No office rate
61798 reports the primary complex cranial lesion; 61799 reports each additional complex lesion in the same SRS service.
On this page
CMS RVU26D · Effective 2026-10-01
61799 Cranial radiosurgery Medicare reimbursement rates in Wyoming
Reports each additional complex intracranial lesion treated during a cranial stereotactic radiosurgery session when the primary complex-lesion service is also reported. Compare 61799 office and facility rates across CMS payment localities in Wyoming.
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 61799 in Wyoming?
Wyoming 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
No supported rate
Facility setting
$258.80
1 of 1 localities have a supported rate.
Payment area: Wyoming**
One mapped payment locality.
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 61799: Additional complex cranial radiosurgery lesion
Reports each additional complex intracranial lesion treated during a cranial stereotactic radiosurgery session when the primary complex-lesion service is also reported.
This add-on represents treatment of another complex intracranial lesion during cranial stereotactic radiosurgery. SRS delivers focused radiation to a defined target using stereotactic localization. Neurosurgeons and radiation oncologists may participate in planning and treatment, commonly for intracranial tumors or vascular lesions. The complex-versus-simple classification follows the applicable CPT criteria; the lesion diagnosis alone does not establish the code level.
Report 61799 for each additional complex lesion treated in the same service, with 61798 for the primary complex lesion. The record should support the number of distinct lesions treated and the basis for classifying them as complex under CPT guidance. CMS identifies 61799 as an add-on code: it is billed only with a primary procedure and paid within that procedure’s global period.
CMS billing rules for 61799
- Global period
- Add-on code: billed only together with a primary procedure and paid within that procedure's global period.
Where the value comes from
- Work RVU4.69 · 57%
- Practice expense (office) RVU1.63 · 20%
- Malpractice RVU1.93 · 23%
778
Medicare services in 2024 · #3182 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.
61799 compared with similar codes
Office rates for Wyoming, from the same CMS release.
No office rate
Both are additional-lesion SRS codes. The distinction is whether the lesion meets the CPT criteria for complex or simple classification.
No office rate
61796 is the primary code for a simple cranial lesion. It is not the add-on for an additional complex lesion.
Compare 61799 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
Wyoming** →
Office / nonfacility
Unavailable
Facility
$258.80
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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 61799 in Wyoming**.
PPRRVU2026_Oct_nonQPP.csv
6,892
- Code
- 61799
- Physician work
- 4.69
- Practice expense
- 1.63
- Malpractice
- 1.93
GPCI2026.csv
112
- Locality
- Wyoming**
- Physician work
- 1.000
- Practice expense
- 1.000
- Malpractice
- 0.740
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 4.69 | × 1.000 | 4.6900 |
| Practice expense | 1.63 | × 1.000 | 1.6300 |
| Malpractice | 1.93 | × 0.740 | 1.4282 |
| Total RVUs | 7.7482 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Wyoming**$258.80
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 4.69 | 1 |
| Practice expense | 1.63 | 1 |
| Malpractice | 1.93 | 0.74 |
(4.69 × 1 + 1.63 × 1 + 1.93 × 0.74) × $33.4009 = $258.80
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.
61799 billing questions
Which primary code must accompany 61799?
For additional complex cranial lesions, report 61799 with 61798 for the primary complex lesion. The add-on code is not reported by itself.
How many units of 61799 should be reported?
Report one unit for each additional complex lesion treated. The record should make the number of separately treated lesions clear.
How is 61799 distinguished from 61797?
Both report additional cranial lesions treated with SRS. Use 61799 for a complex lesion and 61797 for a simple lesion, applying the CPT criteria for that distinction.
Does the diagnosis determine whether a lesion is complex?
No. A diagnosis such as an intracranial tumor or vascular lesion does not by itself establish complexity; the applicable CPT criteria support the code level.
What documentation supports 61799?
Document the SRS treatment, each lesion treated, and the basis for classifying the additional lesion as complex under CPT guidance. The primary complex-lesion service should also be documented and reported.
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.
6,88961796,,Srs cranial lesion simple,A,,13.58,11.06,NA,11.06,,5.68,30.32,30.32,0,090,0.11,0.76,0.13,0,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,89061797,,Srs cran les simple addl,A,,3.39,1.18,NA,1.18,,1.42,5.99,5.99,0,ZZZ,0.00,0.00,0.00,0,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,89161798,,Srs cranial lesion complex,A,,19.35,12.76,NA,12.76,,7.96,40.07,40.07,0,090,0.11,0.76,0.13,0,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,89261799,,Srs cran les complex addl,A,,4.69,1.63,NA,1.63,,1.93,8.25,8.25,0,ZZZ,0.00,0.00,0.00,0,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,89361800,,Apply srs headframe add-on,A,,2.19,1.25,NA,1.25,,0.92,4.36,4.36,0,ZZZ,0.00,0.00,0.00,0,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,89461850,,Implant neuroelectrodes,A,,13.01,11.15,NA,11.15,,5.48,29.64,29.64,0,090,0.11,0.76,0.13,2,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,89561860,,Implant neuroelectrodes,A,,21.70,14.97,NA,14.97,,9.17,45.84,45.84,0,090,0.11,0.76,0.13,2,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
10902402,WA,99,REST OF WASHINGTON,1.013,1.053,0.761
11011402,WV,16,WEST VIRGINIA,1.000,0.869,1.431
11106302,WI,00,WISCONSIN,1.000,0.958,0.308
11203602,WY,21,WYOMING**,1.000,1.000,0.740
113"MAC Assignments as of November 22, 2023",,,,,,
114,,,,,,
115*Work GPCI reflects a 1.5 floor in Alaska established by the MIPPA.,,,,,,