$131.99
Use 77333 when the aid's design and construction are intermediate rather than simple; the documented work determines the level.
On this page
CMS RVU26D · Effective 2026-10-01
77332 Treatment aid Medicare reimbursement rates in Wisconsin
Reports design and construction of a simple radiation treatment aid, such as a basic block or bolus, for a patient's treatment setup. Compare 77332 office and facility rates across CMS payment localities in Wisconsin.
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
What does Medicare pay for 77332 in Wisconsin?
Wisconsin has 1 payment locality in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the payment area shown below, using the same CMS release.
Office / nonfacility
$39.00
1 of 1 localities have a supported rate.
Payment area: Wisconsin
One mapped payment locality.
Facility setting
No supported rate
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Radiation oncology
About 77332: Simple radiation treatment aid
Reports design and construction of a simple radiation treatment aid, such as a basic block or bolus, for a patient's treatment setup.
77332 covers the design and construction of a straightforward device used to shape or support radiation treatment, such as a simple beam block, bolus, or basic immobilization aid. Radiation oncologists prescribe the treatment approach; medical physicists, dosimetrists, and radiation therapists may contribute to planning, fabrication, and verification in radiation oncology clinics or hospital departments. The device is specific to the patient's treatment setup, rather than a dose calculation or the treatment delivery itself.
Choose this level when the device work is simple; use 77333 or 77334 when documented device complexity reaches those higher levels. The record should identify the device, treatment site and purpose, and work supporting its simple design and construction. CMS identifies separately priced professional and technical components: modifier 26 reports the professional interpretation, modifier TC reports equipment and staff, and billing without either modifier represents the global service.
CMS billing rules for 77332
- Professional and technical components
- Diagnostic test with a professional component (modifier 26, interpretation) and a technical component (modifier TC, equipment and staff); billing without a modifier is the global service.
Where the value comes from
- Work RVU0.44 · 36%
- Practice expense (office) RVU0.75 · 61%
- Malpractice RVU0.03 · 2%
71.1K
Medicare services in 2024 · #666 by national volume
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.
77332 compared with similar codes
Office rates for Wisconsin, from the same CMS release.
$121.22
Use 77334 for complex treatment aid design and construction, rather than the simple device work reported with 77332.
$455.45
77338 is specific to multileaf-collimator device design for IMRT; 77332 describes a simple treatment aid such as a basic block or bolus.
Compare 77332 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
1 of 1 payment localities
Wisconsin →
Office / nonfacility
$39.00
Facility
Unavailable
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How this local rate is calculated
Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for 77332 in Wisconsin.
PPRRVU2026_Oct_nonQPP.csv
9,074
- Code
- 77332
- Physician work
- 0.44
- Practice expense
- 0.75
- Malpractice
- 0.03
GPCI2026.csv
111
- Locality
- Wisconsin
- Physician work
- 1.000
- Practice expense
- 0.958
- Malpractice
- 0.308
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 0.44 | × 1.000 | 0.4400 |
| Practice expense | 0.75 | × 0.958 | 0.7185 |
| Malpractice | 0.03 | × 0.308 | 0.0092 |
| Total RVUs | 1.1677 | ||
| Conversion factor | × 33.4009 | ||
Office / nonfacility rate, Wisconsin$39.00
Explore RVUs, geographic factors and the full formula
Office / nonfacility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 0.44 | 1 |
| Practice expense | 0.75 | 0.958 |
| Malpractice | 0.03 | 0.308 |
(0.44 × 1 + 0.75 × 0.958 + 0.03 × 0.308) × $33.4009 = $39.00
The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.
77332 billing questions
How does 77332 differ from 77333 and 77334?
77332 is for simple device work. Select 77333 or 77334 when the documented device design and construction meet the intermediate or complex level, respectively.
Can a simple block or bolus support 77332?
Yes. A simple beam block or simple bolus is a typical example; the record should show the device and its role in the patient's treatment setup.
Does 77332 report radiation dose calculation?
No. It represents the treatment aid's design and construction, while 77300 represents a radiation dose calculation when that separate service is performed.
When should modifier 26 or TC be used?
Use modifier 26 for the professional interpretation and TC for the technical portion involving equipment and staff. Billing without either modifier represents the global service.
What documentation supports the simple level?
Identify the aid, the treatment site and purpose, and the design and construction work showing why the device is simple rather than intermediate or complex.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
9,07177331,,Special radiation dosimetry,A,,0.85,1.05,,1.05,NA,0.05,1.95,1.95,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
9,07277331,26,Special radiation dosimetry,A,,0.85,0.48,,0.48,,0.04,1.37,1.37,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
9,07377331,TC,Special radiation dosimetry,A,,0.00,0.57,,0.57,NA,0.01,0.58,0.58,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
9,07477332,,Radiation treatment aid(s),A,,0.44,0.75,,0.75,NA,0.03,1.22,1.22,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
9,07577332,26,Radiation treatment aid(s),A,,0.44,0.25,,0.25,,0.02,0.71,0.71,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
9,07677332,TC,Radiation treatment aid(s),A,,0.00,0.50,,0.50,NA,0.01,0.51,0.51,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
9,07777333,,Radiation treatment aid(s),A,,0.73,3.35,,3.35,NA,0.04,4.12,4.12,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
10802402,WA,02,SEATTLE (KING CNTY),1.050,1.227,0.817
10902402,WA,99,REST OF WASHINGTON,1.013,1.053,0.761
11011402,WV,16,WEST VIRGINIA,1.000,0.869,1.431
11106302,WI,00,WISCONSIN,1.000,0.958,0.308
11203602,WY,21,WYOMING**,1.000,1.000,0.740
113"MAC Assignments as of November 22, 2023",,,,,,
114,,,,,,