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CPT code 28299: Bunion correction, double osteotomy2026 Medicare rate & RVUs in Iowa

Reports surgical correction of hallux valgus using two osteotomies, typically addressing deformity at the first metatarsal and proximal phalanx.

CMS RVU26DEffective Oct 1, 2026One payment locality7.6K Medicare services in 2024

In Iowa, Medicare pays $954.50 for 28299 in the office and $521.75 when it’s performed in a hospital or facility.

$954.50Office (non-facility)
$521.75Hospital or facility
−7.9%vs the national office rate ($1,036.43)

Check a contract rate as a % of Medicare · 28299 nationwide

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

We’ll open 28299 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Iowa
  2. What 28299 covers
  3. Compared with other areas
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Related codes
  8. Rate history
  9. Where it applies
  10. Billing questions
  11. Sources

What 28299 covers

A foot and ankle surgeon performs two bone cuts to correct hallux valgus, the deformity commonly called a bunion. The procedure may address the first metatarsal and proximal phalanx to realign the great toe and improve its position. It is generally performed in an operating room or ambulatory surgery setting for a symptomatic deformity requiring more than one osteotomy.

Report 28299 when the operative plan and record support a double-osteotomy correction, rather than a single osteotomy or a first tarsometatarsal joint fusion. Document the deformity, the bones and sites treated, and the osteotomies performed. The code has a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. For multiple procedures in one session, the highest-valued procedure is paid in full and others at 50%. Bilateral reporting with modifier 50 is paid at 150%. Assistant-at-surgery payment may be made; co-surgeon payment requires supporting documentation, and team surgery is 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.

How Iowa compares for 28299

Across 109 of 109 payment localities, the office rate for 28299 runs from $919.98 in Arkansas to $1,359.87 in San Benito County, CA. Iowa pays $954.50. The RVUs are the same everywhere; the geographic indexes change the dollars.

28299 in Iowa vs other payment areas
  1. Iowa · this page$954.50
  2. Los Angeles, CA · California$1,163.54+$209.04
  3. Washington, DC area · District of Columbia$1,180.94+$226.44
  4. Miami, FL · Florida$1,122.68+$168.18
  5. Chicago, IL · Illinois$1,090.91+$136.41
  6. Manhattan, NY · New York$1,190.68+$236.18
  7. Alaska · Alaska$1,216.03+$261.53

Other areas in Iowa first, then benchmark localities. Bars start at $0.

Every other payment area

28299 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$933.04$519.20
ArkansasArkansas$919.98$513.71
ArizonaArizona$1,009.42$551.12
Bakersfield, CACalifornia$1,094.25$575.88
Chico, CACalifornia$1,090.88$572.52
El Centro, CACalifornia$1,091.07$572.71
Fresno, CACalifornia$1,090.88$572.52
Hanford, CACalifornia$1,090.88$572.52

28299 rates by state

Office rate range in each state. Select a state to see its payment localities.

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

Explore a state

Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

$919.98

$1,225.38

Color shows the midpoint of each state’s locality range.

View every state and territory as a table
28299 office rate range by state
State / territoryOffice rate rangeLocalities
AK$1,216.031
AL$933.041
AR$919.981
AZ$1,009.421
CA$1,090.88–$1,359.8729
CO$1,076.341
CT$1,104.011
DC$1,180.941
DE$1,025.781
FL$1,024.79–$1,122.683
GA$968.50–$1,056.062
GU$1,115.901
HI$1,115.901
IA$954.501
ID$960.851
IL$997.12–$1,090.914
IN$966.221
KS$950.891
KY$955.961
LA$954.80–$1,000.492
MA$1,070.50–$1,179.722
MD$1,044.71–$1,180.943
ME$966.48–$1,016.242
MI$980.74–$1,037.962
MN$1,030.051
MO$939.39–$1,003.093
MS$929.821
MT$1,036.351
NC$976.171
ND$1,014.011
NE$959.361
NH$1,060.251
NJ$1,116.23–$1,169.432
NM$986.241
NV$1,030.821
NY$990.42–$1,219.705
OH$976.171
OK$953.531
OR$1,022.44–$1,108.872
PA$977.28–$1,077.702
PR$1,043.521
RI$1,061.071
SC$977.871
SD$1,011.371
TN$955.611
TX$971.10–$1,073.108
UT$990.821
VA$1,013.50–$1,180.942
VI$1,043.521
VT$1,010.821
WA$1,068.24–$1,202.662
WI$981.081
WV$961.511
WY$1,026.621

See 28299 in every payment locality

How the 28299 rate is calculated

Each of 28299’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 · 28299

RVUs × geographic indexes × conversion factor

Office or facility?

Work9.06

9.06 RVUs× 1.000 GPCI

Practice expense20.84

20.84 RVUs× 1.000 GPCI

Malpractice1.13

1.13 RVUs× 1.000 GPCI

Adjusted RVUs

31.0300

Conversion factor

$33.4009

Medicare rate

$1,036.43

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

The exact Iowa inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

3,178

Code
28299
Physician work
9.06
Practice expense
20.84
Malpractice
1.13

GPCI2026.csv

53

Locality
Iowa
Physician work
1.000
Practice expense
0.915
Malpractice
0.397
Office calculation for 28299 in Iowa
ComponentRVULocality factorAdjusted
Physician work9.06× 1.0009.0600
Practice expense20.84× 0.91519.0686
Malpractice1.13× 0.3970.4486
Total RVUs28.5772
Conversion factor× 33.4009

Office rate, Iowa$954.50

Office: (9.06 × 1 + 20.84 × 0.915 + 1.13 × 0.397) × $33.4009 = $954.50

Facility: (9.06 × 1 + 6.68 × 0.915 + 1.13 × 0.397) × $33.4009 = $521.75

Open 28299 in the RVU calculator

Payment rules and modifiers for 28299

28299 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 28299

Bunion correction, double osteotomy

RuleCMS valueWhat it means
Global period090Major surgery: the day before, the day of, and 90 days after are included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
Bilateral (modifier 50)1Bilateral with modifier 50 pays 150% of the fee schedule amount.
Assistant at surgery (80/81/82/AS)2Paid.
Co-surgeons (62)1Permitted with supporting documentation.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.10/0.69/0.21Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 28299

Bunion correction, double osteotomy

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.

  • 24Unrelated E/M visit by the same physician
  • 79Unrelated procedure (starts its own global period)
  • 58Staged, more extensive, or therapy procedure that was planned
  • 78Unplanned return to the operating room for a related complication
SurgeryVisit
Sep 23, 2026Jan 10, 2027

Pre-op dayGlobal period

What modifiers do to the payment

Modifier 50 · payment effect

With and without the modifier

28299 without 50 · national office

$1,036.43

Bunion correction, double osteotomy

28299-50 · Bilateral: 150%

$1,554.65

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).

When to use modifier 50

Codes related to 28299

Related codes aren’t interchangeable: bill the code that matches the service performed.

Codes related to 28299
CodeHow it relatesOffice range, Iowa
Same family
28295Bunion correction, proximal metatarsal osteotomyHallux valgus correction using a proximal first-metatarsal osteotomy.$977.24
28296Bunion correction, distal first metatarsal osteotomyHallux valgus correction using a distal first-metatarsal osteotomy.$817.00
28298Bunion correction, proximal phalanx osteotomyHallux valgus correction using a proximal phalanx osteotomy.$791.61
Used instead
28297Bunion correction, first tarsometatarsal fusionHallux valgus correction using first tarsometatarsal joint arthrodesis.$949.48
28292Bunion correction, proximal phalanx base resectionHallux valgus correction without the double-osteotomy approach represented by 28299.$650.41

How 28299 has changed in Iowa

28299 · Office / nonfacility

$954.50

Effective 2026-10-01

The base rate is $54.33 higher than on 2025-10-01, moving from $900.17 to $954.50 (6.0%).

It is unchanged from the immediately preceding available release, effective 2026-07-01.

Base rate by release · bars start at $0 · select a bar to compare

One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.

What changed, release by release

  1. January 1, 2026

    RVU26A

    $900.17changed to$954.50

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 9.29 changed to 9.06
    • Practice expense RVU 19.78 changed to 20.84
    • Malpractice RVU 1.05 changed to 1.13
    • Practice expense GPCI 0.913 changed to 0.915
    • Malpractice GPCI 0.457 changed to 0.397

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $933.50changed to$900.17

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 20.00 changed to 19.78
    • Malpractice RVU 1.08 changed to 1.05

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $918.26changed to$933.50

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $938.78changed to$918.26

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 19.74 changed to 20.00
    • Malpractice RVU 1.02 changed to 1.08
    • Practice expense GPCI 0.910 changed to 0.913
    • Malpractice GPCI 0.441 changed to 0.457

  5. January 1, 2023

    RVU23A

    $950.75changed to$938.78

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 19.57 changed to 19.74
    • Practice expense GPCI 0.907 changed to 0.910
    • Malpractice GPCI 0.425 changed to 0.441

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $968.63changed to$950.75

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 19.90 changed to 19.57
    • Malpractice RVU 0.99 changed to 1.02

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $966.98changed to$968.63

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 18.85 changed to 19.90
    • Malpractice RVU 0.96 changed to 0.99
    • Malpractice GPCI 0.424 changed to 0.425

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $969.24changed to$966.98

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 18.98 changed to 18.85
    • Malpractice RVU 0.92 changed to 0.96
    • Malpractice GPCI 0.423 changed to 0.424

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $966.24changed to$969.24

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 18.93 changed to 18.98
    • Malpractice RVU 0.90 changed to 0.92

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $955.00changed to$966.24

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 18.75 changed to 18.93
    • Malpractice RVU 0.89 changed to 0.90
    • Practice expense GPCI 0.902 changed to 0.907
    • Malpractice GPCI 0.458 changed to 0.423

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $856.35changed to$955.00

    • Conversion factor 35.8043 changed to 35.8887
    • Work RVU 11.57 changed to 9.29
    • Practice expense RVU 13.17 changed to 18.75
    • Malpractice RVU 1.11 changed to 0.89
    • Practice expense GPCI 0.896 changed to 0.902
    • Malpractice GPCI 0.493 changed to 0.458

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $861.61changed to$856.35

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 13.21 changed to 13.17
    • Malpractice RVU 1.16 changed to 1.11

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $857.33changed to$861.61

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $846.18changed to$857.33

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 12.93 changed to 13.21
    • Malpractice RVU 1.09 changed to 1.16
    • Practice expense GPCI 0.892 changed to 0.896
    • Malpractice GPCI 0.475 changed to 0.493

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $838.66changed to$846.18

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 14.16 changed to 12.93
    • Malpractice RVU 1.14 changed to 1.09
    • Practice expense GPCI 0.887 changed to 0.892
    • Malpractice GPCI 0.456 changed to 0.475

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $838.66

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$954.50$521.75RVU26D
2026-07-01$954.50$521.75RVU26C
2026-04-01$954.50$521.75RVU26B
2026-01-01$954.50$521.75RVU26A
2025-10-01$900.17$547.26RVU25D
2025-07-01$900.17$547.26RVU25C
2025-04-01$900.17$547.26RVU25B
2025-01-01$900.17$547.26RVU25A
2024-10-01$933.50$557.86RVU24D
2024-07-01$933.50$557.86RVU24C
2024-04-01$933.50$557.86RVU24B
2024-03-09$933.50$557.86RVU24AR
2024-01-01$918.26$548.76RVU24A
2023-10-01$938.78$555.78RVU23D
2023-07-01$938.78$555.78RVU23C
2023-04-01$938.78$555.78RVU23B
2023-01-01$938.78$555.78RVU23A
2022-10-01$950.75$555.89RVU22D
2022-07-01$950.75$555.89RVU22C
2022-04-01$950.75$555.89RVU22B
2022-01-01$950.75$555.89RVU22A
2021-10-01$968.63$554.68RVU21D
2021-07-01$968.63$554.68RVU21C
2021-04-01$968.63$554.68RVU21B
2021-01-01$968.63$554.68RVU21A
2020-10-01$966.98$564.37RVU20D
2020-07-01$966.98$564.37RVU20C
2020-04-01$966.98$564.37RVU20B
2020-01-01$966.98$564.37RVU20A
2019-10-01$969.24$564.24RVU19D
2019-07-01$969.24$564.24RVU19C
2019-04-01$969.24$564.24RVU19B
2019-01-01$969.24$564.24RVU19A
2018-10-01$966.24$561.68RVU18D
2018-07-01$966.24$561.68RVU18C
2018-04-01$966.24$561.68RVU18B
2018-01-01$966.24$561.68RVU18AR1
2017-10-01$955.00$558.45RVU17D
2017-07-01$955.00$558.45RVU17C
2017-04-01$955.00$558.45RVU17B
2017-01-01$955.00$558.45RVU17A
2016-10-01$856.35$652.00RVU16D
2016-07-01$856.35$652.00RVU16C
2016-04-01$856.35$652.00RVU16B
2016-01-01$856.35$652.00RVU16A
2015-10-01$861.61$655.56RVU15D
2015-07-01$861.61$655.56RVU15C
2015-04-01$857.33$652.30RVU15B
2015-01-01$857.33$652.30RVU15A
2014-10-01$846.18$647.11RVU14D
2014-07-01$846.18$647.11RVU14C
2014-04-01$846.18$647.11RVU14B
2014-01-01$846.18$647.11RVU14A
2013-10-01$838.66$629.82RVU13D
2013-07-01$838.66$629.82RVU13C
2013-04-01$838.66$629.82RVU13B
2013-01-01$838.66$629.82RVU13AR

Price 28299 for an earlier date of service

Where the Iowa rate applies

Iowa is a Medicare payment area, not a city. Our Census mapping connects it to 1026 cities and communities in Iowa. Some span more than one payment area; confirm with the service ZIP.

  • Ackley
  • Ackworth
  • Adair
  • Adel
  • Afton
  • Agency
  • Ainsworth
  • Akron

Browse all communities in Iowa

28299 billing questions

When should 28299 be selected instead of a single-osteotomy code?

Use 28299 when the hallux valgus correction includes two osteotomies. A correction using only one osteotomy is represented by the applicable single-osteotomy code.

Can the two osteotomies be billed separately?

28299 represents the double-osteotomy correction. Do not separately report a single-osteotomy code for a component of that same correction.

What documentation supports 28299?

The operative report should identify the hallux valgus correction, the bones and sites treated, and both osteotomies performed.

How is bilateral 28299 reported?

For bilateral procedures, report modifier 50; CMS pays the bilateral procedure at 150%.

What postoperative care is included?

The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.

May an assistant or co-surgeon be reported?

Assistant-at-surgery payment may be made. Co-surgeon payment requires supporting documentation; team surgery is 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 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
RVUs for 28299PPRRVU2026_Oct_nonQPP.csv, line 3,178 (RVU26D)
Geographic factors for IowaGPCI2026.csv, line 53 (RVU26D)

Open CMS sourceHow we calculate rates

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