No office rate
Choose 23170 for removal of a clavicular sequestrum. Choose 23120 when the operation is partial clavicle resection.
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CMS RVU26D · Effective 2026-10-01
23170 Sequestrectomy Medicare reimbursement rates in Iowa
Report this operation when a surgeon removes a separated segment of devitalized clavicular bone, commonly as treatment for chronic osteomyelitis. Compare 23170 office and facility rates across CMS payment localities in Iowa.
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 23170 in Iowa?
Iowa has 1 payment locality in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the payment area shown below, using the same CMS release.
Office / nonfacility
No supported rate
Facility setting
$489.15
1 of 1 localities have a supported rate.
Payment area: Iowa
One mapped payment locality.
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 23170: Clavicle sequestrum removal
Report this operation when a surgeon removes a separated segment of devitalized clavicular bone, commonly as treatment for chronic osteomyelitis.
An orthopedic surgeon exposes the clavicle and removes a sequestrum, a fragment of dead bone separated from viable bone. The operation is typically performed in an operating room when infection or another process has left devitalized bone requiring removal. The code is specific to the clavicle; the operative report should identify the bone and describe removal of the sequestrum.
Select this code for removal of a clavicular sequestrum, rather than a partial or total clavicle resection or excision of a bone lesion. Document the indication, involved site, operative findings, and work performed. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. For bilateral surgery, modifier 50 is paid at 150%. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and others at 50%. Assistant-at-surgery payment is restricted; co-surgeons and team surgery are not permitted.
CMS billing rules for 23170
- 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
- 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 RVU7.03 · 43%
- Practice expense (office) RVU7.68 · 47%
- Malpractice RVU1.48 · 9%
17
Medicare services in 2024 · #5992 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.
23170 compared with similar codes
Office rates for Iowa, from the same CMS release.
No office rate
23170 identifies removal of a sequestrum from the clavicle; 23180 describes partial excision of clavicular bone.
No office rate
Both codes describe sequestrectomy, but 23172 is for the scapula and 23170 is for the clavicle.
No office rate
23174 applies to sequestrectomy at the humeral head surgical neck; 23170 applies to the clavicle.
Compare 23170 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.
1 of 1 payment localities
Iowa →
Office / nonfacility
Unavailable
Facility
$489.15
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How this local rate is calculated
Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for 23170 in Iowa.
PPRRVU2026_Oct_nonQPP.csv
2,177
- Code
- 23170
- Physician work
- 7.03
- Practice expense
- 7.68
- Malpractice
- 1.48
GPCI2026.csv
53
- Locality
- Iowa
- Physician work
- 1.000
- Practice expense
- 0.915
- Malpractice
- 0.397
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 7.03 | × 1.000 | 7.0300 |
| Practice expense | 7.68 | × 0.915 | 7.0272 |
| Malpractice | 1.48 | × 0.397 | 0.5876 |
| Total RVUs | 14.6448 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Iowa$489.15
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 7.03 | 1 |
| Practice expense | 7.68 | 0.915 |
| Malpractice | 1.48 | 0.397 |
(7.03 × 1 + 7.68 × 0.915 + 1.48 × 0.397) × $33.4009 = $489.15
The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.
23170 billing questions
How is this different from partial claviculectomy?
This code is for removing a separated fragment of devitalized clavicular bone. A partial claviculectomy describes resection of part of the clavicle rather than sequestrectomy.
What operative details support reporting this code?
Document that the involved bone is the clavicle, identify the sequestrum, and describe its operative removal and the clinical indication.
Does the 90-day global period include related follow-up?
Yes. The global period includes the day-before preoperative visit and 90 days of related postoperative care.
How are bilateral procedures and multiple procedures paid?
Bilateral reporting with modifier 50 is paid at 150%. In the same session, the highest-valued procedure is paid in full and additional procedures at 50%.
Can an assistant, co-surgeon, or surgical team be reported?
Assistant-at-surgery payment is subject to a statutory restriction. Co-surgeons and team surgery are not permitted 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 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.
2,17423150,,Removal of humerus lesion,A,,8.69,8.40,NA,8.40,,1.85,18.94,18.94,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,17523155,,Removal of humerus lesion,A,,10.59,9.57,NA,9.57,,2.25,22.41,22.41,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,17623156,,Removal of humerus lesion,A,,8.88,8.46,NA,8.46,,1.90,19.24,19.24,0,090,0.10,0.69,0.21,2,1,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,17723170,,Sequestrectomy clavicle,A,,7.03,7.68,NA,7.68,,1.48,16.19,16.19,0,090,0.10,0.69,0.21,2,1,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,17823172,,Sequestrectomy scapula,A,,7.13,7.71,NA,7.71,,1.50,16.34,16.34,0,090,0.10,0.69,0.21,2,1,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,17923174,,Sqstrctmy humrl head srg nck,A,,9.80,9.81,NA,9.81,,2.09,21.70,21.70,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,18023180,,Prtl excision bone clavicle,A,,8.77,8.98,NA,8.98,,1.86,19.61,19.61,0,090,0.10,0.69,0.21,2,1,1,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
5006102,IL,15,SUBURBAN CHICAGO,1.007,1.027,1.772
5106102,IL,99,REST OF ILLINOIS,1.000,0.913,1.563
5208102,IN,00,INDIANA,1.000,0.927,0.486
5305102,IA,00,IOWA,1.000,0.915,0.397
5405202,KS,00,KANSAS,1.000,0.904,0.504
5515102,KY,00,KENTUCKY,1.000,0.889,0.915
5607202,LA,01,NEW ORLEANS,1.000,0.941,1.136