No office rate
62120 is for skull-base encephalocele repair by an extradural approach. 62100 is selected when the operative target is closure of a cerebrospinal fluid leak.
On this page
CMS RVU26D · Effective 2026-10-01
62100 Brain fluid leak repair Medicare reimbursement rates in Minnesota
Reports operative repair of an intracranial cerebrospinal fluid leak when a neurosurgeon closes the responsible dural defect through a cranial approach. Compare 62100 office and facility rates across CMS payment localities in Minnesota.
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 62100 in Minnesota?
Minnesota 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
$1294.38
1 of 1 localities have a supported rate.
Payment area: Minnesota
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 62100: Craniotomy for cerebrospinal fluid leak repair
Reports operative repair of an intracranial cerebrospinal fluid leak when a neurosurgeon closes the responsible dural defect through a cranial approach.
A neurosurgeon uses a cranial opening to reach and repair a dural defect responsible for cerebrospinal fluid leakage. The service may be needed for a persistent leak after cranial trauma or prior surgery, or when an intracranial defect is associated with an encephalocele. These repairs are typically performed in a hospital operating room. The operative report should establish the leak and describe the defect, cranial approach, and repair performed.
Select this code when the operation is directed at closing the cerebrospinal fluid leak, rather than repairing a skull defect alone or treating a separate skull-base encephalocele procedure. 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 the others are subject to the standard 50% reduction. An assistant at surgery may be paid; co-surgeon payment requires supporting documentation, and team surgery is not permitted.
CMS billing rules for 62100
- 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 RVU22.94 · 53%
- Practice expense (office) RVU13.23 · 30%
- Malpractice RVU7.43 · 17%
268
Medicare services in 2024 · #4084 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.
62100 compared with similar codes
Office rates for Minnesota, from the same CMS release.
No office rate
62121 describes skull-base encephalocele repair by an intradural approach; 62100 describes operative repair of a cerebrospinal fluid leak.
No office rate
62140 is cranioplasty for a skull defect of 5 cm or less. Use 62100 when the operation repairs the dural defect responsible for a cerebrospinal fluid leak.
No office rate
62141 is cranioplasty for a skull defect larger than 5 cm. The distinction from 62100 is whether the surgery addresses the skull defect or repairs the cerebrospinal fluid leak.
Compare 62100 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
Minnesota →
Office / nonfacility
Unavailable
Facility
$1294.38
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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 62100 in Minnesota.
PPRRVU2026_Oct_nonQPP.csv
6,910
- Code
- 62100
- Physician work
- 22.94
- Practice expense
- 13.23
- Malpractice
- 7.43
GPCI2026.csv
66
- Locality
- Minnesota
- Physician work
- 1.000
- Practice expense
- 1.029
- Malpractice
- 0.296
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 22.94 | × 1.000 | 22.9400 |
| Practice expense | 13.23 | × 1.029 | 13.6137 |
| Malpractice | 7.43 | × 0.296 | 2.1993 |
| Total RVUs | 38.7529 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Minnesota$1294.38
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 22.94 | 1 |
| Practice expense | 13.23 | 1.029 |
| Malpractice | 7.43 | 0.296 |
(22.94 × 1 + 13.23 × 1.029 + 7.43 × 0.296) × $33.4009 = $1294.38
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.
62100 billing questions
When should this code be chosen over a skull-defect repair code?
Use 62100 when the operative objective is closure of a cerebrospinal fluid leak through repair of its dural defect. A procedure directed at repairing a skull defect, rather than the leak, may fit a cranioplasty code instead.
How does this differ from codes 62120 and 62121?
Those codes describe skull-base encephalocele repair by extradural or intradural approach. Choose based on the operation actually performed; 62100 is for operative repair of a cerebrospinal fluid leak.
What documentation supports reporting 62100?
The operative note should identify the cerebrospinal fluid leak, the dural defect being repaired, the cranial approach, and the repair performed.
How does the 90-day global period affect postoperative billing?
The day-before preoperative visit and 90 days of related postoperative care are included in the global period. CMS assigns this code a 90-day global period.
How are multiple procedures in the same session paid?
The highest-valued procedure is paid in full, and other procedures in the session are subject to the standard multiple procedure reduction.
Can an assistant or co-surgeon be reported?
An assistant at surgery may be paid. Co-surgeon payment requires supporting documentation, while 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.
6,90762000,,Treat skull fracture,A,,13.58,11.86,NA,11.86,,5.72,31.16,31.16,0,090,0.11,0.76,0.13,2,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,90862005,,Treat skull fracture,A,,17.19,13.38,NA,13.38,,7.26,37.83,37.83,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,90962010,,Treatment of head injury,A,,20.89,15.74,NA,15.74,,8.81,45.44,45.44,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,91062100,,Repair brain fluid leakage,A,,22.94,13.23,NA,13.23,,7.43,43.60,43.60,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,91162115,,Reduction of skull defect,A,,22.34,18.57,NA,18.57,,9.42,50.33,50.33,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,91262117,,Reduction of skull defect,A,,27.64,17.73,NA,17.73,,11.70,57.07,57.07,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,91362120,,Repair skull cavity lesion,A,,23.98,30.10,NA,30.10,,10.13,64.21,64.21,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6314212,MA,99,REST OF MASSACHUSETTS,1.016,1.053,0.797
6408202,MI,01,DETROIT,1.000,0.965,1.686
6508202,MI,99,REST OF MICHIGAN,1.000,0.913,1.129
6606202,MN,00,MINNESOTA,1.000,1.029,0.296
6707302,MS,00,MISSISSIPPI,1.000,0.861,0.739
6805302,MO,02,METROPOLITAN KANSAS CITY,1.000,0.939,0.977
6905302,MO,01,METROPOLITAN ST. LOUIS,1.000,0.952,1.002