No office rate
Choose 61313 when the hematoma is within brain tissue in the supratentorial compartment. This code is for an extradural or subdural collection above the tentorium.
On this page
CMS RVU26D · Effective 2026-10-01
61312 Hematoma evacuation Medicare reimbursement rates in Mississippi
Reports operative evacuation of an extradural or subdural hematoma above the tentorium through a craniotomy or craniectomy. Compare 61312 office and facility rates across CMS payment localities in Mississippi.
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 61312 in Mississippi?
Mississippi 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
$1812.58
1 of 1 localities have a supported rate.
Payment area: Mississippi
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 61312: Supratentorial extra- or subdural hematoma evacuation
Reports operative evacuation of an extradural or subdural hematoma above the tentorium through a craniotomy or craniectomy.
A neurosurgeon uses a craniotomy or craniectomy to reach and remove an extradural or subdural hematoma in the supratentorial compartment. The service is typically performed in a hospital operating room for conditions such as an acute intracranial bleed requiring surgical evacuation. The code identifies both the hematoma’s location and its compartment; it is not the code for an intracerebral clot or a hematoma below the tentorium.
The operative report should establish the supratentorial site, whether the collection is extradural or subdural, and that it was evacuated. The surgical approach and routine work integral to reaching and closing the operative site are part of the service. This major surgery includes the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and other procedures 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. Modifier 50 is inappropriate for this descriptor and anatomy.
CMS billing rules for 61312
- 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 RVU29.42 · 49%
- Practice expense (office) RVU18.25 · 30%
- Malpractice RVU12.36 · 21%
9.6K
Medicare services in 2024 · #1489 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.
61312 compared with similar codes
Office rates for Mississippi, from the same CMS release.
No office rate
Both codes describe extradural or subdural hematoma evacuation, but 61314 is for the infratentorial compartment; this code is supratentorial.
No office rate
61322 describes cranial decompression without lobectomy, rather than evacuation of a specifically identified supratentorial extradural or subdural hematoma.
Compare 61312 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
Mississippi →
Office / nonfacility
Unavailable
Facility
$1812.58
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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 61312 in Mississippi.
PPRRVU2026_Oct_nonQPP.csv
6,759
- Code
- 61312
- Physician work
- 29.42
- Practice expense
- 18.25
- Malpractice
- 12.36
GPCI2026.csv
67
- Locality
- Mississippi
- Physician work
- 1.000
- Practice expense
- 0.861
- Malpractice
- 0.739
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 29.42 | × 1.000 | 29.4200 |
| Practice expense | 18.25 | × 0.861 | 15.7133 |
| Malpractice | 12.36 | × 0.739 | 9.1340 |
| Total RVUs | 54.2673 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Mississippi$1812.58
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 29.42 | 1 |
| Practice expense | 18.25 | 0.861 |
| Malpractice | 12.36 | 0.739 |
(29.42 × 1 + 18.25 × 0.861 + 12.36 × 0.739) × $33.4009 = $1812.58
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.
61312 billing questions
How does this code differ from 61313?
Use this code for a supratentorial extradural or subdural collection. Code 61313 describes evacuation of a hematoma within the brain tissue.
Can the craniotomy or craniectomy be reported separately?
The operative access is part of the hematoma evacuation service. Do not separately report routine access or closure as a second procedure.
Should modifier 50 be appended?
No. Modifier 50 is inappropriate for this code’s descriptor and anatomy.
How is the 90-day global period handled?
The day-before preoperative visit and 90 days of related postoperative care are included in the major-surgery 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.
What happens when another procedure is performed in the same session?
The highest-valued procedure is paid in full, while other procedures are subject to the standard multiple-procedure reduction.
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.
6,75661253,,Burr hole treph ittl uni/bi,A,,13.15,11.20,NA,11.20,,5.54,29.89,29.89,0,090,0.11,0.76,0.13,2,2,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,75761304,,Crnec/crnot expl supratntorl,A,,22.82,15.82,NA,15.82,,9.53,48.17,48.17,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,75861305,,Crnec/crnot expl infratntorl,A,,27.92,18.95,NA,18.95,,11.81,58.68,58.68,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,75961312,,Crnec/crnot sttl xdrl/sdrl,A,,29.42,18.25,NA,18.25,,12.36,60.03,60.03,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,76061313,,Crnec/crnot sttl icere,A,,27.39,19.42,NA,19.42,,11.50,58.31,58.31,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,76161314,,Crnec/crnot ittl xdrl/sdrl,A,,25.25,17.69,NA,17.69,,10.62,53.56,53.56,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,76261315,,Crnec/crnot ittl ntracereblr,A,,28.91,19.26,NA,19.26,,12.22,60.39,60.39,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
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
7005302,MO,99,REST OF MISSOURI,1.000,0.862,0.974