CPT code 21046: Mandibular lesion excision, intraoral osteotomy required2026 Medicare rate & RVUs in Montana

In Montana, Medicare pays $899.37 for 21046 in a facility. There’s no office rate.

Check a contract rate as a % of Medicare · 21046 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 21046 covers

This code describes operative removal of a benign cyst or tumor in the mandible when the surgeon must perform an osteotomy through an intraoral approach to reach or remove it. Oral and maxillofacial surgeons commonly perform the procedure for jaw lesions that cannot be managed by simple enucleation and curettage. The operative report should establish the lesion’s mandibular location and explain the osteotomy and excision performed.

Choose this code based on the documented surgical work and approach, not lesion size alone. A simpler enucleation-and-curettage procedure may fit 21040, while an extraoral osteotomy or resection may point to 21047. The 90-day global period includes 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 multiple procedure reduction. Modifier 50 is inappropriate for this code. Assistant-at-surgery and co-surgeon payment require supporting documentation; 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 21046

Across 109 of 109 payment localities, the facility rate for 21046 runs from $817.66 in Arkansas to $1,128.97 in Alaska. Montana pays $899.37. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

21046 rates by state

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

See 21046 in every payment locality

How the 21046 rate is calculated

Each of 21046’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 21046

21046 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 21046

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

How 21046 has changed in Montana

Price 21046 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