CPT code 61583: Craniofacial approach, middle fossa, intradural2026 Medicare rate & RVUs in Mississippi

In Mississippi, Medicare pays $2,628.86 for 61583 in a facility. There’s no office rate.

Check a contract rate as a % of Medicare · 61583 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 61583 covers

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.

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 61583

Across 109 of 109 payment localities, the facility rate for 61583 runs from $2,511.55 in Arkansas to $3,755.94 in Miami, FL. Mississippi pays $2,628.86. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

61583 rates by state

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

See 61583 in every payment locality

How the 61583 rate is calculated

Each of 61583’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 61583

61583 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 61583

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

How 61583 has changed in Mississippi

Price 61583 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