Billing code 33513: Coronary bypassMedicare rate & RVUs in Nevada
Reports coronary artery bypass surgery using venous conduits for four coronary targets, when the bypasses are performed with venous grafts only.
CMS doesn’t publish an office rate for 33513 in Nevada.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
On this page 9 sections
What 33513 covers
Code 33513 describes coronary artery bypass surgery using venous conduits to bypass four coronary targets. A cardiothoracic surgeon typically performs the operation in a hospital operating room, often using segments of the patient’s saphenous vein to route blood around obstructed coronary arteries. The operative report should identify the conduit type and the distal coronary targets; sequential grafting may require attention to the number of distal anastomoses rather than simply the number of harvested vein segments.
Select this code when the bypasses are venous-only. If arterial and venous conduits are both used, the arterial bypass code and the applicable venous add-on code describe that combination instead. Endoscopic vein harvesting may be reported separately with 33508 when performed and supported by the operative record. The code has a 90-day global period, including the day-before preoperative visit and related postoperative care. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Modifier 50 is inappropriate; an assistant at surgery may be paid, but co-surgeons and team surgery are not permitted.
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.
33513 in Nevada**
| Payment locality | Office | Facility |
|---|---|---|
| Nevada** | Unavailable | $2,244.11 |
How the 33513 rate is calculated
Each of 33513’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 · 33513
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 44.24Practice expense 13.97Malpractice 10.76
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 33513
33513 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 33513
Coronary bypass
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 090 | Major surgery: the day before, the day of, and 90 days after are included. |
| Multiple procedures | 2 | Standard reduction: highest-valued procedure at 100%, others at 50%. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 2 | Paid. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
| Split (54/55/56) | 0.09/0.84/0.07 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 33513
Coronary bypass
90-day global period ends
Dec 30, 2026
Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).
Visit on Oct 31, 2026
Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.
Pre-op dayGlobal period
What modifiers do to the payment
Modifier 51 · payment effect
With and without the modifier
33513 without 51 · national facility
$2,303.66
Coronary bypass
33513-51 · Second procedure: 50%
$1,151.83
When this isn’t the highest-valued procedure in the session, Medicare pays 50% of its fee schedule amount (the highest is paid at 100%).
33513 compared with similar codes
Compare codes
33513 vs 33512 vs 33514 vs 33521: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 33512Coronary bypass
- Use 33512 for three venous bypass targets; use 33513 when four targets are bypassed with venous grafts.
- 33514Coronary bypass
- Use 33514 for five venous bypass targets. The distinction from 33513 is the target count documented in the operative report.
- 33521CABG grafting
- Use 33521 with the applicable arterial bypass code when the operation includes four venous grafts plus arterial grafting; 33513 is for venous-only bypasses.
33513 billing questions
How is 33513 distinguished from 33512 or 33514?
Choose by the number of coronary targets bypassed with venous grafts: 33513 is for four, 33512 for three, and 33514 for five. Use the operative report’s target and anastomosis details.
Can 33513 be reported when an arterial graft is also used?
For a mixed arterial-and-venous bypass, report the applicable arterial bypass code with the venous add-on code for the number of venous grafts. Code 33513 describes venous-only bypasses.
Is vein harvesting included in 33513?
Endoscopic vein harvesting may be separately reported with 33508 when performed. The operative record should support the harvesting method.
Should modifier 50 be appended for bypasses on both sides of the heart?
No. Modifier 50 is not appropriate for 33513; code selection reflects the number of coronary bypass targets, not a bilateral service.
What postoperative care is included in the global period?
The 90-day global period includes the day-before preoperative visit and related postoperative care. The code also permits payment for an assistant at surgery, while co-surgeons and team surgery are not permitted.
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
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