CPT code 77767: Skin brachytherapy, one channel2026 Medicare rate & RVUs in Missouri
Report this service for high-dose-rate radionuclide brachytherapy delivered to a skin surface target through a single-channel applicator.
Medicare pays $221.26–$240.59 for 77767 in the office in Missouri, from Rest of Missouri to Metropolitan St. Louis, MO. 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.
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What 77767 covers
This service covers high-dose-rate radionuclide brachytherapy delivered at the skin surface through a single-channel applicator. A radiation oncologist typically selects and positions the applicator over a localized target, such as a superficial skin cancer, and supervises the treatment in a radiation oncology setting. The service includes handling and loading the applicator when performed; it is distinct from brachytherapy delivered through interstitial or intracavitary sources.
Select this code when the skin-surface treatment uses one channel; use the related multiple-channel code when the applicator uses two or more channels. Document the treated site, applicator configuration, channel count, and treatment delivered. CMS recognizes separately priced professional and technical components: modifier 26 identifies the professional interpretation component, modifier TC identifies 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 77767 pays more and less in Missouri
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
3 payment localities
$221.26 to $240.59
| Payment locality | Office | Facility |
|---|---|---|
| Metropolitan Kansas City, MO | $237.73 | Unavailable |
| Metropolitan St. Louis, MO | $240.59 | Unavailable |
| Rest of Missouri | $221.26 | Unavailable |
How the 77767 rate is calculated
Each of 77767’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 · 77767
RVUs × geographic indexes × conversion factor
Work1.02
1.02 RVUs× 1.000 GPCI
Practice expense6.40
6.40 RVUs× 1.000 GPCI
Malpractice0.09
0.09 RVUs× 1.000 GPCI
Adjusted RVUs
7.5100
Conversion factor
$33.4009
Medicare rate
$250.84
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 77767
The CMS indicators that decide how 77767 is paid alongside other services.
CMS payment indicators · 77767
Skin brachytherapy, one channel
| 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
77767 without 26 · national office
$250.84
Skin brachytherapy, one channel
77767-26 · Professional component
$54.78
Pays only the interpretation and report.
77767 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 77768Skin brachytherapySurface field over 2 cm
- Both describe HDR radionuclide brachytherapy at the skin surface. Choose 77767 for one channel and 77768 for two or more channels.
- 77770HDR brachytherapySingle channel, per fraction
- This code is for skin-surface HDR treatment through a single-channel applicator; 77770 is for interstitial or intracavitary HDR brachytherapy.
- 77789Surface brachytherapyLow-dose-rate application
- 77767 describes HDR skin-surface brachytherapy. 77789 describes surface application of a radionuclide using a different treatment technique.
77767 billing questions
How does this code differ from 77768?
The channel count distinguishes the two skin-surface HDR codes: 77767 is for one channel, while 77768 is for two or more. Record the applicator configuration in the treatment documentation.
Can the professional and technical portions be billed separately?
Yes. CMS separately prices modifier 26 for the professional component and modifier TC for the technical component; billing without either modifier represents the global service.
Does this code describe interstitial or intracavitary brachytherapy?
No. It describes HDR radionuclide treatment at the skin surface. Interstitial and intracavitary HDR treatments are represented by other codes in the brachytherapy family.
What documentation supports reporting 77767?
Document the skin target and site, the HDR radionuclide treatment, the applicator used, and that it has one channel. Include applicator handling and loading when performed.
Is applicator handling separately reported with this service?
Handling and loading of the applicator, when performed, are included in this service. Do not report them as separate services for the same treatment.
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
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