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CPT code 77425: Intraoperative radiation, electron beam2026 Medicare rate & RVUs

Identifies electron-beam radiation delivered to an operative treatment area during surgery, rather than routine external-beam treatment at separate visits.

CMS RVU26DEffective Oct 1, 2026109 payment localities

Medicare rate · 77425

Intraoperative radiation, electron beam

Office or facility?

Work RVUs
0
Total RVUs
0.00
Global days
XXX

National rate · 2026

—

Not priced in the facility setting.

See every locality for 77425 →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 77425 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 77425 covers

77425 identifies electron-beam radiation delivered intraoperatively to a surgical treatment area. The radiation oncology team coordinates delivery with the surgeon while the operative site is accessible, commonly after tumor removal. The treatment occurs during the surgical episode, rather than as routine external-beam treatments at separate visits. The code represents radiation delivery, not the cancer operation itself. It is used in cancer treatment when radiation is directed to the operative site.

Medicare assigns status X: the service is excluded from physician fee schedule payment because it is not a physician service under the Medicare statute. When covered, it is paid under another fee schedule or payment system. Report it for the intraoperative electron delivery, distinct from the operative procedure.

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 77425 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

77425 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailableUnavailable
AlaskaUnavailableUnavailable
ArizonaUnavailableUnavailable
ArkansasUnavailableUnavailable
Atlanta, GAUnavailableUnavailable
Austin, TXUnavailableUnavailable
Bakersfield, CAUnavailableUnavailable
Baltimore area, MDUnavailableUnavailable
Beaumont, TXUnavailableUnavailable
Brazoria, TXUnavailableUnavailable

77425 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
77425 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 77425 rate is calculated

Each of 77425’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 · 77425

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.00

0.00 RVUs× 1.000 GPCI

Practice expense0.00

0.00 RVUs× 1.000 GPCI

Malpractice0.00

0.00 RVUs× 1.000 GPCI

Adjusted RVUs

0.0000

Conversion factor

$33.4009

Medicare rate

$0.00

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

Payment rules and modifiers for 77425

77425 has no global surgery period, no multiple-procedure, bilateral or assistant-at-surgery adjustment, and no professional/technical split. What changes the payment is where the service happens: the place of service on the claim decides whether Medicare pays the office or the facility rate.

Place of service · 77425

Which rate does Medicare pay?

The POS code on the claim line (CMS-1500 box 24B).

POS 11 · non-facility rate · national

—

77425 isn’t priced in this setting.

77425 compared with similar codes

Compare codes · National

4 codes, side by side

Office or facility?

  • 77425

    Intraoperative radiation, electron beam0 wRVU

    Not priced

  • 77424

    Intraoperative radiation, X-ray delivery0 wRVU

    Not priced

  • 77402

    Radiation delivery, level 10 wRVU

    $82.17

  • 77412

    Radiation delivery, complex treatment0 wRVU

    $443.56

How to choose

77424Intraoperative radiationX-ray delivery
Both are for radiation delivered during surgery. Choose 77425 for electron-beam delivery and 77424 for x-ray delivery.
77402Radiation deliveryLevel 1
77402 describes level-based external-beam treatment delivery, not electron radiation delivered intraoperatively.
77412Radiation deliveryComplex treatment
77412 describes a higher-level external-beam treatment delivery; 77425 identifies intraoperative electron delivery.

Codes related to 77425

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

Codes related to 77425
CodeHow it relatesNational office range
Used instead
77424Intraoperative radiation, X-ray deliveryIntraoperative radiation delivery using x-rays rather than electrons.No office rate
Often billed with
77469IORT management, during surgeryIntraoperative radiation treatment management associated with delivery.No office rate

77425 billing questions

How does 77425 differ from 77424?

Both describe intraoperative radiation delivery. 77425 is for electron-beam delivery; 77424 is for delivery using x-rays.

Is 77425 paid under the Medicare physician fee schedule?

No. Its status X means the physician fee schedule never pays it. When covered, payment is under another fee schedule or payment system.

Does 77425 represent the surgery as well as the radiation?

No. It identifies intraoperative electron radiation delivery, not the surgical procedure.

Can 77425 describe routine external-beam treatment?

No. 77425 identifies intraoperative electron delivery; codes such as 77402 and 77412 describe level-based external-beam treatment delivery.

What should the record support?

Document the intraoperative electron treatment delivered and its relationship to the operative treatment area, distinguishing the radiation delivery from the surgery.

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

Open CMS sourceHow we calculate rates

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