77371
No office rateSrs multisource
Use 77371 for stereotactic radiosurgery delivery to intracranial targets; 77373 describes SBRT delivery to body targets.
On this page
CMS RVU26D · Effective 2026-10-01
77373 SBRT delivery Medicare reimbursement rates in Kentucky
Reports image-guided stereotactic radiation delivery to one or more body lesions per fraction during a course of no more than five fractions. Compare 77373 office and facility rates across CMS payment localities in Kentucky.
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 77373 in Kentucky?
Kentucky 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
$870.23
1 of 1 localities have a supported rate.
Payment area: Kentucky
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 77373: Stereotactic body radiation delivery
Reports image-guided stereotactic radiation delivery to one or more body lesions per fraction during a course of no more than five fractions.
Stereotactic body radiation therapy (SBRT) delivers precisely targeted, high-dose radiation to tumors outside the brain, commonly in the lung, liver, or spine. Radiation oncologists prescribe and oversee treatment, while radiation therapists deliver each fraction using specialized equipment and image guidance to position and verify the target. The service is performed in a radiation oncology treatment setting.
Report 77373 once for each treatment fraction, whether one or multiple lesions are treated in that fraction; the code describes a course of no more than five fractions. The treatment record should support the treated target or targets, fraction date, image-guided setup, and completed delivery. Image guidance is included in the service. CMS treats this as a technical-component-only code; a separate code covers interpretation. The CMS fee schedule assigns no physician-work value to this code.
CMS billing rules for 77373
- Professional and technical components
- Technical-component-only code: a separate code covers interpretation.
Where the value comes from
- Work RVU0.00 · 0%
- Practice expense (office) RVU29.05 · 99%
- Malpractice RVU0.25 · 1%
45.4K
Medicare services in 2024 · #817 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.
77373 compared with similar codes
Office rates for Kentucky, from the same CMS release.
$830.41
77372 is linear-accelerator-based stereotactic radiosurgery for intracranial targets. Use 77373 for stereotactic treatment delivery to body targets.
$613.81
77435 reports physician treatment management for an SBRT course; 77373 reports the technical delivery of each treatment fraction.
$1,772.19
77301 describes IMRT treatment planning. It is planning work, not the image-guided SBRT fraction delivery reported with 77373.
Compare 77373 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
Kentucky →
Office / nonfacility
$870.23
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 77373 in Kentucky.
PPRRVU2026_Oct_nonQPP.csv
9,090
- Code
- 77373
- Physician work
- 0.00
- Practice expense
- 29.05
- Malpractice
- 0.25
GPCI2026.csv
55
- Locality
- Kentucky
- Physician work
- 1.000
- Practice expense
- 0.889
- Malpractice
- 0.915
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 0.00 | × 1.000 | 0.0000 |
| Practice expense | 29.05 | × 0.889 | 25.8255 |
| Malpractice | 0.25 | × 0.915 | 0.2288 |
| Total RVUs | 26.0542 | ||
| Conversion factor | × 33.4009 | ||
Office / nonfacility rate, Kentucky$870.23
Explore RVUs, geographic factors and the full formula
Office / nonfacility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 0 | 1 |
| Practice expense | 29.05 | 0.889 |
| Malpractice | 0.25 | 0.915 |
(0 × 1 + 29.05 × 0.889 + 0.25 × 0.915) × $33.4009 = $870.23
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.
77373 billing questions
Is 77373 reported per lesion or per fraction?
Report it per fraction, not once for each lesion. The code covers treatment of one or more lesions in that fraction.
What documentation supports a 77373 claim?
The treatment record should identify the target or targets, the date and fraction delivered, image-guided setup, and completion of treatment delivery.
Can image guidance be billed separately with 77373?
Image guidance is included in 77373, so it should not be separately reported for the same SBRT delivery.
Does 77373 include the physician's interpretation?
No. CMS classifies 77373 as technical-component-only; a separate code covers interpretation.
How does 77373 differ from 77371 and 77372?
77373 is for stereotactic radiation treatment of body targets. Codes 77371 and 77372 describe stereotactic radiosurgery delivery for intracranial targets.
Is 77373 the same service as SBRT treatment management?
No. 77373 reports treatment delivery by fraction; 77435 reports physician treatment management for the SBRT course.
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.
9,08777370,,Radiation physics consult,A,,0.00,4.37,,4.37,NA,0.15,4.52,4.52,3,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
9,08877371,,Srs multisource,C,,0.00,0.00,,0.00,,0.00,0.00,0.00,3,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
9,08977372,,Srs linear based,A,,0.00,27.75,,27.75,NA,0.21,27.96,27.96,3,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
9,09077373,,Strtctc bdy rad ther tx dlvr,A,,0.00,29.05,,29.05,NA,0.25,29.30,29.30,3,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
9,09177387,,Guidance for radj tx dlvr,A,,0.68,0.38,,0.38,NA,0.03,1.09,1.09,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
9,09277387,26,Guidance for radj tx dlvr,A,,0.68,0.38,,0.38,,0.03,1.09,1.09,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
9,09377387,TC,Guidance for radj tx dlvr,B,,0.00,0.00,,0.00,NA,0.00,0.00,0.00,1,XXX,0.00,0.00,0.00,9,9,9,9,9,9,,33.4009,09,0,99,0.00,0.00,0.00
5208102,IN,00,INDIANA,1.000,0.927,0.486
5305102,IA,00,IOWA,1.000,0.915,0.397
5405202,KS,00,KANSAS,1.000,0.904,0.504
5515102,KY,00,KENTUCKY,1.000,0.889,0.915
5607202,LA,01,NEW ORLEANS,1.000,0.941,1.136
5707202,LA,99,REST OF LOUISIANA,1.000,0.885,0.958
5814112,ME,03,SOUTHERN MAINE,1.000,0.991,0.631