CPT code 22840: Spinal fixation, posterior, nonsegmental2026 Medicare rate & RVUs in Montana

In Montana, Medicare pays $668.10 for 22840 in a facility. There’s no office rate.

Check a contract rate as a % of Medicare · 22840 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 22840 covers

This add-on represents posterior fixation that stabilizes the spine without segmental attachment at each vertebral level, such as a construct spanning one interspace. It may be used during instrumented spinal fusion or another primary spine operation when posterior stabilization is performed. Orthopedic spine surgeons and neurosurgeons commonly place this hardware in an operating room, including for cases involving spinal instability or deformity.

Report 22840 with the primary procedure performed in the same operative session; it is not a standalone service. The operative report should identify the posterior fixation method, the vertebral levels or interspace spanned, and how the construct differs from segmental fixation. CMS treats this as an add-on code: payment is made within the primary procedure’s global period. The segmental extent and fixation pattern help distinguish it from codes for longer posterior segmental constructs.

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 Montana compares for 22840

Across 109 of 109 payment localities, the facility rate for 22840 runs from $575.78 in Wisconsin to $865.91 in Miami, FL. Montana pays $668.10. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

22840 rates by state

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

See 22840 in every payment locality

How the 22840 rate is calculated

Each of 22840’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 22840

The CMS indicators that decide how 22840 is paid alongside other services.

What modifiers do to the payment

When to use modifier 80

Codes related to 22840

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

How 22840 has changed in Montana

Price 22840 for an earlier date of service

Where the Montana rate applies

Montana is a Medicare payment area, not a city. Our Census mapping connects it to 497 cities and communities in Montana. Some span more than one payment area; confirm with the service ZIP.

• Absarokee
• Acton
• Alberton
• Alder
• Alzada
• Amsterdam
• Anaconda-Deer Lodge County
• Antelope

Browse all communities in Montana

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