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CPT code 33512: Coronary bypass, three venous grafts2026 Medicare rate & RVUs

Reports coronary artery bypass using three venous grafts, typically for coronary artery disease when the operative record documents three vein grafts.

CMS RVU26DEffective Oct 1, 2026109 payment localities605 Medicare services in 2024

Medicare pays $2,258.23 for 33512 nationally in a facility.

Medicare rate · 33512

Coronary bypass, three venous grafts

Office or facility?

Work RVUs
42.88
Total RVUs
67.61
Global days
090

National rate · 2026

$2,258.23

Facility setting, before claim adjustments.

See every locality for 33512 →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 33512 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 33512 covers

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.

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 33512 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

33512 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailable$2,046.41
AlaskaUnavailable$2,847.43
ArizonaUnavailable$2,192.92
ArkansasUnavailable$2,020.89
Atlanta, GAUnavailable$2,340.75
Austin, TXUnavailable$2,248.57
Bakersfield, CAUnavailable$2,193.62
Baltimore area, MDUnavailable$2,399.07
Beaumont, TXUnavailable$2,190.57
Brazoria, TXUnavailable$2,188.12

33512 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
33512 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 33512 rate is calculated

Each of 33512’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 · 33512

RVUs × geographic indexes × conversion factor

Office or facility?

Work42.88

42.88 RVUs× 1.000 GPCI

Practice expense14.21

14.21 RVUs× 1.000 GPCI

Malpractice10.52

10.52 RVUs× 1.000 GPCI

Adjusted RVUs

67.6100

Conversion factor

$33.4009

Medicare rate

$2,258.23

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

Payment rules and modifiers for 33512

33512 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 33512

Coronary bypass, three venous grafts

RuleCMS valueWhat it means
Global period090Major surgery: the day before, the day of, and 90 days after are included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)2Paid.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.09/0.84/0.07Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 33512

Coronary bypass, three venous grafts

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.

  • 24Unrelated E/M visit by the same physician
  • 79Unrelated procedure (starts its own global period)
  • 58Staged, more extensive, or therapy procedure that was planned
  • 78Unplanned return to the operating room for a related complication
SurgeryVisit
Sep 23, 2026Jan 10, 2027

Pre-op dayGlobal period

What modifiers do to the payment

Modifier 51 · payment effect

With and without the modifier

33512 without 51 · national facility

$2,258.23

Coronary bypass, three venous grafts

33512-51 · Second procedure: 50%

$1,129.12

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%).

When to use modifier 51

33512 compared with similar codes

Compare codes · National

5 codes, side by side

Office or facility?

  • 33512

    Coronary bypass, three venous grafts42.88 wRVU

    Not priced

  • 33511

    Coronary bypass, two venous grafts37.49 wRVU

    Not priced

  • 33513

    Coronary bypass, four venous grafts44.24 wRVU

    Not priced

  • 33519

    CABG grafts, three venous grafts10.23 wRVU

    Not priced

  • 33533

    Arterial CABG, single arterial graft32.91 wRVU

    Not priced

How to choose

33511Coronary bypassTwo venous grafts
Use 33511 when the venous-only bypass uses two grafts; use 33512 when it uses three.
33513Coronary bypassFour venous grafts
Use 33513 for four venous grafts. The distinction from 33512 is the documented graft count.
33519CABG graftsThree venous grafts
33519 belongs to the combined arterial-and-venous CABG family for three venous grafts; 33512 is for a venous-only configuration.
33533Arterial CABGSingle arterial graft
33533 represents an arterial-only bypass configuration with one arterial graft, rather than three venous grafts.

Codes related to 33512

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

Codes related to 33512
CodeHow it relatesNational office range
Same family
33511Coronary bypass, two venous graftsVenous-only coronary bypass configuration with two grafts.No office rate
33513Coronary bypass, four venous graftsVenous-only coronary bypass configuration with four grafts.No office rate
33516Coronary bypass, six or more vein graftsVenous-only coronary bypass configuration with six or more grafts.No office rate
Often billed with
33508Vein harvest, endoscopic techniqueEndoscopic vein harvesting may accompany CABG when that harvest method is performed.No office rate
Used instead
33533Arterial CABG, single arterial graftUsed for an arterial-only bypass configuration with one arterial graft.No office rate

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 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 33512PPRRVU2026_Oct_nonQPP.csv, line 3,985 (RVU26D)

Open CMS sourceHow we calculate rates

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