CPT code 21630: Sternum resection, radical resection2026 Medicare rate & RVUs in Montana

In Montana, Medicare pays $1,170.47 for 21630 in a facility. There’s no office rate.

Check a contract rate as a % of Medicare · 21630 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 21630 covers

CPT 21630 describes a radical operation to remove the sternum. It is typically performed by a thoracic or surgical oncologist in an operating room when disease, such as a tumor involving the sternum, requires extensive resection. The operative report should establish the resection’s radical extent; the diagnosis alone does not distinguish this service from partial sternum removal or debridement.

Select the code from the documented operation and structures removed, distinguishing radical resection from partial sternectomy. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% multiple-procedure reduction. Modifier 50 is inappropriate for this code. An assistant at surgery may be paid; co-surgeon payment requires supporting documentation, and team surgery is 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 Montana compares for 21630

Across 109 of 109 payment localities, the facility rate for 21630 runs from $1,053.83 in Arkansas to $1,458.92 in Alaska. Montana pays $1,170.47. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

21630 rates by state

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

See 21630 in every payment locality

How the 21630 rate is calculated

Each of 21630’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 21630

21630 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 21630

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

How 21630 has changed in Montana

Price 21630 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