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35681 Composite byp grft pros&vein

What 35681 is

CMS fee schedule short descriptor: Composite byp grft pros&vein.

Full CPT long descriptions are licensed by the American Medical Association and are not published on this site; the short descriptor above is the one CMS prints in its own fee schedule file. See About CPT.

Medicare payment for 35681 (CY2026)

Work RVUPractice expense RVUMalpractice RVUTotalMedicare rate
Non-facility (office)1.560.190.402.15$71.81
Facility (hospital, ASC)1.560.190.402.15$71.81

National rates: total RVUs x the CY2026 conversion factor of 33.4009 (non-QP), before geographic adjustment. Actual Medicare payment is 80% of the rate shown after the deductible; the patient or secondary payer owes the 20% coinsurance.


Status: Active - payable under the Physician Fee Schedule. Global period: Add-on code: global period of the primary procedure applies.

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Medically Unlikely Edit (MUE)

Medicare caps 35681 at 1 unit per date of service for practitioner claims (MAI 3 - date of service edit (clinical): units above the MUE may pay with documentation on appeal), rationale: Clinical: Data. Units above the cap are denied unless the edit's adjudication rules allow an appeal with documentation.

Billed with 35681? These codes are bundled into it

35681 is a Column 1 code in 7 active NCCI PTP edits. When one of these Column 2 codes is reported on the same date of service, it is denied as bundled - unless the edit's modifier indicator is 1 and documentation supports a distinct service with an NCCI-associated modifier.

Column 2 codeShort descriptionModifier indicator
35702Expl n/flwd surg uxtr art1 - modifier may bypassCheck pair
35703Expl n/flwd surg lxtr art1 - modifier may bypassCheck pair
36002Pseudoaneurysm injection trt1 - modifier may bypassCheck pair
36591Draw blood off venous device0 - no modifier bypassCheck pair
36592Collect blood from picc0 - no modifier bypassCheck pair
61650Evasc prlng admn rx agnt 1st1 - modifier may bypassCheck pair
96523Irrig drug delivery device0 - no modifier bypassCheck pair

35681 is bundled into these codes

35681 appears as a Column 2 code in 14 active edits. Reported with one of these Column 1 codes on the same date of service, 35681 is the code that denies.

Column 1 codeShort descriptionModifier indicator
33510Cabg vein single1Check pair
33511Cabg vein two1Check pair
33512Cabg vein three1Check pair
33513Cabg vein four1Check pair
33514Cabg vein five1Check pair
33516Cabg vein six or more1Check pair
33517Cabg artery-vein single1Check pair
33518Cabg artery-vein two1Check pair
33519Cabg artery-vein three1Check pair
33521Cabg artery-vein four1Check pair
33522Cabg artery-vein five1Check pair
33523Cabg art-vein six or more1Check pair
35682Composite byp grft 2 veins0Check pair
35683Composite byp grft 3/> segmt0Check pair

Data: CMS CY2026 Physician Fee Schedule RVU file (October release, RVU26D) and Medicare NCCI PTP practitioner edits v32.3 (2026 Q4). Verify against the official files before billing or contracting decisions.