The distinguishing factor is the bone involved: 21032 describes maxillary exostosis removal; 21031 describes mandibular exostosis removal.
On this page
CMS RVU26D · Effective 2026-10-01
21032 Maxillary exostosis Medicare reimbursement rates in Illinois
Reports surgical removal of a bony prominence of the maxilla, such as a palatal torus, when excision is performed. Compare 21032 office and facility rates across CMS payment localities in Illinois.
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 21032 in Illinois?
Illinois has 4 payment localities in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the 4 payment areas shown below, using the same CMS release.
Office / nonfacility
$369.20–$404.44
4 of 4 localities have a supported rate.
Facility setting
$241.73–$264.13
4 of 4 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.
Where 21032 pays more and less in Illinois
4 payment localities
$369.20 to $404.44
Oral surgery
About 21032: Excision of maxillary exostosis
Reports surgical removal of a bony prominence of the maxilla, such as a palatal torus, when excision is performed.
This procedure removes a localized bony prominence from the upper jaw. A typical example is excision of a palatal torus that interferes with a denture or is repeatedly traumatized. An oral and maxillofacial surgeon or another qualified surgeon may perform it in an office-based surgical setting or a facility, using an incision to expose and remove the excess bone.
Report 21032 when the treated finding is an exostosis of the maxilla; document its location, the diagnosis, and the work performed. The service has a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% multiple-procedure reduction. Modifier 50 is inappropriate for this code. Medicare does not pay an assistant at surgery, and co-surgeon and team-surgery billing are not permitted.
CMS billing rules for 21032
- 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
- Statutory restriction: assistant at surgery is not paid.
- Co-surgeons
- Co-surgeons not permitted.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU3.26 · 28%
- Practice expense (office) RVU7.80 · 68%
- Malpractice RVU0.43 · 4%
78
Medicare services in 2024 · #5073 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.
21032 compared with similar codes
Office rates for Illinois, from the same CMS release.
Use 21032 for excision of a maxillary exostosis. 21029 describes contouring a facial bone lesion.
Use 21030 when excising a benign tumor of the maxilla or zygoma; 21032 is for removal of a maxillary exostosis.
21026 describes excision of facial bone generally. 21032 specifically identifies removal of a maxillary exostosis.
Compare 21032 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.
4 of 4 payment localities
Chicago →
Office / nonfacility
$404.44
Facility
$264.13
East St. Louis →
Office / nonfacility
$377.50
Facility
$249.05
Rest Of Illinois →
Office / nonfacility
$369.20
Facility
$241.73
Suburban Chicago →
Office / nonfacility
$402.66
Facility
$259.28
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21032 billing questions
How is 21032 different from 21031?
21032 is for an exostosis of the maxilla, including a palatal torus. 21031 is for an exostosis of the mandible.
Can modifier 50 be used for exostoses on both sides?
No. CMS identifies bilateral adjustment as inappropriate for this code. Document the treated maxillary site or sites and report the service according to the applicable coding rules.
What documentation supports 21032?
Document that the bony prominence is in the maxilla, its clinical diagnosis and location, and the excision performed. The record should distinguish an exostosis from a tumor or another bone lesion.
Are related postoperative visits included?
Yes. The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.
Can an assistant or co-surgeon be billed?
Medicare does not pay an assistant at surgery for 21032. Co-surgeon and team-surgery billing are not permitted.
What happens when another procedure is performed in the same session?
The highest-valued procedure is paid in full, and other procedures are subject to the standard multiple-procedure reduction.
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.
