No office rate
Both use a craniofacial route to the middle cranial fossa. 61583 is the intradural approach; 61582 is extradural.
On this page
CMS RVU26D · Effective 2026-10-01
61583 Craniofacial approach Medicare reimbursement rates in Minnesota
Reports a craniofacial route into the middle cranial fossa with intradural access, including elevation of the temporal lobe when needed. Compare 61583 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 61583 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
$2595.70
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 61583: Intradural middle fossa craniofacial approach
Reports a craniofacial route into the middle cranial fossa with intradural access, including elevation of the temporal lobe when needed.
This service provides a craniofacial route to the middle cranial fossa for intracranial work requiring intradural access. The operative exposure includes elevation of the temporal lobe when needed. Neurosurgeons commonly perform the intracranial portion with a craniofacial, otolaryngology, or reconstructive surgeon involved in the approach, depending on the case. It is generally performed in a hospital operating room for skull-base lesions or other pathology requiring this route.
Choose the code from the documented operative route and whether the work enters the dura, not from the lesion diagnosis alone. The operative report should describe the craniofacial exposure, middle-fossa access, and intradural work. This major surgery has a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. For same-session multiple procedures, the highest-valued procedure is paid in full and other procedures at 50%. Modifier 50 is inappropriate. Assistant-at-surgery payment may be available; co-surgeon payment requires supporting documentation, and team surgery is permitted.
CMS billing rules for 61583
- 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 permitted.
Where the value comes from
- Work RVU37.54 · 43%
- Practice expense (office) RVU34.62 · 40%
- Malpractice RVU15.37 · 18%
259
Medicare services in 2024 · #4109 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.
61583 compared with similar codes
Office rates for Minnesota, from the same CMS release.
No office rate
Both are intradural craniofacial approaches, but 61581 accesses the anterior cranial fossa and 61583 the middle cranial fossa.
No office rate
61590 describes an infratemporal approach to the middle cranial fossa. Use 61583 when the operative route is craniofacial instead.
Compare 61583 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
$2595.70
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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 61583 in Minnesota.
PPRRVU2026_Oct_nonQPP.csv
6,824
- Code
- 61583
- Physician work
- 37.54
- Practice expense
- 34.62
- Malpractice
- 15.37
GPCI2026.csv
66
- Locality
- Minnesota
- Physician work
- 1.000
- Practice expense
- 1.029
- Malpractice
- 0.296
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 37.54 | × 1.000 | 37.5400 |
| Practice expense | 34.62 | × 1.029 | 35.6240 |
| Malpractice | 15.37 | × 0.296 | 4.5495 |
| Total RVUs | 77.7135 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Minnesota$2595.70
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 37.54 | 1 |
| Practice expense | 34.62 | 1.029 |
| Malpractice | 15.37 | 0.296 |
(37.54 × 1 + 34.62 × 1.029 + 15.37 × 0.296) × $33.4009 = $2595.70
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.
61583 billing questions
How does 61583 differ from 61582?
Both describe a craniofacial route to the middle cranial fossa. Choose 61583 when the approach is intradural; 61582 describes the extradural approach.
How does 61583 differ from 61581?
61583 is for a middle cranial fossa approach, while 61581 is for an anterior cranial fossa approach. The operative site and route determine the distinction.
Does 61583 include removal of the lesion?
The code describes the craniofacial intradural approach and exposure. Report a definitive lesion procedure separately only when that distinct service is supported and separately reportable.
Can modifier 50 be reported?
No. The CMS bilateral adjustment does not apply to this code, and modifier 50 is inappropriate for the described anatomy or service.
What documentation supports co-surgeon or team-surgery reporting?
Document each surgeon's distinct role and the work performed in the operative report. Co-surgeon payment requires supporting documentation; team surgery is permitted.
What postoperative care is included?
The 90-day global includes the day-before preoperative visit and 90 days of related postoperative care.
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.
6,82161580,,Craniofacial approach skull,A,,33.65,25.75,NA,25.75,,7.02,66.42,66.42,0,090,0.11,0.76,0.13,2,1,1,1,2,9,,33.4009,09,0,99,0.00,0.00,0.00
6,82261581,,Craniofacial approach skull,A,,38.15,26.93,NA,26.93,,5.57,70.65,70.65,0,090,0.11,0.76,0.13,2,1,1,2,2,9,,33.4009,09,0,99,0.00,0.00,0.00
6,82361582,,Craniofacial approach skull,A,,34.26,44.35,NA,44.35,,13.53,92.14,92.14,0,090,0.11,0.76,0.13,2,0,2,1,2,9,,33.4009,09,0,99,0.00,0.00,0.00
6,82461583,,Craniofacial approach skull,A,,37.54,34.62,NA,34.62,,15.37,87.53,87.53,0,090,0.11,0.76,0.13,2,0,2,1,2,9,,33.4009,09,0,99,0.00,0.00,0.00
6,82561584,,Orbitocranial approach/skull,A,,36.76,33.67,NA,33.67,,14.34,84.77,84.77,0,090,0.11,0.76,0.13,2,1,2,1,2,9,,33.4009,09,0,99,0.00,0.00,0.00
6,82661585,,Orbitocranial approach/skull,A,,41.51,38.43,NA,38.43,,17.52,97.46,97.46,0,090,0.11,0.76,0.13,2,1,2,1,2,9,,33.4009,09,0,99,0.00,0.00,0.00
6,82761586,,Resect nasopharynx skull,A,,26.79,40.91,NA,40.91,,11.32,79.02,79.02,0,090,0.11,0.76,0.13,2,0,2,1,2,9,,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