No office rate
61863 covers the first subcortical array without intraoperative microelectrode recording; 61864 covers each additional array in that procedure.
On this page
CMS RVU26D · Effective 2026-10-01
61864 Brain electrode implant Medicare reimbursement rates in Wyoming
Reports placement of each additional subcortical neurostimulator electrode array through a twist drill or burr hole when intraoperative microelectrode recording is not used. Compare 61864 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 61864 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
$243.21
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.
Neurosurgery
About 61864: Additional subcortical stimulation electrode array
Reports placement of each additional subcortical neurostimulator electrode array through a twist drill or burr hole when intraoperative microelectrode recording is not used.
A neurosurgeon places an additional electrode array in a subcortical brain target for neurostimulation, using a twist drill or burr hole. This code is for an array beyond the first during the implantation procedure and describes the pathway without intraoperative microelectrode recording. Such electrode placement is commonly part of deep brain stimulation surgery for movement disorders, including Parkinson disease, essential tremor, or dystonia.
Report 61864 with the first-array code 61863 when the operative documentation supports an additional array placed during the same procedure. The note should identify the number of arrays implanted, the subcortical placement, the surgical approach, and whether intraoperative microelectrode recording was used. CMS classifies 61864 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 61864
- 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 RVU4.38 · 56%
- Practice expense (office) RVU1.54 · 20%
- Malpractice RVU1.84 · 24%
720
Medicare services in 2024 · #3234 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.
61864 compared with similar codes
Office rates for Wyoming, from the same CMS release.
No office rate
Use 61868 for an additional array when intraoperative microelectrode recording is used; 61864 is for the pathway without that recording.
No office rate
61867 covers the first array when intraoperative microelectrode recording is used. It is not the additional-array code; that code is 61868.
Compare 61864 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
$243.21
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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 61864 in Wyoming**.
PPRRVU2026_Oct_nonQPP.csv
6,897
- Code
- 61864
- Physician work
- 4.38
- Practice expense
- 1.54
- Malpractice
- 1.84
GPCI2026.csv
112
- Locality
- Wyoming**
- Physician work
- 1.000
- Practice expense
- 1.000
- Malpractice
- 0.740
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 4.38 | × 1.000 | 4.3800 |
| Practice expense | 1.54 | × 1.000 | 1.5400 |
| Malpractice | 1.84 | × 0.740 | 1.3616 |
| Total RVUs | 7.2816 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Wyoming**$243.21
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 4.38 | 1 |
| Practice expense | 1.54 | 1 |
| Malpractice | 1.84 | 0.74 |
(4.38 × 1 + 1.54 × 1 + 1.84 × 0.74) × $33.4009 = $243.21
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.
61864 billing questions
When is 61864 reported with 61863?
Report 61864 for an additional subcortical electrode array placed during the procedure, with 61863 for the first array when intraoperative microelectrode recording is not used.
Does 61864 count electrode contacts or arrays?
It represents an additional electrode array, not each contact on an array. The operative report should document the number of arrays implanted.
How does 61864 differ from 61868?
Both describe an additional array. 61864 is for the procedure without intraoperative microelectrode recording; 61868 is the corresponding additional-array code when that recording is used.
Can 61864 be billed by itself?
No. It is an add-on code and must be reported with the primary procedure, typically 61863 for the first array in this no-recording pathway.
What documentation supports reporting 61864?
Document the additional array’s placement, the subcortical target and approach, and whether intraoperative microelectrode recording was used.
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.
6,89461850,,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
6,89661863,,Implant neuroelectrode,A,,20.19,16.07,NA,16.07,,8.53,44.79,44.79,0,090,0.11,0.76,0.13,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,89761864,,Implant neuroelectrde addl,A,,4.38,1.54,NA,1.54,,1.84,7.76,7.76,0,ZZZ,0.00,0.00,0.00,0,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,89861867,,Implant neuroelectrode,A,,32.20,20.26,NA,20.26,,13.60,66.06,66.06,0,090,0.11,0.76,0.13,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,89961868,,Implant neuroelectrde addl,A,,7.71,2.70,NA,2.70,,3.24,13.65,13.65,0,ZZZ,0.00,0.00,0.00,0,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,90061880,,Revise/remove neuroelectrode,A,,6.78,8.93,NA,8.93,,2.84,18.55,18.55,0,090,0.11,0.76,0.13,2,1,2,1,0,9,,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.,,,,,,