$383.80–$410.23
Choose 77750 for infusion or instillation of a radioactive solution. Choose 77761 when the treatment is intracavitary radiation application using a source or applicator.
On this page
CMS RVU26D · Effective 2026-10-01
77750 Radioactive solution Medicare reimbursement rates in Missouri
Reports treatment delivery by infusing or instilling a radioactive solution at a treatment site, rather than applying a sealed brachytherapy source. Compare 77750 office and facility rates across CMS payment localities in Missouri.
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 77750 in Missouri?
Missouri has 3 payment localities in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the 3 payment areas shown below, using the same CMS release.
Office / nonfacility
$364.36–$384.74
3 of 3 localities have a supported rate.
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.
Where 77750 pays more and less in Missouri
3 payment localities
$364.36 to $384.74
Radiation oncology
About 77750: Radioactive solution infusion or instillation
Reports treatment delivery by infusing or instilling a radioactive solution at a treatment site, rather than applying a sealed brachytherapy source.
CPT 77750 represents delivery of a radioactive solution by infusion or instillation to a treatment site. In radiation oncology, a radiation oncologist directs the treatment; instilling a radionuclide solution into a body cavity is a representative use. The defining feature is solution-based delivery, not placement of a sealed source or the complexity of an intracavitary applicator.
Document the radionuclide solution, route and treatment site, and the service performed so the record supports this delivery method. CMS assigns a 90-day major-surgery global period: the day-before preoperative visit and 90 days of related postoperative care are included. The service may be billed globally or split into modifier 26 for interpretation and modifier TC for equipment and staff. An assistant at surgery is paid only when medical necessity is documented; co-surgeons and team surgery are not permitted.
CMS billing rules for 77750
- 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 RVU4.88 · 41%
- Practice expense (office) RVU6.70 · 57%
- Malpractice RVU0.26 · 2%
566
Medicare services in 2024 · #3450 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.
77750 compared with similar codes
Office rates for Missouri, from the same CMS release.
$845.62–$902.73
77750 describes solution delivery; 77778 describes interstitial radiation application. The method of delivery distinguishes the codes.
$119.97–$128.45
77789 is for surface radionuclide application. It is not the solution infusion or instillation service represented by 77750.
Compare 77750 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.
3 of 3 payment localities
Metropolitan Kansas City →
Office / nonfacility
$381.62
Facility
Unavailable
Metropolitan St. Louis →
Office / nonfacility
$384.74
Facility
Unavailable
Rest Of Missouri →
Office / nonfacility
$364.36
Facility
Unavailable
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77750 billing questions
How does 77750 differ from an intracavitary radiation application code?
Use 77750 for delivery of a radioactive solution by infusion or instillation. Intracavitary application codes describe a different delivery method involving an intracavitary radiation source or applicator.
Can the professional and technical portions be billed separately?
Yes. Modifier 26 identifies the professional interpretation, and modifier TC identifies the technical portion; without either modifier, the claim represents the global service.
What care is included in the global period?
The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.
What documentation supports reporting 77750?
Record the radioactive solution, the route and treatment site, and the infusion or instillation performed. The documentation should distinguish solution delivery from application of a sealed source.
Can an assistant or another surgeon be reported?
Assistant-at-surgery payment requires documentation of medical necessity. Co-surgeons and team surgery are not permitted for this code.
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.
9,13977620,,Hyperthermia gen intrcv prb,R,,1.52,19.96,,19.96,NA,0.43,21.91,21.91,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
9,14077620,26,Hyperthermia gen intrcv prb,R,,1.52,0.74,,0.74,,0.36,2.62,2.62,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
9,14177620,TC,Hyperthermia gen intrcv prb,R,,0.00,19.22,,19.22,NA,0.07,19.29,19.29,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
9,14277750,,Infuse radioactive materials,A,,4.88,6.70,,6.70,NA,0.26,11.84,11.84,1,090,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
9,14377750,26,Infuse radioactive materials,A,,4.88,2.77,,2.77,,0.21,7.86,7.86,1,090,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
9,14477750,TC,Infuse radioactive materials,A,,0.00,3.93,,3.93,NA,0.05,3.98,3.98,1,090,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
9,14577761,,Apply intrcav radiat simple,A,,3.75,8.72,,8.72,NA,0.23,12.70,12.70,1,090,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00