Billing code 24370: Elbow revisionMedicare rate & RVUs in Guam
Reports revision of a total elbow replacement when both the humeral and ulnar prosthetic components are revised, with allograft included when performed.
CMS doesn’t publish an office rate for 24370 in Guam.
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 24370 covers
An orthopedic surgeon uses this service to revise both the humeral and ulnar components of a previously implanted total elbow replacement. The operation may address problems such as loosening, wear, or instability of the prosthesis. It is generally performed in a hospital operating room, with the surgeon removing or revising the existing components and reconstructing the joint as needed. Allograft used during the revision is included in the service.
Report this code when the operative documentation supports revision of both components; use the related one-component revision code when only the humeral or ulnar component is revised. Document the prior elbow replacement, the condition prompting revision, and which components were revised. Medicare assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When other procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard multiple procedure reduction. Modifier 50 bilateral procedures are paid at 150%. An assistant at surgery may be paid; co-surgeons and team surgery 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.
24370 in Hawaii, Guam
| Payment locality | Office | Facility |
|---|---|---|
| Hawaii, Guam | Unavailable | $1,374.42 |
How the 24370 rate is calculated
Each of 24370’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 · 24370
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 22.96Practice expense 13.65Malpractice 4.61
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 24370
24370 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 24370
Elbow revision
| 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) | 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 · 24370
Elbow revision
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
24370 without 50 · national facility
$1,376.79
Elbow revision
24370-50 · Bilateral: 150%
$2,065.19
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).
24370 compared with similar codes
Compare codes
24370 vs 24371 vs 24363 vs 24360: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 24371Elbow revision
- 24370 describes revision of both humeral and ulnar components. 24371 is for revision of only one component.
- 24363Elbow arthroplasty
- 24363 is for a primary elbow joint replacement. 24370 is for revision of a previously implanted total elbow replacement.
- 24360Elbow arthroplasty
- 24360 describes a different elbow arthroplasty service, not revision of both components of a total elbow replacement.
24370 billing questions
When should 24370 be reported instead of 24371?
Report 24370 when both the humeral and ulnar components of the existing total elbow replacement are revised. Use 24371 when only one of those components is revised.
Is an allograft separately reported?
Allograft used as part of this elbow revision is included in the service.
How should the operative report support this code?
Document the prior total elbow replacement, the reason for revision, and the revision of both the humeral and ulnar components.
What global period applies?
Medicare assigns a 90-day global period. It includes the day-before preoperative visit and 90 days of related postoperative care.
Can an assistant or co-surgeon be reported?
An assistant at surgery may be paid. Co-surgeons and team surgery are not permitted under the CMS rules for this code.
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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