$2,709.79–$3,033.03
The material distinguishes these mandibular augmentation codes: 21127 uses a bone graft, while 21125 uses prosthetic material.
On this page
CMS RVU26D · Effective 2026-10-01
21127 Mandibular augmentation Medicare reimbursement rates in Massachusetts
Reports surgical augmentation of the mandibular body or angle using a bone graft to address deficient jaw size or contour. Compare 21127 office and facility rates across CMS payment localities in Massachusetts.
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
What does Medicare pay for 21127 in Massachusetts?
Massachusetts has 2 payment localities in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the 2 payment areas shown below, using the same CMS release.
Office / nonfacility
$4151.46–$4661.72
2 of 2 localities have a supported rate.
Facility setting
$705.74–$754.61
2 of 2 localities have a supported rate.
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Oral and maxillofacial surgery
About 21127: Mandibular augmentation with bone graft
Reports surgical augmentation of the mandibular body or angle using a bone graft to address deficient jaw size or contour.
This procedure adds bone graft material to the mandibular body or angle to augment jaw size or contour. Oral and maxillofacial, plastic, or craniofacial surgeons may perform it as a reconstructive operation in a hospital or other surgical setting. The operative report should identify the mandibular site, the reason for augmentation, and the graft used and its placement.
Choose this code when the augmentation is performed with a bone graft, rather than prosthetic material or a chin osteotomy. The service has a 90-day global period: the day-before preoperative visit and 90 days of related postoperative care are included. 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% reduction. Assistant-at-surgery services may be paid; co-surgeon payment requires supporting documentation, and team surgery is not permitted.
CMS billing rules for 21127
- Global period
- Major surgery with a 90-day global period: the day-before preoperative visit and 90 days of related postoperative care are included.
- Multiple procedures
- Standard multiple procedure reduction: the highest-valued procedure is paid in full and others at 50% when performed in the same session.
- Bilateral procedures
- Bilateral adjustment does not apply; the descriptor or anatomy makes modifier 50 inappropriate.
- Assistant at surgery
- Assistant at surgery may be paid.
- Co-surgeons
- Co-surgeons paid only with supporting documentation.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU12.13 · 10%
- Practice expense (office) RVU105.28 · 89%
- Malpractice RVU1.39 · 1%
75
Medicare services in 2024 · #5101 by national volume
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.
21127 compared with similar codes
Office rates for Massachusetts, from the same CMS release.
$739.36–$819.50
Code 21120 describes augmentation genioplasty at the chin. Use 21127 for bone-graft augmentation of the mandibular body or angle.
$667.59–$728.35
Code 21121 is a sliding genioplasty that repositions the chin; 21127 augments the mandibular body or angle with a bone graft.
Compare 21127 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
2 of 2 payment localities
Metropolitan Boston →
Office / nonfacility
$4661.72
Facility
$754.61
Rest Of Massachusetts →
Office / nonfacility
$4151.46
Facility
$705.74
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21127 billing questions
How do I distinguish this code from 21125?
Use 21127 for mandibular augmentation with a bone graft. Code 21125 describes augmentation using prosthetic material.
Is this the code for chin augmentation?
Not when the service is a genioplasty focused on the chin. Code 21120 is for genioplasty augmentation; 21127 concerns augmentation of the mandibular body or angle with a bone graft.
What should the operative report document?
Document the mandibular body or angle being augmented, the clinical reason for the augmentation, and the bone graft and its placement. These details support selection over prosthetic augmentation or a chin osteotomy.
What postoperative care is included?
The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.
How is this handled with other procedures in the same session?
The highest-valued procedure is paid in full, and other procedures are subject to the standard multiple procedure reduction. Assistant-at-surgery payment may be available; co-surgeon payment requires supporting documentation.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
1,87921122,,Geniop sldg osteot 2/>,A,,8.49,10.90,NA,10.90,,1.57,20.96,20.96,0,090,0.10,0.69,0.21,2,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,88021123,,Geniop sldg augmentation,A,,11.06,10.62,NA,10.62,,1.61,23.29,23.29,0,090,0.10,0.69,0.21,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,88121125,,Augmentation mndblr prostc,A,,10.53,65.97,,6.39,,1.21,77.71,18.13,0,090,0.10,0.69,0.21,2,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,88221127,,Augmentation mndblr b1 grf,A,,12.13,105.28,,7.31,,1.39,118.80,20.83,0,090,0.10,0.69,0.21,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,88321137,,Rdctj forehead cntrg only,A,,9.98,8.68,NA,8.68,,1.85,20.51,20.51,0,090,0.10,0.69,0.21,2,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,88421138,,Rdctj forehead cntrg&prostc,A,,12.55,9.86,NA,9.86,,2.34,24.75,24.75,0,090,0.10,0.69,0.21,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,88521139,,Rdctj forehead cntrg&setback,A,,14.64,12.11,NA,12.11,,2.72,29.47,29.47,0,090,0.10,0.69,0.21,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00