CPT code 21700: Scalene division, without cervical rib resection2026 Medicare rate & RVUs in Mississippi

In Mississippi, Medicare pays $308.30 for 21700 in a facility. There’s no office rate.

Check a contract rate as a % of Medicare · 21700 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 21700 covers

The surgeon divides scalene muscle fibers in the neck to relieve compression associated with thoracic outlet syndrome, such as pressure affecting the brachial plexus or subclavian vessels. The operation is performed by a surgeon, commonly in a hospital operating room. This code describes the scalene release without removal of a cervical rib; a rib-resection operation falls under a different code in the same family.

Choose the code from the operation performed, documenting the indication, side, scalene muscles addressed, and whether a cervical rib was removed. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. For multiple procedures in one session, the highest-valued procedure is paid in full and others at 50%. Bilateral reporting with modifier 50 is paid at 150%. Assistant-at-surgery payment may be made; co-surgeons and team surgery are not 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 21700

Across 109 of 109 payment localities, the facility rate for 21700 runs from $292.92 in Wisconsin to $416.34 in Alaska. Mississippi pays $308.30. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

21700 rates by state

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

See 21700 in every payment locality

How the 21700 rate is calculated

Each of 21700’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 21700

21700 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 50

Codes related to 21700

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

How 21700 has changed in Mississippi

Price 21700 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