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CPT code 77402: Radiation delivery, level 12026 Medicare rate & RVUs in Wisconsin

Report level 1 radiation treatment delivery for a simple external-beam treatment session, with the technical service distinguished from separately coded interpretation.

CMS RVU26DEffective Oct 1, 2026One payment locality

In Wisconsin, Medicare pays $78.28 for 77402 in the office.

$78.28Office (non-facility)
Not available in this settingHospital or facility
−4.7%vs the national office rate ($82.17)

Check a contract rate as a % of Medicare · 77402 nationwide

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

We’ll open 77402 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Wisconsin
  2. What 77402 covers
  3. Compared with other areas
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Related codes
  8. Rate history
  9. Where it applies
  10. Billing questions
  11. Sources

What 77402 covers

This code represents the technical delivery of a simple external-beam radiation treatment session. Radiation therapists typically operate the treatment equipment in a radiation oncology department, following the radiation oncologist’s prescription and treatment plan. The level reflects delivery complexity; the diagnosis or body site alone does not determine the level. The session record should show the treatment delivered and the technical details supporting level 1 rather than a higher-complexity delivery code.

Report the code for the qualifying delivery session, not separately for each beam or port. Documentation should support the delivered treatment and its level. CMS classifies 77402 as technical-component-only: a separate code covers interpretation, so this code does not represent the physician’s interpretive service. CMS assigns no physician work RVU to the delivery code; its payment valuation reflects practice expense and malpractice components.

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.

How Wisconsin compares for 77402

Across 109 of 109 payment localities, the office rate for 77402 runs from $70.35 in Arkansas to $117.88 in San Benito County, CA. Wisconsin pays $78.28. The RVUs are the same everywhere; the geographic indexes change the dollars.

77402 in Wisconsin vs other payment areas
  1. Wisconsin · this page$78.28
  2. Los Angeles, CA · California$96.86+$18.58
  3. Washington, DC area · District of Columbia$96.75+$18.47
  4. Miami, FL · Florida$86.53+$8.25
  5. Chicago, IL · Illinois$83.44+$5.16
  6. Manhattan, NY · New York$95.76+$17.48
  7. Alaska · Alaska$87.16+$8.88

Other areas in Wisconsin first, then benchmark localities. Bars start at $0.

Every other payment area

77402 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$71.69—
ArkansasArkansas$70.35—
ArizonaArizona$79.54—
Bakersfield, CACalifornia$89.73—
Chico, CACalifornia$89.68—
El Centro, CACalifornia$89.68—
Fresno, CACalifornia$89.68—
Hanford, CACalifornia$89.68—

77402 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.

$70.35

$103.78

Color shows the midpoint of each state’s locality range.

View every state and territory as a table
77402 office rate range by state
State / territoryOffice rate rangeLocalities
AK$87.161
AL$71.691
AR$70.351
AZ$79.541
CA$89.68–$117.8829
CO$87.241
CT$88.581
DC$96.751
DE$81.121
FL$78.92–$86.533
GA$73.49–$83.602
GU$93.051
HI$93.051
IA$74.841
ID$75.291
IL$75.45–$84.884
IN$75.871
KS$74.011
KY$73.061
LA$72.77–$77.452
MA$86.35–$97.902
MD$83.09–$96.753
ME$75.39–$81.192
MI$75.16–$79.772
MN$84.061
MO$70.90–$78.263
MS$70.661
MT$82.161
NC$76.461
ND$81.771
NE$75.481
NH$85.421
NJ$89.73–$95.252
NM$75.541
NV$82.141
NY$77.89–$98.145
OH$75.081
OK$73.301
OR$81.64–$91.042
PA$75.45–$85.642
PR$83.051
RI$84.781
SC$75.871
SD$81.721
TN$74.441
TX$74.78–$86.828
UT$77.211
VA$80.58–$96.752
VI$83.051
VT$81.021
WA$86.33–$100.542
WI$78.281
WV$71.781
WY$81.991

See 77402 in every payment locality

How the 77402 rate is calculated

Each of 77402’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 · 77402

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.00

0.00 RVUs× 1.000 GPCI

Practice expense2.44

2.44 RVUs× 1.000 GPCI

Malpractice0.02

0.02 RVUs× 1.000 GPCI

Adjusted RVUs

2.4600

Conversion factor

$33.4009

Medicare rate

$82.17

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

The exact Wisconsin inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

9,097

Code
77402
Physician work
0.00
Practice expense
2.44
Malpractice
0.02

GPCI2026.csv

111

Locality
Wisconsin
Physician work
1.000
Practice expense
0.958
Malpractice
0.308
Office calculation for 77402 in Wisconsin
ComponentRVULocality factorAdjusted
Physician work0.00× 1.0000.0000
Practice expense2.44× 0.9582.3375
Malpractice0.02× 0.3080.0062
Total RVUs2.3437
Conversion factor× 33.4009

Office rate, Wisconsin$78.28

Office: (0 × 1 + 2.44 × 0.958 + 0.02 × 0.308) × $33.4009 = $78.28

Open 77402 in the RVU calculator

Payment rules and modifiers for 77402

The CMS indicators that decide how 77402 is paid alongside other services.

CMS payment indicators · 77402

Radiation delivery, level 1

RuleCMS valueWhat it means
Global periodXXXThe global surgery concept doesn’t apply.
Multiple procedures0No multiple-procedure reduction.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical3Technical component only.

Codes related to 77402

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

Codes related to 77402
CodeHow it relatesOffice range, Wisconsin
Same family
77407Radiation delivery, level 2Higher delivery level in the same radiation treatment delivery series.$295.64
77412Radiation delivery, complex treatmentHigher delivery level in the same radiation treatment delivery series.$423.41
Often billed with
77417Port imaging, treatment-field verificationPort imaging may be separately reported when performed with a treatment delivery service.No office rate

How 77402 has changed in Wisconsin

77402 · Office / nonfacility

$78.28

Effective 2026-10-01

A rate is unavailable in one of these releases, so a change cannot be calculated.

It is unchanged from the immediately preceding available release, effective 2026-07-01.

Base rate by release · bars start at $0 · select a bar to compare

One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.

What changed, release by release

  1. January 1, 2026

    RVU26A

    No ratechanged to$78.28

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2015

    RVU15A

    $134.04changed toNo rate

    Held through RVU15B, RVU15C, RVU15D, RVU16A, RVU16B, RVU16C, RVU16D, RVU17A, RVU17B, RVU17C, RVU17D, RVU18AR1, RVU18B, RVU18C, RVU18D, RVU19A, RVU19B, RVU19C, RVU19D, RVU20A, RVU20B, RVU20C, RVU20D, RVU21A, RVU21B, RVU21C, RVU21D, RVU22A, RVU22B, RVU22C, RVU22D, RVU23A, RVU23B, RVU23C, RVU23D, RVU24A, RVU24AR, RVU24B, RVU24C, RVU24D, RVU25A, RVU25B, RVU25C, RVU25D.

  3. January 1, 2014

    RVU14A

    $148.80changed to$134.04

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 4.55 changed to 3.90
    • Practice expense GPCI 0.960 changed to 0.958
    • Malpractice GPCI 0.547 changed to 0.557

    Held through RVU14B, RVU14C, RVU14D.

  4. October 1, 2013

    RVU13D

    No ratechanged to$148.80

  5. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$78.28Not available in this settingRVU26D
2026-07-01$78.28Not available in this settingRVU26C
2026-04-01$78.28Not available in this settingRVU26B
2026-01-01$78.28Not available in this settingRVU26A
2025-10-01Separate payment rules applySeparate payment rules applyRVU25D
2025-07-01Separate payment rules applySeparate payment rules applyRVU25C
2025-04-01Separate payment rules applySeparate payment rules applyRVU25B
2025-01-01Separate payment rules applySeparate payment rules applyRVU25A
2024-10-01Separate payment rules applySeparate payment rules applyRVU24D
2024-07-01Separate payment rules applySeparate payment rules applyRVU24C
2024-04-01Separate payment rules applySeparate payment rules applyRVU24B
2024-03-09Separate payment rules applySeparate payment rules applyRVU24AR
2024-01-01Separate payment rules applySeparate payment rules applyRVU24A
2023-10-01Separate payment rules applySeparate payment rules applyRVU23D
2023-07-01Separate payment rules applySeparate payment rules applyRVU23C
2023-04-01Separate payment rules applySeparate payment rules applyRVU23B
2023-01-01Separate payment rules applySeparate payment rules applyRVU23A
2022-10-01Separate payment rules applySeparate payment rules applyRVU22D
2022-07-01Separate payment rules applySeparate payment rules applyRVU22C
2022-04-01Separate payment rules applySeparate payment rules applyRVU22B
2022-01-01Separate payment rules applySeparate payment rules applyRVU22A
2021-10-01Separate payment rules applySeparate payment rules applyRVU21D
2021-07-01Separate payment rules applySeparate payment rules applyRVU21C
2021-04-01Separate payment rules applySeparate payment rules applyRVU21B
2021-01-01Separate payment rules applySeparate payment rules applyRVU21A
2020-10-01Separate payment rules applySeparate payment rules applyRVU20D
2020-07-01Separate payment rules applySeparate payment rules applyRVU20C
2020-04-01Separate payment rules applySeparate payment rules applyRVU20B
2020-01-01Separate payment rules applySeparate payment rules applyRVU20A
2019-10-01Separate payment rules applySeparate payment rules applyRVU19D
2019-07-01Separate payment rules applySeparate payment rules applyRVU19C
2019-04-01Separate payment rules applySeparate payment rules applyRVU19B
2019-01-01Separate payment rules applySeparate payment rules applyRVU19A
2018-10-01Separate payment rules applySeparate payment rules applyRVU18D
2018-07-01Separate payment rules applySeparate payment rules applyRVU18C
2018-04-01Separate payment rules applySeparate payment rules applyRVU18B
2018-01-01Separate payment rules applySeparate payment rules applyRVU18AR1
2017-10-01Separate payment rules applySeparate payment rules applyRVU17D
2017-07-01Separate payment rules applySeparate payment rules applyRVU17C
2017-04-01Separate payment rules applySeparate payment rules applyRVU17B
2017-01-01Separate payment rules applySeparate payment rules applyRVU17A
2016-10-01Separate payment rules applySeparate payment rules applyRVU16D
2016-07-01Separate payment rules applySeparate payment rules applyRVU16C
2016-04-01Separate payment rules applySeparate payment rules applyRVU16B
2016-01-01Separate payment rules applySeparate payment rules applyRVU16A
2015-10-01Separate payment rules applySeparate payment rules applyRVU15D
2015-07-01Separate payment rules applySeparate payment rules applyRVU15C
2015-04-01Separate payment rules applySeparate payment rules applyRVU15B
2015-01-01Separate payment rules applySeparate payment rules applyRVU15A
2014-10-01$134.04Not available in this settingRVU14D
2014-07-01$134.04Not available in this settingRVU14C
2014-04-01$134.04Not available in this settingRVU14B
2014-01-01$134.04Not available in this settingRVU14A
2013-10-01$148.80Not available in this settingRVU13D
2013-07-01Rate data unavailableNot available in this settingRVU13C
2013-04-01Rate data unavailableNot available in this settingRVU13B
2013-01-01Rate data unavailableNot available in this settingRVU13AR

Price 77402 for an earlier date of service

Where the Wisconsin rate applies

Wisconsin is a Medicare payment area, not a city. Our Census mapping connects it to 807 cities and communities in Wisconsin. Some span more than one payment area; confirm with the service ZIP.

  • Abbotsford
  • Abrams
  • Adams
  • Adell
  • Albany
  • Algoma
  • Allens Grove
  • Allenton

Browse all communities in Wisconsin

77402 billing questions

How is level 1 distinguished from levels 2 and 3?

Choose the level that matches the technical complexity of the delivered treatment, not the diagnosis or treatment site alone. The treatment record should support why the session meets level 1 rather than a higher level.

Is 77402 reported for each beam or port?

No. It represents the qualifying delivery session; do not count each beam or port as a separate unit.

Does 77402 include the physician’s interpretation?

No. CMS classifies it as a technical-component-only code, and a separate code covers interpretation.

What documentation supports reporting 77402?

The treatment record should identify the delivered session and include technical details that support level 1. The record should also allow the reported delivery level to be distinguished from levels 2 and 3.

Is 77417 the same service as 77402?

No. 77402 reports radiation treatment delivery; 77417 represents therapeutic radiology port imaging when that imaging service is performed.

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 77402PPRRVU2026_Oct_nonQPP.csv, line 9,097 (RVU26D)
Geographic factors for WisconsinGPCI2026.csv, line 111 (RVU26D)

Open CMS sourceHow we calculate rates

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