No office rate
Use 33522 when the CABG includes arterial grafting and five venous grafts. 33523 represents six or more venous grafts.
On this page
CMS RVU26D · Effective 2026-10-01
33523 CABG grafting Medicare reimbursement rates in Michigan
This add-on represents six or more venous grafts during coronary bypass that also uses arterial grafting, reported with the arterial CABG primary code. Compare 33523 office and facility rates across CMS payment localities in Michigan.
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 33523 in Michigan?
Michigan has 2 payment localities in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the 2 payment areas shown below, using the same CMS release.
Office / nonfacility
No supported rate
Facility setting
$763.33–$838.69
2 of 2 localities have a supported rate.
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.
Cardiac surgery
About 33523: CABG with arterial and six-plus venous grafts
This add-on represents six or more venous grafts during coronary bypass that also uses arterial grafting, reported with the arterial CABG primary code.
During coronary artery bypass surgery, the surgeon uses venous conduits alongside arterial conduits to route blood around obstructed coronary arteries. This code represents the venous-graft portion when six or more venous grafts are used. It applies to CABG performed by a cardiac surgeon in an operating room. The primary arterial CABG code identifies the number of arterial grafts, while 33523 captures the venous-graft count.
Select the code from the operative report’s documented conduit and graft counts, rather than simply the number of coronary targets or distal connections. Report 33523 only with the appropriate primary arterial CABG code, 33533–33536, selected according to the arterial-graft count. The operative note should identify the conduits and support six or more venous grafts. CMS classifies 33523 as an add-on code: it is billed only with a primary procedure, and its payment falls within that procedure’s global period.
CMS billing rules for 33523
- Global period
- Add-on code: billed only together with a primary procedure and paid within that procedure's global period.
Where the value comes from
- Work RVU15.68 · 69%
- Practice expense (office) RVU3.22 · 14%
- Malpractice RVU3.75 · 17%
32
Medicare services in 2024 · #5617 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.
33523 compared with similar codes
Office rates for Michigan, from the same CMS release.
No office rate
33516 represents six or more venous grafts for CABG without arterial grafting; 33523 is for the arterial-and-venous combination.
No office rate
33536 represents the arterial-graft portion when four or more arterial grafts are used. 33523 represents six or more venous grafts and is reported as an add-on.
Compare 33523 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.
2 of 2 payment localities
Detroit →
Office / nonfacility
Unavailable
Facility
$838.69
Rest Of Michigan →
Office / nonfacility
Unavailable
Facility
$763.33
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33523 billing questions
Which primary CABG code is reported with 33523?
Report it with the appropriate arterial CABG code from 33533–33536. The primary code reflects the arterial-graft count.
Does six or more refer to the arterial or venous grafts?
It refers to the venous grafts. The arterial-graft count is represented by the primary CABG code.
Can 33523 be reported by itself?
No. It is an add-on code billed only with a primary procedure, and CMS payment is within that procedure’s global period.
How does 33523 differ from 33516?
33523 represents six or more venous grafts in CABG that also uses arterial grafting. 33516 is for six or more venous grafts without arterial grafting.
What documentation supports 33523?
The operative report should identify the arterial and venous conduits and document six or more venous grafts.
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.
3,9923351F,,Neg scrn dep symp by deptool,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
3,99333521,,Cabg artery-vein four,A,,12.28,2.45,NA,2.45,,3.03,17.76,17.76,0,ZZZ,0.00,0.00,0.00,0,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
3,99433522,,Cabg artery-vein five,A,,13.79,2.74,NA,2.74,,3.39,19.92,19.92,0,ZZZ,0.00,0.00,0.00,0,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
3,99533523,,Cabg art-vein six or more,A,,15.68,3.22,NA,3.22,,3.75,22.65,22.65,0,ZZZ,0.00,0.00,0.00,0,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
3,9963352F,,No sig dep symp by dep tool,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
3,99733530,,Coronary artery bypass/reop,A,,9.88,1.99,NA,1.99,,2.42,14.29,14.29,0,ZZZ,0.00,0.00,0.00,0,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
3,99833533,,Cabg arterial single,A,,32.91,11.59,NA,11.59,,8.13,52.63,52.63,0,090,0.09,0.82,0.09,2,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00