Use 23174 for removal of a sequestrum at the humeral head or surgical neck. Code 23184 describes partial excision of proximal humeral bone more generally.
On this page
CMS RVU26D · Effective 2026-10-01
23184 Bone excision Medicare reimbursement rates in Michigan
Reports surgical removal of a limited portion of proximal humeral bone when localized abnormal or diseased bone requires excision. Compare 23184 office and facility rates across CMS payment localities in Michigan.
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 23184 in Michigan?
Michigan has 2 payment localities in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the 2 payment areas shown below, using the same CMS release.
Office / nonfacility
No supported rate
Facility setting
$678.58–$732.44
2 of 2 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.
Orthopedic surgery
About 23184: Partial proximal humerus bone excision
Reports surgical removal of a limited portion of proximal humeral bone when localized abnormal or diseased bone requires excision.
An orthopedic surgeon removes a limited portion of bone from the proximal humerus, the upper end of the arm bone near the shoulder. The operation may involve shaping or removing a segment of abnormal bone, such as during treatment of localized bone disease. It is generally performed in an operating room; Medicare recorded facility services for this code in 2024.
Report the code when the operative work is a partial excision of proximal humeral bone, rather than removal of a specific sequestrum or resection of the humeral head. The operative report should identify the bone and location, the extent of removal, and the clinical reason for surgery. The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care. For same-session procedures, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% multiple-procedure reduction. Bilateral reporting with modifier 50 is paid at 150%. An assistant at surgery may be paid; co-surgeon payment requires supporting documentation, and team surgery is not permitted.
CMS billing rules for 23184
- 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 procedure with modifier 50 is paid at 150%.
- Assistant at surgery
- Assistant at surgery may be paid.
- Co-surgeons
- Co-surgeons paid only with supporting documentation.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU9.65 · 46%
- Practice expense (office) RVU9.16 · 44%
- Malpractice RVU2.04 · 10%
203
Medicare services in 2024 · #4317 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.
23184 compared with similar codes
Office rates for Michigan, from the same CMS release.
Humeral head resection
23195 describes resection of the humeral head. Choose 23184 when the surgeon removes only a portion of proximal humeral bone.
23150 is a humeral bone-lesion removal code. Use it when the documented procedure fits that lesion-specific service; 23184 describes partial excision of proximal humeral bone.
Compare 23184 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.
2 of 2 payment localities
Detroit →
Office / nonfacility
Unavailable
Facility
$732.44
Rest Of Michigan →
Office / nonfacility
Unavailable
Facility
$678.58
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23184 billing questions
How does this differ from humeral-head resection?
This code is for partial removal of proximal humeral bone. Use the humeral-head resection code when the operative procedure removes the humeral head.
When is a sequestrectomy code more appropriate?
Use the humeral sequestrectomy code when the surgeon removes a sequestrum, or separated piece of dead bone, from the humeral head or surgical neck. This code describes a partial bone excision rather than that specific procedure.
Does the 90-day global period include routine postoperative care?
Yes. The global period includes the day-before preoperative visit and 90 days of related postoperative care.
How are other procedures in the same session paid?
The highest-valued procedure is paid in full, and other procedures are subject to the standard 50% multiple-procedure reduction.
Can this code be reported bilaterally?
For bilateral procedures, report modifier 50; CMS pays the bilateral procedure at 150%.
What documentation supports reporting this code?
Document the proximal humeral site, the extent and nature of the bone removed, and why partial excision was performed. The operative report should distinguish the work from a focused sequestrectomy or humeral-head resection.
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.
