Use 77761 when the intracavitary application is documented as simple. This code represents the intermediate level.
On this page
CMS RVU26D · Effective 2026-10-01
77762 Intracavitary radiation Medicare reimbursement rates in Guam
Reports intermediate-complexity placement of radioactive sources within a body cavity, commonly for brachytherapy delivered through an intracavitary applicator. Compare 77762 office and facility rates across CMS payment localities in Guam.
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 77762 in Guam?
Guam 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
$603.48
1 of 1 localities have a supported rate.
Payment area: Hawaii, Guam
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 77762: Intermediate intracavitary radiation application
Reports intermediate-complexity placement of radioactive sources within a body cavity, commonly for brachytherapy delivered through an intracavitary applicator.
A radiation oncologist reports this service for intermediate-complexity placement of radioactive sources inside a body cavity for brachytherapy. A common setting is treatment of gynecologic cancer, such as cervical cancer, using an intracavitary applicator placed in the uterus or vagina. The work centers on applying the source through the cavity-based approach; it is distinct from placing sources within tissue or delivering high-dose-rate treatment categorized by channel count.
Select the intermediate level based on the documented complexity of the intracavitary application, not simply the diagnosis or treatment site. The operative or procedure note should describe the applicator and source placement and support why the service is intermediate rather than simple or complex. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. The service may be billed globally or with modifier 26 for the professional interpretation portion and modifier TC for the technical equipment and staff portion. Modifier 50 is inappropriate. Assistant-at-surgery payment requires medical-necessity documentation; co-surgeons and team surgery are not permitted.
CMS billing rules for 77762
- Global period
- Major surgery with a 90-day global period: the day-before preoperative visit and 90 days of related postoperative care are included.
- 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.
- Bilateral procedures
- Bilateral adjustment does not apply; the descriptor or anatomy makes modifier 50 inappropriate.
- Assistant at surgery
- Assistant at surgery is paid only with documentation of medical necessity.
- Co-surgeons
- Co-surgeons not permitted.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU5.62 · 34%
- Practice expense (office) RVU10.79 · 65%
- Malpractice RVU0.31 · 2%
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.
77762 compared with similar codes
Office rates for Guam, from the same CMS release.
Use 77763 when the intracavitary application is documented as complex. This code represents the intermediate level.
77770 describes high-dose-rate brachytherapy delivery in a channel-count category. This code describes an intermediate-complexity intracavitary source application.
Compare 77762 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
Hawaii, Guam →
Office / nonfacility
$603.48
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 77762 in Hawaii, Guam.
PPRRVU2026_Oct_nonQPP.csv
9,148
- Code
- 77762
- Physician work
- 5.62
- Practice expense
- 10.79
- Malpractice
- 0.31
GPCI2026.csv
46
- Locality
- Hawaii, Guam
- Physician work
- 1.000
- Practice expense
- 1.137
- Malpractice
- 0.579
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 5.62 | × 1.000 | 5.6200 |
| Practice expense | 10.79 | × 1.137 | 12.2682 |
| Malpractice | 0.31 | × 0.579 | 0.1795 |
| Total RVUs | 18.0677 | ||
| Conversion factor | × 33.4009 | ||
Office / nonfacility rate, Hawaii, Guam$603.48
Explore RVUs, geographic factors and the full formula
Office / nonfacility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 5.62 | 1 |
| Practice expense | 10.79 | 1.137 |
| Malpractice | 0.31 | 0.579 |
(5.62 × 1 + 10.79 × 1.137 + 0.31 × 0.579) × $33.4009 = $603.48
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.
77762 billing questions
How does this differ from 77761 or 77763?
These codes distinguish simple, intermediate, and complex intracavitary applications. The operative documentation should support the level of application performed; the treatment site alone does not determine the level.
Can the professional and technical portions be billed separately?
Yes. Modifier 26 identifies the professional interpretation portion, modifier TC identifies the technical equipment and staff portion, and billing without either modifier represents the global service.
Does this code have a global period?
Yes. CMS assigns a 90-day global period that includes the day-before preoperative visit and related postoperative care during the 90 days after surgery.
Can modifier 50 or an assistant surgeon be reported?
Modifier 50 is inappropriate for this service. Assistant-at-surgery payment requires documentation of medical necessity; co-surgeons and team surgery are not permitted.
What documentation supports the intermediate level?
Document the intracavitary approach, applicator and source placement, and the procedural details that support an intermediate rather than simple or complex application.
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.
