Billing code 35693: Arterial transpositionMedicare rate & RVUs in Massachusetts
Open subclavian artery transposition reroutes the native artery to improve blood flow and is reported for the documented subclavian transposition performed.
CMS doesn’t publish an office rate for 35693 in Massachusetts.
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 35693 covers
A vascular surgeon mobilizes and reroutes the patient’s subclavian artery, reconnecting it at a new site to redirect arterial flow. The operation is generally performed through an open approach in an operating room; the operative report should identify the artery’s original location, its new connection, and the reason for the reconstruction. The exact route matters because nearby transposition codes specify particular origin-to-destination relationships.
Report this code when the operative service is the subclavian artery transposition represented by this code, rather than a bypass using a graft or a separately specified transposition. Documentation should establish the involved artery, the transposition performed, and the reconstructed anatomy. CMS assigns a 90-day major-surgery global period, including the day-before preoperative visit and related postoperative care during that period. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Bilateral reporting with modifier 50 is paid at 150%. An assistant at surgery may be paid; 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 35693 pays more and less in Massachusetts
| Payment locality | Office | Facility |
|---|---|---|
| Metropolitan Boston | Unavailable | $798.36 |
| Rest Of Massachusetts | Unavailable | $755.84 |
How the 35693 rate is calculated
Each of 35693’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 · 35693
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 15.34Practice expense 3.73Malpractice 3.91
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 35693
35693 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 35693
Arterial transposition
| 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 · 35693
Arterial transposition
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
35693 without 50 · national facility
$767.55
Arterial transposition
35693-50 · Bilateral: 150%
$1,151.33
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).
35693 compared with similar codes
Compare codes
35693 vs 35694 vs 35695 vs 35645: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 35694Artery transposition
- This code represents subclavian artery transposition without naming the carotid as its destination. Code 35694 is specifically for a subclavian-to-carotid transposition.
- 35695Arterial transposition
- Code 35695 describes moving the carotid artery to the subclavian artery. This code is for a subclavian artery transposition, so confirm the direction from the operative report.
- 35645Arterial bypass
- Code 35645 is a subclavian-to-vertebral bypass. A bypass constructs a route between vessels; a transposition reroutes and reconnects the native subclavian artery.
35693 billing questions
How does this code differ from 35694?
Code 35694 identifies a subclavian-to-carotid transposition. Use the code that matches the artery’s documented new connection; do not infer that destination from the general subclavian transposition wording alone.
How does this differ from a subclavian-vertebral bypass?
A transposition reroutes and reconnects the native artery. Code 35645 describes a bypass between the subclavian and vertebral arteries, so the operative report should establish whether a bypass was constructed.
What documentation supports reporting this code?
The operative report should identify the subclavian artery, describe its mobilization and new anastomosis or implantation site, and explain the resulting arterial reconstruction.
How is the bilateral service reported?
CMS lists this as a bilateral procedure; modifier 50 is paid at 150%. The record should support transposition on both sides.
Can an assistant or co-surgeon be reported?
An assistant at surgery may be paid. Co-surgeons are paid only with supporting documentation, and team surgery is not permitted under the listed CMS rules.
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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