CPT code 23900: Shoulder amputation2026 Medicare rate & RVUs in Utah
Reports removal of the upper limb with the shoulder girdle, typically for extensive malignancy when a more limited amputation cannot remove the disease.
CMS doesn’t publish an office rate for 23900 in Utah.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
On this page 9 sections
What 23900 covers
This extensive amputation removes the arm together with the scapula and part of the clavicle. It is most often performed by an orthopedic oncologist for a tumor involving the proximal arm or shoulder girdle when limb-sparing surgery is not feasible. The procedure takes place in an operating room, commonly in a hospital setting.
Choose this code when the operative report supports removal of the shoulder girdle with the limb, rather than separation of the arm at the shoulder joint alone. The report should document the structures removed and the reason for this extent of resection. The 90-day global period includes the day-before preoperative visit and related postoperative care during that period. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and others at 50%. Modifier 50 is inappropriate for this procedure. Assistant-at-surgery payment may be made; co-surgeon and team-surgery reporting are 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.
23900 in Utah
| Payment locality | Office | Facility |
|---|---|---|
| Utah | Unavailable | $1,215.91 |
How the 23900 rate is calculated
Each of 23900’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 · 23900
RVUs × geographic indexes × conversion factor
Work20.20
20.20 RVUs× 1.000 GPCI
Practice expense13.13
13.13 RVUs× 1.000 GPCI
Malpractice4.30
4.30 RVUs× 1.000 GPCI
Adjusted RVUs
37.6300
Conversion factor
$33.4009
Medicare rate
$1,256.88
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 23900
23900 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 23900
Shoulder amputation
| 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) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 2 | Paid. |
| Co-surgeons (62) | 0 | Not permitted. |
| 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 · 23900
Shoulder amputation
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 51 · payment effect
With and without the modifier
23900 without 51 · national facility
$1,256.88
Shoulder amputation
23900-51 · Second procedure: 50%
$628.44
When this isn’t the highest-valued procedure in the session, Medicare pays 50% of its fee schedule amount (the highest is paid at 100%).
23900 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 23920Shoulder amputation
- Use 23920 when the arm is separated at the shoulder joint and the shoulder girdle is preserved. This code requires removal extending into the scapula and clavicular region.
- 23921Amputation closure
- 23921 describes secondary closure or scar revision related to shoulder disarticulation; it is not the initial forequarter amputation.
- 24900Upper arm amputation
- 24900 is for amputation through the humerus. Select this code when the shoulder girdle is not removed with the arm.
23900 billing questions
How is this different from shoulder disarticulation?
This procedure removes the scapula and a portion of the clavicle along with the arm. Shoulder disarticulation separates the arm at the shoulder joint and preserves the shoulder girdle.
What documentation supports reporting this code?
The operative report should identify the arm and shoulder-girdle structures removed, including the scapula and clavicular component, and describe the clinical reason for that extent of resection.
Can modifier 50 be reported?
No. Modifier 50 is inappropriate for this one-sided forequarter amputation.
How does the global period affect postoperative billing?
The 90-day global period includes the day-before preoperative visit and related postoperative care during the 90 days after surgery.
How are other procedures in the same session paid?
The highest-valued procedure is paid in full, and other procedures subject to the standard multiple-procedure reduction are paid at 50%. Assistant-at-surgery payment may be made; co-surgeon and team-surgery reporting are not permitted.
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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