Use 33511 when the venous-only bypass uses two grafts; use 33512 when it uses three.
On this page
CMS RVU26D · Effective 2026-10-01
33512 Coronary bypass Medicare reimbursement rates in Wisconsin
Reports coronary artery bypass using three venous grafts, typically for coronary artery disease when the operative record documents three vein grafts. Compare 33512 office and facility rates across CMS payment localities in Wisconsin.
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 33512 in Wisconsin?
Wisconsin 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
$1995.15
1 of 1 localities have a supported rate.
Payment area: Wisconsin
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.
Cardiac surgery
About 33512: Three venous coronary bypass grafts
Reports coronary artery bypass using three venous grafts, typically for coronary artery disease when the operative record documents three vein grafts.
A cardiothoracic surgeon uses venous conduits, commonly harvested from the leg, to route blood around obstructed coronary arteries. This service is generally performed in a hospital operating room as surgical treatment for coronary artery disease. The code represents a bypass configuration using three venous grafts; it is not selected simply because three coronary arteries have disease.
Choose the code from the graft details in the operative report. When arterial and venous grafts are combined, use the combination CABG coding family rather than this venous-only code. The major-surgery global period includes the day-before preoperative visit and 90 days of related postoperative care. For multiple procedures in one session, the highest-valued procedure is paid in full and others at 50%. Modifier 50 is inappropriate. An assistant at surgery may be paid; co-surgeons and team surgery are not permitted.
CMS billing rules for 33512
- 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 adjustment does not apply; the descriptor or anatomy makes modifier 50 inappropriate.
- Assistant at surgery
- Assistant at surgery may be paid.
- Co-surgeons
- Co-surgeons not permitted.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU42.88 · 63%
- Practice expense (office) RVU14.21 · 21%
- Malpractice RVU10.52 · 16%
605
Medicare services in 2024 · #3386 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.
33512 compared with similar codes
Office rates for Wisconsin, from the same CMS release.
Use 33513 for four venous grafts. The distinction from 33512 is the documented graft count.
33519 belongs to the combined arterial-and-venous CABG family for three venous grafts; 33512 is for a venous-only configuration.
33533 represents an arterial-only bypass configuration with one arterial graft, rather than three venous grafts.
Compare 33512 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
Wisconsin →
Office / nonfacility
Unavailable
Facility
$1995.15
Need rates for a whole code list?
Fee-sheet and API access are in early access. Tell us which codes and locations your team needs.
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 33512 in Wisconsin.
PPRRVU2026_Oct_nonQPP.csv
3,985
- Code
- 33512
- Physician work
- 42.88
- Practice expense
- 14.21
- Malpractice
- 10.52
GPCI2026.csv
111
- Locality
- Wisconsin
- Physician work
- 1.000
- Practice expense
- 0.958
- Malpractice
- 0.308
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 42.88 | × 1.000 | 42.8800 |
| Practice expense | 14.21 | × 0.958 | 13.6132 |
| Malpractice | 10.52 | × 0.308 | 3.2402 |
| Total RVUs | 59.7333 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Wisconsin$1995.15
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 42.88 | 1 |
| Practice expense | 14.21 | 0.958 |
| Malpractice | 10.52 | 0.308 |
(42.88 × 1 + 14.21 × 0.958 + 10.52 × 0.308) × $33.4009 = $1995.15
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.
33512 billing questions
How is this code distinguished from the two- or four-graft codes?
Use the operative report to establish the number of venous grafts. This code represents three; 33511 represents two and 33513 represents four.
Does three-vessel coronary disease automatically support this code?
No. Code selection follows the venous graft configuration documented for the operation, not the number of diseased coronary vessels.
What if arterial and venous grafts are both used?
Use the CABG combination family for a procedure that includes both arterial and venous grafts, rather than reporting this venous-only code for the combined configuration.
Can modifier 50 be appended?
No. The CMS bilateral adjustment does not apply to this code, and modifier 50 is inappropriate for its bypass configuration.
How does the global period affect related postoperative care?
The 90-day major-surgery global period includes the day-before preoperative visit and 90 days of related postoperative care.
Can an assistant or co-surgeon be reported?
An assistant at surgery may be paid. CMS does not permit co-surgeons or team surgery for this code.
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.
