CPT code 21145: LeFort I reconstruction, single piece with bone graft2026 Medicare rate & RVUs in Montana

In Montana, Medicare pays $1,390.59 for 21145 in a facility. There’s no office rate.

Check a contract rate as a % of Medicare · 21145 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 21145 covers

This operation repositions the maxilla through a LeFort I osteotomy as one segment and includes bone grafting as part of the reconstruction. Oral and maxillofacial, plastic, or craniofacial surgeons perform it in an operating room for selected maxillary deformities, such as dentofacial disproportion or malocclusion requiring maxillary advancement or repositioning. The one-piece designation reflects the maxilla being mobilized as a single segment.

Select 21145 when the reconstruction is one piece and includes grafting; the related LeFort I codes distinguish reconstructions without grafting and those divided into multiple pieces. The operative report should establish the LeFort I approach, the number of maxillary segments, the repositioning performed, and use of bone graft. CMS assigns a 90-day global period, including the day-before preoperative visit and related postoperative care. For multiple procedures in one session, the highest-valued procedure is paid in full and others at 50%. Do not append modifier 50; CMS treats this as a single midface reconstruction. An assistant at surgery may be paid, but co-surgeon and team-surgery payment 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 Montana compares for 21145

Across 109 of 109 payment localities, the facility rate for 21145 runs from $1,265.79 in Arkansas to $1,762.30 in Alaska. Montana pays $1,390.59. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

21145 rates by state

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

See 21145 in every payment locality

How the 21145 rate is calculated

Each of 21145’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 21145

21145 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 21145

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

How 21145 has changed in Montana

Price 21145 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