No office rate
Both are for lobectomy outside the temporal lobe. Choose this code when intraoperative electrocorticography is performed; choose 61536 when it is not.
On this page
CMS RVU26D · Effective 2026-10-01
61537 Brain resection Medicare reimbursement rates in Oklahoma
Reports surgical removal of a cerebral lobe outside the temporal lobe for seizure treatment when intraoperative electrocorticography guides the resection. Compare 61537 office and facility rates across CMS payment localities in Oklahoma.
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 61537 in Oklahoma?
Oklahoma 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
$2171.96
1 of 1 localities have a supported rate.
Payment area: Oklahoma
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 61537: Extratemporal lobectomy with electrocorticography
Reports surgical removal of a cerebral lobe outside the temporal lobe for seizure treatment when intraoperative electrocorticography guides the resection.
A neurosurgeon performs a craniotomy and removes a cerebral lobe other than the temporal lobe, using electrocorticography to record electrical activity directly from the brain during surgery. The service is most often part of epilepsy surgery for a patient with focal seizures, with intraoperative recordings helping identify the tissue involved. It is typically performed in an operating room in a hospital or other surgical facility.
Choose this code when the operation is an extratemporal lobectomy and electrocorticography is performed; a focal excision or a temporal-lobe resection is a different service. The operative report should identify the resected lobe and document the intraoperative electrocorticography. This major surgery has a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and others at 50%. An assistant at surgery may be paid; co-surgeon payment requires supporting documentation, and team surgery is not permitted.
CMS billing rules for 61537
- Global period
- Major surgery with a 90-day global period: the day-before preoperative visit and 90 days of related postoperative care are included.
- Multiple procedures
- Standard multiple procedure reduction: the highest-valued procedure is paid in full and others at 50% when performed in the same session.
- Bilateral procedures
- Bilateral adjustment does not apply; the descriptor or anatomy makes modifier 50 inappropriate.
- Assistant at surgery
- Assistant at surgery may be paid.
- Co-surgeons
- Co-surgeons paid only with supporting documentation.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU35.54 · 50%
- Practice expense (office) RVU19.96 · 28%
- Malpractice RVU15.01 · 21%
78
Medicare services in 2024 · #5077 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.
61537 compared with similar codes
Office rates for Oklahoma, from the same CMS release.
No office rate
Both include intraoperative electrocorticography, but 61534 is for temporal-lobe lobectomy. This code is for a different cerebral lobe.
No office rate
Code 61539 describes excision of an epileptogenic focus with electrocorticography. This code is for a lobectomy outside the temporal lobe with electrocorticography.
Compare 61537 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
Oklahoma →
Office / nonfacility
Unavailable
Facility
$2171.96
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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 61537 in Oklahoma.
PPRRVU2026_Oct_nonQPP.csv
6,797
- Code
- 61537
- Physician work
- 35.54
- Practice expense
- 19.96
- Malpractice
- 15.01
GPCI2026.csv
86
- Locality
- Oklahoma
- Physician work
- 1.000
- Practice expense
- 0.893
- Malpractice
- 0.777
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 35.54 | × 1.000 | 35.5400 |
| Practice expense | 19.96 | × 0.893 | 17.8243 |
| Malpractice | 15.01 | × 0.777 | 11.6628 |
| Total RVUs | 65.0271 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Oklahoma$2171.96
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 35.54 | 1 |
| Practice expense | 19.96 | 0.893 |
| Malpractice | 15.01 | 0.777 |
(35.54 × 1 + 19.96 × 0.893 + 15.01 × 0.777) × $33.4009 = $2171.96
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.
61537 billing questions
How does this differ from code 61536?
Both describe lobectomy outside the temporal lobe, but this code includes intraoperative electrocorticography. Code 61536 is the corresponding option without it.
Can this code be used for temporal-lobe resection?
No. It is for a lobectomy outside the temporal lobe; temporal-lobe cases are distinguished by codes 61533 and 61534, depending on electrocorticography.
When is a focal excision code more appropriate?
Use the applicable epileptogenic-focus excision code when the surgeon removes a localized seizure focus rather than performing a lobectomy. Codes 61538 and 61539 distinguish whether electrocorticography is used.
What documentation supports reporting this code?
The operative report should establish that a lobe other than the temporal lobe was removed and describe the intraoperative electrocorticography.
How are other same-session procedures paid?
Under the standard multiple procedure reduction, the highest-valued procedure is paid in full and other procedures in the session are paid at 50%. The surgery has a 90-day global period.
Can an assistant or co-surgeon be reported?
Assistant-at-surgery payment may be made. Co-surgeon payment requires supporting documentation; team surgery is not permitted.
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.
6,79461534,,Removal of brain lesion,A,,22.43,16.90,NA,16.90,,9.47,48.80,48.80,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,79561535,,Remove brain electrodes,A,,12.82,12.47,NA,12.47,,5.40,30.69,30.69,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,79661536,,Removal of brain lesion,A,,36.78,21.94,NA,21.94,,15.53,74.25,74.25,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,79761537,,Removal of brain tissue,A,,35.54,19.96,NA,19.96,,15.01,70.51,70.51,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,79861538,,Removal of brain tissue,A,,38.46,21.47,NA,21.47,,16.24,76.17,76.17,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,79961539,,Removal of brain tissue,A,,33.42,20.76,NA,20.76,,14.12,68.30,68.30,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,80061540,,Removal of brain tissue,A,,30.64,19.70,NA,19.70,,12.95,63.29,63.29,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
8311502,NC,00,NORTH CAROLINA,1.000,0.933,0.639
8403302,ND,01,NORTH DAKOTA**,1.000,1.000,0.406
8515202,OH,00,OHIO,1.000,0.913,1.008
8604312,OK,00,OKLAHOMA,1.000,0.893,0.777
8702302,OR,01,PORTLAND,1.016,1.111,0.744
8802302,OR,99,REST OF OREGON,1.000,0.996,0.703
8912502,PA,01,METROPOLITAN PHILADELPHIA,1.018,1.041,1.193