CPT code 21120: Chin augmentation, augmentation without sliding osteotomy2026 Medicare rate & RVUs in Alabama

In Alabama, Medicare pays $637.27 for 21120 in the office and $438.83 when it’s performed in a hospital or facility.

Check a contract rate as a % of Medicare · 21120 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 21120 covers

This procedure increases chin projection or contour by adding material to the chin, such as an implant or graft. It is typically performed by an oral and maxillofacial surgeon, plastic surgeon, or facial plastic surgeon to address a retrusive or under-projected chin. The operative work is augmentation of the chin itself, rather than repositioning a segment of the chin bone through a sliding osteotomy.

Select the code when the operative report supports chin augmentation and identifies the material and technique. Distinguish it from sliding genioplasty codes, which involve osteotomy and repositioning, and from mandibular augmentation directed at a broader jaw area. Medicare assigns 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 one session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Assistant-at-surgery payment is restricted by statute; co-surgeons are paid only with 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 Alabama compares for 21120

Across 109 of 109 payment localities, the office rate for 21120 runs from $627.40 in Arkansas to $948.72 in San Benito County, CA. Alabama pays $637.27. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

21120 rates by state

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

See 21120 in every payment locality

How the 21120 rate is calculated

Each of 21120’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 21120

21120 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 21120

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

How 21120 has changed in Alabama

Price 21120 for an earlier date of service

Where the Alabama rate applies

Alabama is a Medicare payment area, not a city. Our Census mapping connects it to 595 cities and communities in Alabama. Some span more than one payment area; confirm with the service ZIP.

• Abanda
• Abbeville
• Adamsville
• Addison
• Akron
• Alabaster
• Albertville
• Alexander City

Browse all communities in Alabama

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