CPT code 61312: Hematoma evacuation, supratentorial, extra- or subdural2026 Medicare rate & RVUs in Mississippi

In Mississippi, Medicare pays $1,812.58 for 61312 in a facility. There’s no office rate.

Check a contract rate as a % of Medicare · 61312 nationwide

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

What 61312 covers

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.

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.

How Mississippi compares for 61312

Across 109 of 109 payment localities, the facility rate for 61312 runs from $1,693.77 in Wisconsin to $2,661.27 in Miami, FL. Mississippi pays $1,812.58. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

61312 rates by state

Office rate range in each state. Select a state to see its payment localities.

See 61312 in every payment locality

How the 61312 rate is calculated

Each of 61312’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.

Payment rules and modifiers for 61312

61312 has a 90-day global period: related visits in that window are included in the surgery payment.

What modifiers do to the payment

When to use modifier 51

Codes related to 61312

Related codes aren’t interchangeable: bill the code that matches the service performed.

How 61312 has changed in Mississippi

Price 61312 for an earlier date of service

Where the Mississippi rate applies

Mississippi is a Medicare payment area, not a city. Our Census mapping connects it to 427 cities and communities in Mississippi. Some span more than one payment area; confirm with the service ZIP.

• Abbeville
• Aberdeen
• Ackerman
• Agricola
• Alcorn State University
• Algoma
• Alligator
• Amory

Browse all communities in Mississippi

Where these rates come from

FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.

CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027

Open CMS sourceHow we calculate rates