid at 150%. When multiple procedures occur in one session, the highest-valued procedure is paid in full and others at 50%. Assistant-at-surgery payment is barred; co-surgeons require 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 37780 pays more and less in Washington
| Payment locality | Office | Facility |
|---|---|---|
| Rest Of Washington | Unavailable | $217.71 |
| Seattle (King Cnty) | Unavailable | $234.70 |
How the 37780 rate is calculated
Each of 37780’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 · 37780
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 3.83Practice expense 1.79Malpractice 0.99
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 37780
37780 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 37780
Vein revision
| 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) | 1 | Not paid (statutory restriction). |
| 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 · 37780
Vein revision
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
37780 without 50 · national facility
$220.78
Vein revision
37780-50 · Bilateral: 150%
$331.17
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).
37780 compared with similar codes
Compare codes
37780 vs 37785 vs 37765 vs 37766: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 37785Varicose vein surgery
- 37780 is for revision of a previously treated leg vein. 37785 addresses a varicose-vein cluster treated through a single incision.
- 37765Stab phlebectomy
- 37765 describes stab phlebectomy of 10–20 leg veins. Choose 37780 when the operative service is revision of a previously treated vein.
- 37766Stab phlebectomy
- 37766 describes stab phlebectomy of more than 20 leg veins. It is not the revision code for a previously treated vein.
37780 billing questions
When is 37780 reported instead of 37785?
Use 37780 for revision of a previously treated leg vein. Code 37785 describes treatment of a varicose-vein cluster through a single incision, rather than revision of a previously ligated vein.
What documentation supports reporting 37780?
The operative report should establish the prior vein treatment, the recurrent or residual problem, and the revision performed. Identify the affected leg and vein or varicosity addressed.
How is bilateral revision reported?
For bilateral surgery, report modifier 50. CMS pays the bilateral procedure at 150%.
What postoperative care is included?
The 90-day global 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 is barred for this code. Co-surgeons are paid only when supporting documentation is provided; team surgery is not permitted.
How does CMS handle multiple procedures in the same session?
The highest-valued procedure is paid in full, and other procedures are paid at 50% when performed in the same session.
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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