No office rate
24400 is a humeral osteotomy, correcting alignment by cutting bone. This code describes selective arrest of one side of the growth plate to guide gradual correction.
On this page
CMS RVU26D · Effective 2026-10-01
24470 Growth arrest Medicare reimbursement rates in Iowa
A pediatric orthopedic surgeon selectively arrests one side of a humeral growth plate to guide correction of a progressive angular deformity. Compare 24470 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 24470 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
$577.06
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 24470: Humeral hemiepiphyseal growth arrest
A pediatric orthopedic surgeon selectively arrests one side of a humeral growth plate to guide correction of a progressive angular deformity.
This operation slows growth on one side of a humeral physis while growth on the opposite side continues, allowing gradual correction of an angular deformity in a child who is still growing. It is typically performed by an orthopedic surgeon in an operating room. The growth plate, side of the deformity, and remaining growth potential guide whether growth modulation is an appropriate approach; it differs from cutting or reshaping the bone directly.
Report the service for the operative hemiepiphyseal arrest, with documentation identifying the humeral site, laterality, deformity, and procedure performed. CMS assigns a 90-day global period, which includes the day-before preoperative visit and related postoperative care during that period. When multiple 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. For bilateral surgery, modifier 50 is paid at 150%. Assistant-at-surgery payment may be made; co-surgeons and team surgery are not permitted.
CMS billing rules for 24470
- 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 not permitted.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU8.71 · 46%
- Practice expense (office) RVU8.56 · 45%
- Malpractice RVU1.85 · 10%
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.
24470 compared with similar codes
Office rates for Iowa, from the same CMS release.
No office rate
27485 is hemiepiphysiodesis at the distal femur. Choose the code for the anatomical site treated: femur for 27485, humerus for 24470.
No office rate
27475 describes epiphyseal arrest by stapling at the distal femur. It differs in both site and the specified growth-arrest procedure.
Compare 24470 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
$577.06
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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 24470 in Iowa.
PPRRVU2026_Oct_nonQPP.csv
2,323
- Code
- 24470
- Physician work
- 8.71
- Practice expense
- 8.56
- Malpractice
- 1.85
GPCI2026.csv
53
- Locality
- Iowa
- Physician work
- 1.000
- Practice expense
- 0.915
- Malpractice
- 0.397
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 8.71 | × 1.000 | 8.7100 |
| Practice expense | 8.56 | × 0.915 | 7.8324 |
| Malpractice | 1.85 | × 0.397 | 0.7345 |
| Total RVUs | 17.2768 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Iowa$577.06
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 8.71 | 1 |
| Practice expense | 8.56 | 0.915 |
| Malpractice | 1.85 | 0.397 |
(8.71 × 1 + 8.56 × 0.915 + 1.85 × 0.397) × $33.4009 = $577.06
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.
24470 billing questions
When is this code chosen instead of a humeral osteotomy?
Use this code when the surgeon arrests growth on one side of the humeral physis to gradually guide alignment. A humeral osteotomy corrects alignment by cutting the bone.
Does the 90-day global period include postoperative visits?
Yes. Related postoperative care for 90 days is included, along with the day-before preoperative visit.
How is bilateral surgery reported?
CMS lists this as a bilateral procedure; modifier 50 is paid at 150%.
Can an assistant surgeon be reported?
Assistant-at-surgery payment may be made. Co-surgeons and team surgery are not permitted under the CMS rules provided.
What documentation supports selecting this code?
Document the humeral physis treated, laterality, angular deformity, and the operative growth-arrest procedure. The record should make clear that growth modulation, rather than direct bone realignment, was performed.
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.
2,32024420,,Osteoplasty humerus,A,,13.39,13.75,NA,13.75,,2.85,29.99,29.99,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,32124430,,Rpr non/mal humerus wo graft,A,,14.87,11.10,NA,11.10,,3.06,29.03,29.03,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,32224435,,Rpr non/mal hum with agrft,A,,14.62,12.39,NA,12.39,,3.05,30.06,30.06,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,32324470,,Hemiepiphyseal arrest,A,,8.71,8.56,NA,8.56,,1.85,19.12,19.12,0,090,0.10,0.69,0.21,2,1,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,32424495,,Decompression fasct forearm,A,,8.20,17.20,NA,17.20,,1.74,27.14,27.14,0,090,0.10,0.69,0.21,2,1,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,32524498,,Proph tx w/wo mthylmthcrylt,A,,11.97,9.53,NA,9.53,,2.52,24.02,24.02,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,32624500,,Cltx humrl shft fx w/o mnpj,A,,3.32,8.41,,6.42,,0.70,12.43,10.44,0,090,0.10,0.69,0.21,2,1,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
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