CPT code 23120: Clavicle resection, partial claviculectomy2026 Medicare rate & RVUs in Missouri
Report partial claviculectomy when a surgeon removes part of the clavicle, commonly the distal end for persistent acromioclavicular joint symptoms.
CMS doesn’t publish an office rate for 23120 in Missouri.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
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What 23120 covers
An orthopedic surgeon typically removes a portion of the clavicle during an operative procedure. A common setting is open distal clavicle excision for symptomatic acromioclavicular joint arthritis, sometimes called a Mumford procedure. The operative report should make clear which portion of the clavicle was removed and the clinical reason for the resection.
Select this code for partial clavicle removal, rather than complete clavicle removal or a procedure focused on another bone or a specific lesion. Document the side, operative findings, extent of bone removal, and procedure performed. Medicare assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. For multiple procedures in one session, the highest-valued procedure is paid in full and others at 50%. Bilateral reporting with modifier 50 is paid at 150%. Assistant-at-surgery payment may be made; co-surgeon payment requires 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.
Where 23120 pays more and less in Missouri
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
| Payment locality | Office | Facility |
|---|---|---|
| Metropolitan Kansas City, MO | Unavailable | $546.92 |
| Metropolitan St. Louis, MO | Unavailable | $551.73 |
| Rest of Missouri | Unavailable | $525.64 |
How the 23120 rate is calculated
Each of 23120’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.
How the rate is built · 23120
RVUs × geographic indexes × conversion factor
Work7.21
7.21 RVUs× 1.000 GPCI
Practice expense8.22
8.22 RVUs× 1.000 GPCI
Malpractice1.48
1.48 RVUs× 1.000 GPCI
Adjusted RVUs
16.9100
Conversion factor
$33.4009
Medicare rate
$564.81
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 23120
23120 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 23120
Clavicle resection, partial claviculectomy
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 090 | Major surgery: the day before, the day of, and 90 days after are included. |
| Multiple procedures | 2 | Standard reduction: highest-valued procedure at 100%, others at 50%. |
| Bilateral (modifier 50) | 1 | Bilateral with modifier 50 pays 150% of the fee schedule amount. |
| Assistant at surgery (80/81/82/AS) | 2 | Paid. |
| Co-surgeons (62) | 1 | Permitted with supporting documentation. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
| Split (54/55/56) | 0.10/0.69/0.21 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 23120
Clavicle resection, partial claviculectomy
90-day global period ends
Dec 30, 2026
Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).
Visit on Oct 31, 2026
Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.
Pre-op dayGlobal period
What modifiers do to the payment
Modifier 50 · payment effect
With and without the modifier
23120 without 50 · national facility
$564.81
Clavicle resection, partial claviculectomy
23120-50 · Bilateral: 150%
$847.21
Both sides on one line with modifier 50 are paid at 150% of the fee schedule amount (subject to multiple-procedure rules with other procedures).
23120 compared with similar codes
Compare codes · National
5 codes, side by side
How to choose
- 23125ClaviculectomyEntire clavicle
- 23125 represents complete clavicle removal. Use 23120 when only part of the clavicle is resected.
- 23180Clavicle excisionLimited bone removal
- 23180 describes specified partial bone-excision techniques, including craterization or saucerization. 23120 is the partial claviculectomy code for resection such as distal clavicle excision.
- 23170SequestrectomyClavicle
- 23170 is for clavicular sequestrum removal. Use 23120 for partial clavicle resection when the procedure is not specifically a sequestrectomy.
- 23130AcromioplastyPartial acromion resection
- 23130 addresses partial acromion removal or acromioplasty; 23120 removes part of the clavicle.
23120 billing questions
When is partial claviculectomy used instead of complete claviculectomy?
Use this code when the surgeon removes only part of the clavicle. Complete removal is reported with 23125.
Is distal clavicle excision for acromioclavicular joint arthritis a typical example?
Yes. Partial removal of the distal clavicle for symptomatic acromioclavicular joint disease is a common example.
How should bilateral partial claviculectomy be reported?
CMS specifies modifier 50 for a bilateral procedure, paid at 150%. The operative documentation should support treatment of both sides.
What happens when other procedures are performed in the same session?
Under the standard multiple procedure reduction, the highest-valued procedure is paid in full and the other procedures are paid at 50%.
Can an assistant or co-surgeon be reported?
Assistant-at-surgery payment may be made. Co-surgeons are paid only with supporting documentation; team surgery is not permitted.
What documentation supports this code?
The operative report should identify the side, the reason for surgery, and the portion and extent of clavicle removed.
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
Show the CMS file lines behind this rate
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