No office rate
Both codes describe a femoral-to-popliteal bypass, but 35556 is for a vein conduit; 35656 is for a conduit other than vein.
On this page
CMS RVU26D · Effective 2026-10-01
35556 Arterial bypass Medicare reimbursement rates in Rhode Island
Reports a lower-extremity arterial bypass using a vein conduit from the femoral artery to the popliteal artery to restore blood flow around an obstruction. Compare 35556 office and facility rates across CMS payment localities in Rhode Island.
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
What does Medicare pay for 35556 in Rhode Island?
Rhode Island has 1 payment locality in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the payment area shown below, using the same CMS release.
Office / nonfacility
No supported rate
Facility setting
$1260.16
1 of 1 localities have a supported rate.
Payment area: Rhode Island
One mapped payment locality.
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Vascular surgery
About 35556: Femoral-popliteal vein bypass
Reports a lower-extremity arterial bypass using a vein conduit from the femoral artery to the popliteal artery to restore blood flow around an obstruction.
A vascular surgeon uses a vein conduit to route blood from the femoral artery to the popliteal artery, bypassing an obstructed segment. The operation is commonly performed in a hospital operating room for lower-extremity arterial occlusive disease when revascularization is needed. A harvested saphenous vein is a familiar conduit example. This code distinguishes a vein-graft bypass from a bypass using a non-vein graft and from an in-situ vein bypass.
Select the code based on the documented conduit, bypass endpoints, and operative technique. The report should identify the femoral inflow, popliteal outflow, vein graft, and bypass performed. CMS assigns major surgery a 90-day global period, including the day-before preoperative visit and related postoperative care through day 90. For multiple procedures in one session, the highest-valued procedure is paid in full and others at 50%. Bilateral reporting with modifier 50 is paid at 150%. Assistant-at-surgery payment may be allowed; co-surgeon payment requires supporting documentation, and team surgery is not permitted.
CMS billing rules for 35556
- Global period
- Major surgery with a 90-day global period: the day-before preoperative visit and 90 days of related postoperative care are included.
- Multiple procedures
- Standard multiple procedure reduction: the highest-valued procedure is paid in full and others at 50% when performed in the same session.
- Bilateral procedures
- Bilateral procedure with modifier 50 is paid at 150%.
- Assistant at surgery
- Assistant at surgery may be paid.
- Co-surgeons
- Co-surgeons paid only with supporting documentation.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU26.08 · 69%
- Practice expense (office) RVU5.08 · 13%
- Malpractice RVU6.62 · 18%
2K
Medicare services in 2024 · #2470 by national volume
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.
35556 compared with similar codes
Office rates for Rhode Island, from the same CMS release.
No office rate
Both use a vein for a femoral-to-popliteal bypass. Choose 35583 when the vein is used in situ rather than as a vein graft.
No office rate
This code also describes a vein bypass, but its distal target is an anterior tibial, posterior tibial, or peroneal artery rather than the popliteal artery.
Compare 35556 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
1 of 1 payment localities
Rhode Island →
Office / nonfacility
Unavailable
Facility
$1260.16
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How this local rate is calculated
Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for 35556 in Rhode Island.
PPRRVU2026_Oct_nonQPP.csv
4,357
- Code
- 35556
- Physician work
- 26.08
- Practice expense
- 5.08
- Malpractice
- 6.62
GPCI2026.csv
92
- Locality
- Rhode Island
- Physician work
- 1.019
- Practice expense
- 1.033
- Malpractice
- 0.892
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 26.08 | × 1.019 | 26.5755 |
| Practice expense | 5.08 | × 1.033 | 5.2476 |
| Malpractice | 6.62 | × 0.892 | 5.9050 |
| Total RVUs | 37.7282 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Rhode Island$1260.16
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 26.08 | 1.019 |
| Practice expense | 5.08 | 1.033 |
| Malpractice | 6.62 | 0.892 |
(26.08 × 1.019 + 5.08 × 1.033 + 6.62 × 0.892) × $33.4009 = $1260.16
The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.
35556 billing questions
How does this differ from an in-situ vein bypass?
This code describes a femoral-to-popliteal bypass using a vein graft. Use the in-situ bypass code when the vein remains in place and is used as the bypass conduit.
When would a non-vein bypass code be considered?
Use the corresponding non-vein graft code when the operative report documents a conduit other than vein for the femoral-to-popliteal bypass.
What documentation supports reporting this code?
Document the femoral inflow site, popliteal outflow site, vein conduit, and bypass technique. The operative report should make the route and graft material clear.
How is this handled when both legs are treated?
For a bilateral procedure, report modifier 50; CMS pays the bilateral procedure at 150%.
What payment rules apply when other procedures are performed in the same session?
Under the standard multiple-procedure reduction, the highest-valued procedure is paid in full and other procedures are paid at 50%. The 90-day global period includes related postoperative care through day 90 and the day-before preoperative visit.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
4,35435538,,Art byp grft aortobi-iliac,A,,45.85,5.82,NA,5.82,,11.75,63.42,63.42,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,35535539,,Art byp grft aortofemoral,A,,43.01,5.52,NA,5.52,,11.01,59.54,59.54,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,35635540,,Art byp grft aortbifemoral,A,,48.10,5.93,NA,5.93,,12.33,66.36,66.36,0,090,0.09,0.84,0.07,2,1,1,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,35735556,,Art byp grft fem-popliteal,A,,26.08,5.08,NA,5.08,,6.62,37.78,37.78,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,35835558,,Art byp grft fem-femoral,A,,22.55,4.80,NA,4.80,,5.68,33.03,33.03,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,3593555F,,Pt inr measurement performed,I,,0.00,0.00,,0.00,,0.00,0.00,0.00,9,XXX,0.00,0.00,0.00,9,9,9,9,9,9,,33.4009,09,0,99,0.00,0.00,0.00
4,36035560,,Art byp grft aortorenal,A,,33.18,4.70,NA,4.70,,8.50,46.38,46.38,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
8912502,PA,01,METROPOLITAN PHILADELPHIA,1.018,1.041,1.193
9012502,PA,99,REST OF PENNSYLVANIA,1.000,0.918,0.945
9109202,PR,20,PUERTO RICO,1.000,1.011,0.985
9214412,RI,01,RHODE ISLAND,1.019,1.033,0.892
9311202,SC,01,SOUTH CAROLINA,1.000,0.924,0.850
9403402,SD,02,SOUTH DAKOTA**,1.000,1.000,0.336
9510312,TN,35,TENNESSEE,1.000,0.909,0.537