Billing code 77332: Treatment aidMedicare rate & RVUs in Oregon
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 $40.35–$43.51 for 77332 in the office in Oregon, from Rest Of Oregon to Portland. Which amount applies depends on the service address.
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 9 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 in Oregon
| Payment locality | Office | Facility |
|---|---|---|
| Portland | $43.51 | Unavailable |
| Rest Of Oregon | $40.35 | Unavailable |
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
Swap in your local Medicare rate.
Work 0.44Practice expense 0.75Malpractice 0.03
All indexes start 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
77332 vs 77333 vs 77334 vs 77338: national Medicare rates
Swap in your local Medicare rate.
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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