CPT code 77332: Treatment aid2026 Medicare rate & RVUs
Reports design and construction of a simple radiation treatment aid, such as a basic block or bolus, for a patient's treatment setup.
Medicare pays $40.75 for 77332 nationally in the office. Local office rates run $36.73–$52.97.
Medicare rate · 77332
Treatment aid
- Work RVUs
- 0.44
- Total RVUs
- 1.22
- Global days
- XXX
National rate · 2026
$40.75
Office setting, before claim adjustments.
See every locality for 77332 →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
What 77332 covers
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.
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 77332 pays more and less
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
109 payment localities
$36.73 to $52.97
109 of 109 payment localities
| Payment locality | Office | Facility |
|---|---|---|
| Alabama | $37.18 | Unavailable |
| Alaska* | $49.28 | Unavailable |
| Arizona | $39.83 | Unavailable |
| Arkansas | $36.73 | Unavailable |
| Atlanta | $41.40 | Unavailable |
| Austin | $42.12 | Unavailable |
| Bakersfield | $43.04 | Unavailable |
| Baltimore/Surr. Cntys | $43.05 | Unavailable |
| Beaumont | $38.42 | Unavailable |
| Brazoria | $40.42 | Unavailable |
| Chicago | $42.27 | Unavailable |
| Chico | $42.94 | Unavailable |
| Colorado | $42.31 | Unavailable |
| Connecticut | $43.18 | Unavailable |
| Dallas | $40.64 | Unavailable |
| Dc + Md/Va Suburbs | $46.11 | Unavailable |
| Delaware | $40.42 | Unavailable |
| Detroit | $40.56 | Unavailable |
| East St. Louis | $39.76 | Unavailable |
| El Centro | $42.94 | Unavailable |
| Fort Lauderdale | $41.88 | Unavailable |
| Fort Worth | $40.40 | Unavailable |
| Fresno | $42.94 | Unavailable |
| Galveston | $40.52 | Unavailable |
| Hanford-Corcoran | $42.94 | Unavailable |
| Hawaii, Guam | $43.76 | Unavailable |
| Houston | $41.07 | Unavailable |
| Idaho | $38.22 | Unavailable |
| Indiana | $38.41 | Unavailable |
| Iowa | $38.02 | Unavailable |
| Kansas | $37.85 | Unavailable |
| Kentucky | $37.88 | Unavailable |
| Los Angeles-Long Beach-Anaheim (Los Angeles/Orange Cnty) | $45.60 | Unavailable |
| Madera | $42.94 | Unavailable |
| Manhattan | $46.34 | Unavailable |
| Merced | $42.94 | Unavailable |
| Metropolitan Boston | $46.10 | Unavailable |
| Metropolitan Kansas City | $39.20 | Unavailable |
| Metropolitan Philadelphia | $42.23 | Unavailable |
| Metropolitan St. Louis | $39.55 | Unavailable |
| Miami | $43.31 | Unavailable |
| Minnesota | $40.77 | Unavailable |
| Mississippi | $37.01 | Unavailable |
| Modesto | $42.94 | Unavailable |
| Montana** | $40.75 | Unavailable |
| Napa | $49.15 | Unavailable |
| Nebraska | $38.20 | Unavailable |
| Nevada** | $40.61 | Unavailable |
| New Hampshire | $41.65 | Unavailable |
| New Mexico | $38.87 | Unavailable |
| New Orleans | $39.41 | Unavailable |
| North Carolina | $38.71 | Unavailable |
| North Dakota** | $40.15 | Unavailable |
| Northern Nj | $45.75 | Unavailable |
| Nyc Suburbs/Long Island | $47.28 | Unavailable |
| Ohio | $38.58 | Unavailable |
| Oklahoma | $37.85 | Unavailable |
| Oxnard-Thousand Oaks-Ventura | $45.34 | Unavailable |
| Portland | $43.51 | Unavailable |
| Poughkpsie/N Nyc Suburbs | $44.00 | Unavailable |
| Puerto Rico | $41.01 | Unavailable |
| Queens | $46.69 | Unavailable |
| Redding | $42.94 | Unavailable |
| Rest Of California | $42.94 | Unavailable |
| Rest Of Florida | $40.15 | Unavailable |
| Rest Of Georgia | $38.24 | Unavailable |
| Rest Of Illinois | $39.13 | Unavailable |
| Rest Of Louisiana | $37.83 | Unavailable |
| Rest Of Maine | $38.37 | Unavailable |
| Rest Of Maryland | $41.11 | Unavailable |
| Rest Of Massachusetts | $42.11 | Unavailable |
| Rest Of Michigan | $38.70 | Unavailable |
| Rest Of Missouri | $37.27 | Unavailable |
| Rest Of New Jersey | $43.74 | Unavailable |
| Rest Of New York | $39.20 | Unavailable |
| Rest Of Oregon | $40.35 | Unavailable |
| Rest Of Pennsylvania | $38.64 | Unavailable |
| Rest Of Texas | $39.37 | Unavailable |
| Rest Of Washington | $42.03 | Unavailable |
| Rhode Island | $41.75 | Unavailable |
| Riverside-San Bernardino-Ontario | $43.27 | Unavailable |
| Sacramento-Roseville-Folsom | $44.90 | Unavailable |
| Salinas | $44.72 | Unavailable |
| San Diego-Chula Vista-Carlsbad | $45.64 | Unavailable |
| San Francisco-Oakland-Berkeley (Marin Cnty) | $51.87 | Unavailable |
| San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty) | $51.84 | Unavailable |
| San Jose-Sunnyvale-Santa Clara (San Benito Cnty) | $52.97 | Unavailable |
| San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty) | $52.83 | Unavailable |
| San Luis Obispo-Paso Robles | $44.02 | Unavailable |
| Santa Cruz-Watsonville | $45.98 | Unavailable |
| Santa Maria-Santa Barbara | $44.85 | Unavailable |
| Santa Rosa-Petaluma | $46.44 | Unavailable |
| Seattle (King Cnty) | $46.99 | Unavailable |
| South Carolina | $38.69 | Unavailable |
| South Dakota** | $40.08 | Unavailable |
| Southern Maine | $40.15 | Unavailable |
| Stockton | $42.94 | Unavailable |
| Suburban Chicago | $42.30 | Unavailable |
| Tennessee | $38.01 | Unavailable |
| Utah | $39.14 | Unavailable |
| Vallejo | $49.10 | Unavailable |
| Vermont | $40.00 | Unavailable |
| Virgin Islands | $41.01 | Unavailable |
| Virginia | $40.03 | Unavailable |
| Visalia | $42.94 | Unavailable |
| West Virginia | $37.90 | Unavailable |
| Wisconsin | $39.00 | Unavailable |
| Wyoming** | $40.49 | Unavailable |
| Yuba City | $42.94 | Unavailable |
77332 rates by state
Office rate range in each state. Select a state to see its payment localities.
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.
$36.73
$49.28
Color shows the midpoint of each state’s locality range.
View every state and territory as a table
| State / territory | Office rate range | Localities |
|---|---|---|
| AK | $49.28 | 1 |
| AL | $37.18 | 1 |
| AR | $36.73 | 1 |
| AZ | $39.83 | 1 |
| CA | $42.94–$52.97 | 29 |
| CO | $42.31 | 1 |
| CT | $43.18 | 1 |
| DC | $46.11 | 1 |
| DE | $40.42 | 1 |
| FL | $40.15–$43.31 | 3 |
| GA | $38.24–$41.40 | 2 |
| GU | $43.76 | 1 |
| HI | $43.76 | 1 |
| IA | $38.02 | 1 |
| ID | $38.22 | 1 |
| IL | $39.13–$42.30 | 4 |
| IN | $38.41 | 1 |
| KS | $37.85 | 1 |
| KY | $37.88 | 1 |
| LA | $37.83–$39.41 | 2 |
| MA | $42.11–$46.10 | 2 |
| MD | $41.11–$46.11 | 3 |
| ME | $38.37–$40.15 | 2 |
| MI | $38.70–$40.56 | 2 |
| MN | $40.77 | 1 |
| MO | $37.27–$39.55 | 3 |
| MS | $37.01 | 1 |
| MT | $40.75 | 1 |
| NC | $38.71 | 1 |
| ND | $40.15 | 1 |
| NE | $38.20 | 1 |
| NH | $41.65 | 1 |
| NJ | $43.74–$45.75 | 2 |
| NM | $38.87 | 1 |
| NV | $40.61 | 1 |
| NY | $39.20–$47.28 | 5 |
| OH | $38.58 | 1 |
| OK | $37.85 | 1 |
| OR | $40.35–$43.51 | 2 |
| PA | $38.64–$42.23 | 2 |
| PR | $41.01 | 1 |
| RI | $41.75 | 1 |
| SC | $38.69 | 1 |
| SD | $40.08 | 1 |
| TN | $38.01 | 1 |
| TX | $38.42–$42.12 | 8 |
| UT | $39.14 | 1 |
| VA | $40.03–$46.11 | 2 |
| VI | $41.01 | 1 |
| VT | $40.00 | 1 |
| WA | $42.03–$46.99 | 2 |
| WI | $39.00 | 1 |
| WV | $37.90 | 1 |
| WY | $40.49 | 1 |
How the 77332 rate is calculated
Each of 77332’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 · 77332
RVUs × geographic indexes × conversion factor
Work0.44
0.44 RVUs× 1.000 GPCI
Practice expense0.75
0.75 RVUs× 1.000 GPCI
Malpractice0.03
0.03 RVUs× 1.000 GPCI
Adjusted RVUs
1.2200
Conversion factor
$33.4009
Medicare rate
$40.75
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 77332
The CMS indicators that decide how 77332 is paid alongside other services.
CMS payment indicators · 77332
Treatment aid
| Rule | CMS value | What it means |
|---|---|---|
| Global period | XXX | The global surgery concept doesn’t apply. |
| Multiple procedures | 0 | No multiple-procedure reduction. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 1 | Diagnostic test with separate professional (26) and technical (TC) components. |
What modifiers do to the payment
Modifier 26 · payment effect
With and without the modifier
77332 without 26 · national office
$40.75
Treatment aid
77332-26 · Professional component
$23.71
Pays only the interpretation and report.
77332 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 77333Radiation aid
- Use 77333 when the aid's design and construction are intermediate rather than simple; the documented work determines the level.
- 77334Radiation treatment device
- Use 77334 for complex treatment aid design and construction, rather than the simple device work reported with 77332.
- 77338MLC design
- 77338 is specific to multileaf-collimator device design for IMRT; 77332 describes a simple treatment aid such as a basic block or bolus.
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 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
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