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Billing code 33530: CABG reoperationMedicare rate & RVUs

Identifies reoperative work during repeat coronary bypass surgery performed more than one month after the original operation, alongside the primary CABG code.

CMS RVU26DEffective Oct 1, 2026109 payment localities4.7K Medicare services in 2024

Medicare pays $477.30 for 33530 nationally in a facility.

Medicare rate · 33530

CABG reoperation

Work RVUs
9.88
Total RVUs
14.29
Global days
ZZZ

National rate · 2026

$477.30

Facility setting, before claim adjustments.

See every locality for 33530 →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.

On this page 10 sections
  1. Medicare rate
  2. What 33530 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 33530 covers

This add-on identifies reoperative work during a repeat coronary artery bypass procedure after an earlier operation. A cardiothoracic surgeon may perform the current bypass in a hospital operating room when coronary disease or graft problems call for another surgical revascularization. The code distinguishes a qualifying reoperation from a first-time CABG; it does not describe the number or type of grafts used.

Report 33530 with the primary CABG code that describes the current procedure and graft configuration. The operative report should establish that this is a reoperation and document the date or timing of the original operation, showing that it occurred more than one month earlier. CMS classifies 33530 as an add-on: it is not billed alone, and its payment is tied to the primary procedure’s global period.

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 33530 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

33530 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailable$433.91
Alaska*Unavailable$610.33
ArizonaUnavailable$463.60
ArkansasUnavailable$428.72
AtlantaUnavailable$495.60
AustinUnavailable$472.60
BakersfieldUnavailable$458.35
Baltimore/Surr. CntysUnavailable$506.59
BeaumontUnavailable$465.58
BrazoriaUnavailable$461.56

33530 rates by state

Office rate range in each state. Select a state to see its payment localities.

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

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
33530 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 33530 rate is calculated

Each of 33530’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 · 33530

RVUs × geographic indexes × conversion factor

Work9.88

9.88 RVUs× 1.000 GPCI

Practice expense1.99

1.99 RVUs× 1.000 GPCI

Malpractice2.42

2.42 RVUs× 1.000 GPCI

Adjusted RVUs

14.2900

Conversion factor

$33.4009

Medicare rate

$477.30

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

Payment rules and modifiers for 33530

The CMS indicators that decide how 33530 is paid alongside other services.

CMS payment indicators · 33530

CABG reoperation

RuleCMS valueWhat it means
Global periodZZZAdd-on code: falls within the primary procedure’s global period.
Multiple procedures0No multiple-procedure reduction.
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.

What modifiers do to the payment

Modifier 80 · payment effect

With and without the modifier

33530 without 80 · national facility

$477.30

CABG reoperation

33530-80 · Assistant: 16%

$76.37

A physician assistant at surgery is paid 16% of the surgeon’s fee schedule amount.

When to use modifier 80

33530 compared with similar codes

Compare codes · National

4 codes, side by side

  • 33530

    CABG reoperation9.88 wRVU

    Not priced

  • 33510

    Coronary bypass34.11 wRVU

    Not priced

  • 33517

    Combined CABG3.52 wRVU

    Not priced

  • 33533

    Arterial CABG32.91 wRVU

    Not priced

How to choose

33510Coronary bypass
33510 describes CABG using a single venous graft. Use it for the primary procedure; 33530 is an add-on for qualifying reoperative work.
33517Combined CABG
33517 describes CABG using both arterial and venous grafts. It reports the primary graft configuration, while 33530 identifies the qualifying reoperation.
33533Arterial CABG
33533 describes CABG using a single arterial graft. It is a primary procedure code, unlike 33530, which is reported with a primary CABG code.

Codes related to 33530

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

Codes related to 33530
CodeHow it relatesNational office range
Primary code
33510Coronary bypassPrimary code for single venous-graft CABG; report with 33530 when the reoperation criteria are met.No office rate
33517Combined CABGPrimary code for CABG using arterial and venous grafts; may be paired with 33530.No office rate
33533Arterial CABGPrimary code for single arterial-graft CABG; may be paired with 33530.No office rate

33530 billing questions

Can 33530 be billed by itself?

No. Report it only with the primary code for the current coronary bypass procedure.

What timing qualifies for this code?

The reoperation must occur more than one month after the original operation. Document the prior operation and its timing in the current operative record.

Does 33530 identify the number or type of bypass grafts?

No. The primary CABG code identifies the graft configuration and count; 33530 identifies the qualifying reoperative circumstance.

Is a history of prior heart surgery enough to report 33530?

No. The current service must be a reoperation for coronary artery bypass, and the record should support that reoperative service and the required interval.

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 33530PPRRVU2026_Oct_nonQPP.csv, line 3,997 (RVU26D)

Open CMS sourceHow we calculate rates

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