CPT code 35512: Arterial bypass, subclavian-to-brachial route2026 Medicare rate & RVUs in California
Reports surgical graft bypass from the subclavian artery to the brachial artery to restore blood flow in an ischemic upper extremity.
CMS doesn’t publish an office rate for 35512 in California.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
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On this page 9 sections
What 35512 covers
A vascular surgeon uses a graft to route blood from the subclavian artery to the brachial artery, bypassing an obstructed or diseased arterial segment. The operation is generally performed in a hospital operating room for upper-extremity arterial insufficiency when this inflow and outflow route is selected. The graft may use an appropriate conduit documented in the operative report.
Report 35512 when the bypass runs specifically from the subclavian artery to the brachial artery; the documented origin and destination distinguish it from other upper-extremity bypass codes. The operative note should identify the indication, bypass route, graft, and work performed. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures are performed in one session, the highest-valued is paid in full and other procedures at 50%. Bilateral reporting with modifier 50 is paid at 150%. Assistant-at-surgery payment may be made; 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 35512 pays more and less in California
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
29 of 29 payment localities
| Payment locality | Office | Facility |
|---|---|---|
| Bakersfield, CA | Unavailable | $1,045.71 |
| Chico, CA | Unavailable | $1,029.62 |
| El Centro, CA | Unavailable | $1,030.61 |
| Fresno, CA | Unavailable | $1,029.62 |
| Hanford, CA | Unavailable | $1,029.62 |
| Los Angeles, CA | Unavailable | $1,084.23 |
| Madera, CA | Unavailable | $1,029.62 |
| Marin County, CA | Unavailable | $1,112.72 |
| Merced, CA | Unavailable | $1,029.62 |
| Modesto, CA | Unavailable | $1,029.62 |
| Napa, CA | Unavailable | $1,086.52 |
| Oxnard, CA | Unavailable | $1,065.84 |
| Redding, CA | Unavailable | $1,029.62 |
| Rest of California | Unavailable | $1,029.62 |
| Riverside, CA | Unavailable | $1,093.50 |
| Sacramento, CA | Unavailable | $1,052.46 |
| Salinas, CA | Unavailable | $1,048.09 |
| San Benito County, CA | Unavailable | $1,143.57 |
| San Diego, CA | Unavailable | $1,052.95 |
| San Francisco, CA | Unavailable | $1,105.96 |
| San Luis Obispo, CA | Unavailable | $1,034.79 |
| Santa Clara County, CA | Unavailable | $1,115.90 |
| Santa Cruz, CA | Unavailable | $1,047.04 |
| Santa Maria, CA | Unavailable | $1,046.59 |
| Santa Rosa, CA | Unavailable | $1,055.60 |
| Stockton, CA | Unavailable | $1,029.62 |
| Vallejo, CA | Unavailable | $1,076.77 |
| Visalia, CA | Unavailable | $1,029.62 |
| Yuba City, CA | Unavailable | $1,029.62 |
How the 35512 rate is calculated
Each of 35512’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 · 35512
RVUs × geographic indexes × conversion factor
Work23.29
23.29 RVUs× 1.000 GPCI
Practice expense3.60
3.60 RVUs× 1.000 GPCI
Malpractice5.96
5.96 RVUs× 1.000 GPCI
Adjusted RVUs
32.8500
Conversion factor
$33.4009
Medicare rate
$1,097.22
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 35512
35512 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 35512
Arterial bypass, subclavian-to-brachial route
| 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 · 35512
Arterial bypass, subclavian-to-brachial route
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
35512 without 50 · national facility
$1,097.22
Arterial bypass, subclavian-to-brachial route
35512-50 · Bilateral: 150%
$1,645.83
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).
35512 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 35510Arterial bypassCarotid to brachial
- 35510 uses the carotid artery as inflow and the brachial artery as outflow. 35512 uses the subclavian artery as inflow.
- 35516Arterial bypassSubclavian to axillary
- Both use subclavian inflow, but 35516 ends at the axillary artery; 35512 ends at the brachial artery.
- 35522Arterial bypassAxillary to brachial
- 35522 describes an axillary-to-brachial route. Choose 35512 when the graft originates from the subclavian artery.
35512 billing questions
How do I distinguish 35512 from 35516?
35512 describes a subclavian-to-brachial route. Use 35516 when the bypass runs from the subclavian artery to the axillary artery.
What operative documentation supports 35512?
Document the bypass indication, the subclavian inflow and brachial outflow, the graft used, and the operative work performed.
Does the 90-day global period include postoperative visits?
Yes. The global period includes the day-before preoperative visit and 90 days of related postoperative care.
How is modifier 50 handled for bilateral bypass?
CMS pays bilateral reporting with modifier 50 at 150%. The operative documentation should support bypasses on both sides.
How does the multiple procedure reduction affect 35512?
For procedures performed in the same session, CMS pays the highest-valued procedure in full and other procedures at 50%.
Can an assistant or co-surgeon be reported?
Assistant-at-surgery payment may be made. Co-surgeon payment requires supporting documentation; team surgery is not permitted.
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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