No office rate
The key distinction is intraoperative electrocorticography: 61543 is for focus excision without it, while 61544 is for focus excision with it.
On this page
CMS RVU26D · Effective 2026-10-01
61543 Seizure focus excision Medicare reimbursement rates in Michigan
Reports craniotomy to remove a brain area identified as an epileptogenic focus when intraoperative electrocorticography is not performed. Compare 61543 office and facility rates across CMS payment localities in Michigan.
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 61543 in Michigan?
Michigan has 2 payment localities in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the 2 payment areas shown below, using the same CMS release.
Office / nonfacility
No supported rate
Facility setting
$2108.08–$2382.20
2 of 2 localities have a 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.
Neurosurgery
About 61543: Epileptogenic focus excision without electrocorticography
Reports craniotomy to remove a brain area identified as an epileptogenic focus when intraoperative electrocorticography is not performed.
A neurosurgeon uses a craniotomy to remove brain tissue identified as the source of seizures. This operation is used in epilepsy surgery when the treatment plan calls for excision of a discrete epileptogenic focus and electrocorticography is not performed during the operation. The operative report should establish the seizure-related target and describe the tissue removed; a general brain lesion excision or a planned lobectomy may fit a different code.
Report one unit for the qualifying operation. Documentation should distinguish focus excision from lobectomy and state whether intraoperative electrocorticography was performed. CMS assigns 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 other procedures are subject to the standard multiple-procedure reduction. An assistant at surgery may be paid. Co-surgeon payment requires supporting documentation, and team surgery is not permitted.
CMS billing rules for 61543
- 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 RVU30.53 · 48%
- Practice expense (office) RVU19.75 · 31%
- Malpractice RVU12.89 · 20%
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.
61543 compared with similar codes
Office rates for Michigan, from the same CMS release.
No office rate
61534 describes temporal lobectomy without intraoperative electrocorticography. Use 61543 for excision of an epileptogenic focus when the operation is not documented as a temporal lobectomy.
No office rate
61545 is for excision of a brain tumor. Choose 61543 when the operative target is an epileptogenic focus rather than a tumor.
Compare 61543 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.
2 of 2 payment localities
Detroit →
Office / nonfacility
Unavailable
Facility
$2382.20
Rest Of Michigan →
Office / nonfacility
Unavailable
Facility
$2108.08
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61543 billing questions
How does this code differ from 61544?
Both describe excision of an epileptogenic focus. Use 61543 when intraoperative electrocorticography is not performed; 61544 represents the corresponding procedure with electrocorticography.
Is this the right code for a temporal lobectomy?
Not when the operation is documented as a temporal lobectomy. Select the lobectomy code that matches the procedure and whether intraoperative electrocorticography was performed.
What documentation supports reporting 61543?
The operative report should identify the epileptogenic focus, describe the brain tissue excised, and support that intraoperative electrocorticography was not performed.
Can an assistant or co-surgeon be reported?
CMS allows payment for an assistant at surgery. Co-surgeon payment requires supporting documentation; team surgery is not permitted.
How does the 90-day global period affect postoperative billing?
The global period includes the day-before preoperative visit and 90 days of related postoperative care. Those included services are part of the surgical global package.
What happens when another procedure is performed in the same session?
CMS pays the highest-valued procedure in full and applies the standard multiple-procedure reduction to the other procedures.
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.
6,79961539,,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
6,80161541,,Incision of brain tissue,A,,30.17,19.62,NA,19.62,,12.74,62.53,62.53,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,80261543,,Removal of brain tissue,A,,30.53,19.75,NA,19.75,,12.89,63.17,63.17,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,80361544,,Remove & treat brain lesion,A,,26.68,17.33,NA,17.33,,11.28,55.29,55.29,0,090,0.11,0.76,0.13,2,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,80461545,,Excision of brain tumor,A,,45.27,27.50,NA,27.50,,19.10,91.87,91.87,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,80561546,,Removal of pituitary gland,A,,32.60,20.47,NA,20.47,,13.77,66.84,66.84,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00