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CPT code 35683: Composite bypass graft, three or more segments2026 Medicare rate & RVUs

Report this add-on when an arterial bypass uses a composite graft constructed from three or more segments, alongside the primary bypass procedure.

CMS RVU26DEffective Oct 1, 2026109 payment localities

Medicare pays $369.08 for 35683 nationally in a facility.

Medicare rate · 35683

Composite bypass graft, three or more segments

Office or facility?

Work RVUs
8.28
Total RVUs
11.05
Global days
ZZZ

National rate · 2026

$369.08

Facility setting, before claim adjustments.

See every locality for 35683 →Billed by an NP, PA or therapist? →

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

Your location

Medicare pays by the payment locality where the service is performed.

On this page 10 sections
  1. Medicare rate
  2. What 35683 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Related codes
  9. Billing questions
  10. Sources

What 35683 covers

This add-on describes the graft construction used during an arterial bypass when the composite graft comprises three or more segments. A vascular surgeon typically performs the bypass in an operating room, using the graft to route blood around an obstructed or diseased artery. The primary bypass code identifies the bypass procedure and its anatomic route; this code identifies the qualifying composite graft configuration.

Report it only with a primary bypass procedure, not as a stand-alone service. The operative report should support the bypass performed and document the graft construction, including the number of segments used. For example, a femoral-to-popliteal or femoral-to-tibial bypass may have a composite graft configuration; select the primary code for the documented route and use this add-on when the graft has three or more segments. CMS pays it within the primary procedure's global period.

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 35683 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

35683 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailable$335.74
AlaskaUnavailable$477.15
ArizonaUnavailable$358.25
ArkansasUnavailable$331.79
Atlanta, GAUnavailable$384.43
Austin, TXUnavailable$362.88
Bakersfield, CAUnavailable$348.89
Baltimore area, MDUnavailable$391.82
Beaumont, TXUnavailable$362.09
Brazoria, TXUnavailable$355.59

35683 rates by state

Office rate range in each state. Select a state to see its payment localities.

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Explore a state

Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

View every state and territory as a table
35683 office rate range by state
State / territoryOffice rate rangeLocalities
AKNo published base rate1
ALNo published base rate1
ARNo published base rate1
AZNo published base rate1
CANo published base rate29
CONo published base rate1
CTNo published base rate1
DCNo published base rate1
DENo published base rate1
FLNo published base rate3
GANo published base rate2
GUNo published base rate1
HINo published base rate1
IANo published base rate1
IDNo published base rate1
ILNo published base rate4
INNo published base rate1
KSNo published base rate1
KYNo published base rate1
LANo published base rate2
MANo published base rate2
MDNo published base rate3
MENo published base rate2
MINo published base rate2
MNNo published base rate1
MONo published base rate3
MSNo published base rate1
MTNo published base rate1
NCNo published base rate1
NDNo published base rate1
NENo published base rate1
NHNo published base rate1
NJNo published base rate2
NMNo published base rate1
NVNo published base rate1
NYNo published base rate5
OHNo published base rate1
OKNo published base rate1
ORNo published base rate2
PANo published base rate2
PRNo published base rate1
RINo published base rate1
SCNo published base rate1
SDNo published base rate1
TNNo published base rate1
TXNo published base rate8
UTNo published base rate1
VANo published base rate2
VINo published base rate1
VTNo published base rate1
WANo published base rate2
WINo published base rate1
WVNo published base rate1
WYNo published base rate1

How the 35683 rate is calculated

Each of 35683’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 · 35683

RVUs × geographic indexes × conversion factor

Office or facility?

Work8.28

8.28 RVUs× 1.000 GPCI

Practice expense0.66

0.66 RVUs× 1.000 GPCI

Malpractice2.11

2.11 RVUs× 1.000 GPCI

Adjusted RVUs

11.0500

Conversion factor

$33.4009

Medicare rate

$369.08

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

Payment rules and modifiers for 35683

The CMS indicators that decide how 35683 is paid alongside other services.

CMS payment indicators · 35683

Composite bypass graft, three or more segments

RuleCMS valueWhat it means
Global periodZZZAdd-on code: falls within the primary procedure’s global period.
Multiple procedures0No multiple-procedure reduction.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)0Not paid without supporting documentation.
Co-surgeons (62)1Permitted with supporting documentation.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.

35683 compared with similar codes

Compare codes · National

5 codes, side by side

Office or facility?

  • 35683

    Composite bypass graft, three or more segments8.28 wRVU

    Not priced

  • 35681

    Composite bypass graft, one vein, one prosthetic segment1.56 wRVU

    Not priced

  • 35682

    Composite bypass, two vein segments7.01 wRVU

    Not priced

  • 35656

    Arterial bypass, femoral to popliteal, non-vein19.96 wRVU

    Not priced

  • 35666

    Leg bypass, femoral to tibial/peroneal23.07 wRVU

    Not priced

How to choose

35681Composite bypass graftOne vein, one prosthetic segment
This composite graft code specifies prosthetic material combined with vein; 35683 identifies a graft made from three or more segments.
35682Composite bypassTwo vein segments
This code describes a composite graft using two veins. Use 35683 for the three-or-more-segment category.
35656Arterial bypassFemoral to popliteal, non-vein
35656 identifies a femoral-popliteal bypass using a non-vein graft; 35683 is an add-on for qualifying composite graft construction, not a bypass-route code.
35666Leg bypassFemoral to tibial/peroneal
35666 identifies a femoral-to-tibial or peroneal bypass using a non-vein graft; 35683 describes the qualifying composite graft configuration.

Codes related to 35683

Related codes aren’t interchangeable: bill the code that matches the service performed.

Codes related to 35683
CodeHow it relatesNational office range
Same family
35681Composite bypass graft, one vein, one prosthetic segmentComposite bypass graft category using prosthetic material and vein.No office rate
35682Composite bypass, two vein segmentsComposite bypass graft category using two veins.No office rate
Add-on codes
35656Arterial bypass, femoral to popliteal, non-veinFemoral-popliteal bypass code; 35683 may accompany it when the graft has three or more segments.No office rate
35666Leg bypass, femoral to tibial/peronealFemoral-to-tibial or peroneal bypass code; 35683 may accompany it when the graft has three or more segments.No office rate

35683 billing questions

Can 35683 be billed by itself?

No. It is an add-on code and must be reported with a primary bypass procedure.

How is 35683 different from 35682?

35683 is the composite graft category for three or more segments; 35682 describes a composite graft using two veins.

What should the operative report document?

Document the bypass route and the graft construction, including the number of segments supporting selection of the three-or-more-segment category.

Is this code reported once for each graft segment?

It identifies the three-or-more-segment composite graft category; it is not a per-segment code.

Which code identifies the bypass route?

The primary bypass code identifies the route, such as femoral-to-popliteal or femoral-to-tibial. Report 35683 as the add-on when the graft configuration meets its segment criterion.

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
RVUs for 35683PPRRVU2026_Oct_nonQPP.csv, line 4,400 (RVU26D)

Open CMS sourceHow we calculate rates

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