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CMS RVU26D · Effective 2026-10-01

21127 Mandibular augmentation Medicare reimbursement rates in Rhode Island

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 Rhode Island.

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 Rhode Island?

Rhode Island has 1 payment locality in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the payment area shown below, using the same CMS release.

Office / nonfacility

$4086.75

1 of 1 localities have a supported rate.

Payment area: Rhode Island

One mapped payment locality.

Facility setting

$706.48

1 of 1 localities have a supported rate.

Payment area: Rhode Island

One mapped payment locality.

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.

Find 21127 in your payment locality →

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 Rhode Island, from the same CMS release.

21125

Mandibular augmentation

Prosthetic material

$2,670.62

The material distinguishes these mandibular augmentation codes: 21127 uses a bone graft, while 21125 uses prosthetic material.

21120

Chin augmentation

Augmentation without sliding osteotomy

$732.40

Code 21120 describes augmentation genioplasty at the chin. Use 21127 for bone-graft augmentation of the mandibular body or angle.

21121

Sliding genioplasty

Single-piece osteotomy

$663.78

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.

1 of 1 payment localities

Office and facility base rates · shared scale starting at $0

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How this local rate is calculated

Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for 21127 in Rhode Island.

PPRRVU2026_Oct_nonQPP.csv

1,882

Code
21127
Physician work
12.13
Practice expense
105.28
Malpractice
1.39

GPCI2026.csv

92

Locality
Rhode Island
Physician work
1.019
Practice expense
1.033
Malpractice
0.892
Office / nonfacility calculation for 21127 in Rhode Island
ComponentRVULocality factorAdjusted
Physician work12.13× 1.01912.3605
Practice expense105.28× 1.033108.7542
Malpractice1.39× 0.8921.2399
Total RVUs122.3546
Conversion factor× 33.4009

Office / nonfacility rate, Rhode Island$4086.75

Values as parsed from CMS release RVU26D, effective 2026-10-01. The amount is rounded to the nearest cent only at the end.
Explore RVUs, geographic factors and the full formula

Office / nonfacility

Office / nonfacility calculation inputs
ComponentRVULocal GPCI
Work12.131.019
Practice expense105.281.033
Malpractice1.390.892

(12.13 × 1.019 + 105.28 × 1.033 + 1.39 × 0.892) × $33.4009 = $4086.75

Facility

Facility calculation inputs
ComponentRVULocal GPCI
Work12.131.019
Practice expense7.311.033
Malpractice1.390.892

(12.13 × 1.019 + 7.31 × 1.033 + 1.39 × 0.892) × $33.4009 = $706.48

The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.

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.

RVUs for 21127PPRRVU2026_Oct_nonQPP.csv, line 1,882 (RVU26D)
Geographic factors for Rhode IslandGPCI2026.csv, line 92 (RVU26D)
Open CMS sourceHow this rate is calculatedBuild a fee sheet