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CPT code 28298: Bunion correction, proximal phalanx osteotomy2026 Medicare rate & RVUs in Delaware

Corrects hallux valgus using an osteotomy of the great toe’s proximal phalanx as part of the bunion operation.

CMS RVU26DEffective Oct 1, 2026One payment locality4.2K Medicare services in 2024

In Delaware, Medicare pays $851.43 for 28298 in the office and $478.86 when it’s performed in a hospital or facility.

$851.43Office (non-facility)
$478.86Hospital or facility
−1.0%vs the national office rate ($860.41)

Check a contract rate as a % of Medicare · 28298 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 28298 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Delaware
  2. What 28298 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 28298 covers

An orthopedic or podiatric surgeon performs this operation to correct hallux valgus by making an osteotomy in the proximal phalanx of the great toe. The bone cut helps adjust toe alignment as part of the bunion correction. The procedure is typically performed in an operating room for a symptomatic deformity selected for surgical treatment.

Report 28298 when the operative technique includes a proximal phalanx osteotomy; the diagnosis alone does not determine code selection. The operative report should describe the hallux valgus correction, the osteotomy, and the side treated. CMS assigns 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 the others at 50%. Modifier 50 results in payment at 150% for bilateral performance. An assistant at surgery may be paid; co-surgeons are paid only with 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 Delaware compares for 28298

Across 109 of 109 payment localities, the office rate for 28298 runs from $763.32 in Arkansas to $1,126.91 in San Benito County, CA. Delaware pays $851.43. The RVUs are the same everywhere; the geographic indexes change the dollars.

28298 in Delaware vs other payment areas
  1. Delaware · this page$851.43
  2. Los Angeles, CA · California$964.84+$113.41
  3. Washington, DC area · District of Columbia$980.10+$128.67
  4. Miami, FL · Florida$934.53+$83.10
  5. Chicago, IL · Illinois$907.87+$56.44
  6. Manhattan, NY · New York$989.07+$137.64
  7. Alaska · Alaska$1,009.18+$157.75

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

Every other payment area

28298 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$774.20$444.24
ArkansasArkansas$763.32$439.39
ArizonaArizona$837.83$472.42
Bakersfield, CACalifornia$907.46$494.16
Chico, CACalifornia$904.54$491.24
El Centro, CACalifornia$904.71$491.41
Fresno, CACalifornia$904.54$491.24
Hanford, CACalifornia$904.54$491.24

28298 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.

$763.32

$1,015.73

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

View every state and territory as a table
28298 office rate range by state
State / territoryOffice rate rangeLocalities
AK$1,009.181
AL$774.201
AR$763.321
AZ$837.831
CA$904.54–$1,126.9129
CO$892.981
CT$916.661
DC$980.101
DE$851.431
FL$851.75–$934.533
GA$804.67–$877.012
GU$925.241
HI$925.241
IA$791.611
ID$796.991
IL$829.01–$907.874
IN$801.451
KS$788.821
KY$793.791
LA$792.91–$830.992
MA$888.20–$978.642
MD$867.12–$980.103
ME$801.92–$843.032
MI$814.66–$862.972
MN$853.801
MO$780.22–$832.883
MS$771.881
MT$860.341
NC$809.961
ND$840.771
NE$795.581
NH$879.841
NJ$926.60–$970.542
NM$819.341
NV$855.461
NY$821.84–$1,013.555
OH$810.661
OK$791.531
OR$848.29–$919.792
PA$811.45–$894.902
PR$866.231
RI$880.601
SC$811.761
SD$838.451
TN$792.791
TX$806.32–$890.488
UT$822.541
VA$840.91–$980.102
VI$866.231
VT$838.321
WA$886.25–$997.472
WI$813.381
WV$799.361
WY$851.811

See 28298 in every payment locality

How the 28298 rate is calculated

Each of 28298’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 · 28298

RVUs × geographic indexes × conversion factor

Office or facility?

Work7.56

7.56 RVUs× 1.000 GPCI

Practice expense17.21

17.21 RVUs× 1.000 GPCI

Malpractice0.99

0.99 RVUs× 1.000 GPCI

Adjusted RVUs

25.7600

Conversion factor

$33.4009

Medicare rate

$860.41

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

The exact Delaware inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

3,177

Code
28298
Physician work
7.56
Practice expense
17.21
Malpractice
0.99

GPCI2026.csv

40

Locality
Delaware
Physician work
1.005
Practice expense
0.988
Malpractice
0.899
Office calculation for 28298 in Delaware
ComponentRVULocality factorAdjusted
Physician work7.56× 1.0057.5978
Practice expense17.21× 0.98817.0035
Malpractice0.99× 0.8990.8900
Total RVUs25.4913
Conversion factor× 33.4009

Office rate, Delaware$851.43

Office: (7.56 × 1.005 + 17.21 × 0.988 + 0.99 × 0.899) × $33.4009 = $851.43

Facility: (7.56 × 1.005 + 5.92 × 0.988 + 0.99 × 0.899) × $33.4009 = $478.86

Open 28298 in the RVU calculator

Payment rules and modifiers for 28298

28298 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 28298

Bunion correction, proximal phalanx 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 · 28298

Bunion correction, proximal phalanx 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

28298 without 50 · national office

$860.41

Bunion correction, proximal phalanx osteotomy

28298-50 · Bilateral: 150%

$1,290.62

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 28298

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

Codes related to 28298
CodeHow it relatesOffice range, Delaware
Used instead
28292Bunion correction, proximal phalanx base resectionUses resection at the proximal phalanx base for hallux valgus correction rather than the osteotomy approach.$696.45
Same family
28295Bunion correction, proximal metatarsal osteotomyHallux valgus correction using a proximal first metatarsal osteotomy.$1,053.49
28296Bunion correction, distal first metatarsal osteotomyHallux valgus correction using a distal first metatarsal osteotomy.$874.98
28297Bunion correction, first tarsometatarsal fusionCorrects hallux valgus through fusion of the first metatarsophalangeal joint.$1,020.20
28299Bunion correction, double osteotomyHallux valgus correction involving a double osteotomy.$1,025.78

How 28298 has changed in Delaware

28298 · Office / nonfacility

$851.43

Effective 2026-10-01

The base rate is $52.97 higher than on 2025-10-01, moving from $798.46 to $851.43 (6.6%).

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

    $798.46changed to$851.43

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 7.75 changed to 7.56
    • Practice expense RVU 16.14 changed to 17.21
    • Malpractice RVU 0.90 changed to 0.99
    • Work GPCI 1.009 changed to 1.005
    • Practice expense GPCI 0.992 changed to 0.988
    • Malpractice GPCI 0.949 changed to 0.899

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $831.21changed to$798.46

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 16.39 changed to 16.14
    • Malpractice RVU 0.94 changed to 0.90

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $817.65changed to$831.21

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $844.86changed to$817.65

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 16.17 changed to 16.39
    • Malpractice RVU 0.90 changed to 0.94
    • Work GPCI 1.007 changed to 1.009
    • Practice expense GPCI 1.007 changed to 0.992
    • Malpractice GPCI 0.938 changed to 0.949

  5. January 1, 2023

    RVU23A

    $865.35changed to$844.86

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 16.03 changed to 16.17
    • Work GPCI 1.005 changed to 1.007
    • Practice expense GPCI 1.022 changed to 1.007
    • Malpractice GPCI 0.927 changed to 0.938

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $886.57changed to$865.35

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 16.46 changed to 16.03
    • Malpractice RVU 0.86 changed to 0.90

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $891.63changed to$886.57

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 15.71 changed to 16.46
    • Malpractice RVU 0.85 changed to 0.86
    • Work GPCI 1.006 changed to 1.005
    • Practice expense GPCI 1.021 changed to 1.022
    • Malpractice GPCI 1.023 changed to 0.927

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $900.00changed to$891.63

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 15.97 changed to 15.71
    • Malpractice RVU 0.80 changed to 0.85
    • Work GPCI 1.007 changed to 1.006
    • Practice expense GPCI 1.019 changed to 1.021
    • Malpractice GPCI 1.119 changed to 1.023

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $904.85changed to$900.00

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 16.14 changed to 15.97
    • Malpractice RVU 0.79 changed to 0.80

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $901.08changed to$904.85

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 16.01 changed to 16.14
    • Work GPCI 1.010 changed to 1.007
    • Practice expense GPCI 1.025 changed to 1.019
    • Malpractice GPCI 1.101 changed to 1.119

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $764.98changed to$901.08

    • Conversion factor 35.8043 changed to 35.8887
    • Work RVU 8.13 changed to 7.75
    • Practice expense RVU 11.85 changed to 16.01
    • Malpractice RVU 0.85 changed to 0.79
    • Work GPCI 1.012 changed to 1.010
    • Practice expense GPCI 1.031 changed to 1.025
    • Malpractice GPCI 1.083 changed to 1.101

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $766.27changed to$764.98

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 11.80 changed to 11.85
    • Malpractice RVU 0.86 changed to 0.85

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $762.46changed to$766.27

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $757.01changed to$762.46

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 11.73 changed to 11.80
    • Malpractice RVU 0.83 changed to 0.86
    • Practice expense GPCI 1.038 changed to 1.031
    • Malpractice GPCI 0.878 changed to 1.083

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $757.32changed to$757.01

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 12.88 changed to 11.73
    • Malpractice RVU 0.87 changed to 0.83
    • Practice expense GPCI 1.044 changed to 1.038
    • Malpractice GPCI 0.672 changed to 0.878

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $757.32

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$851.43$478.86RVU26D
2026-07-01$851.43$478.86RVU26C
2026-04-01$851.43$478.86RVU26B
2026-01-01$851.43$478.86RVU26A
2025-10-01$798.46$498.77RVU25D
2025-07-01$798.46$498.77RVU25C
2025-04-01$798.46$498.77RVU25B
2025-01-01$798.46$498.77RVU25A
2024-10-01$831.21$510.91RVU24D
2024-07-01$831.21$510.91RVU24C
2024-04-01$831.21$510.91RVU24B
2024-03-09$831.21$510.91RVU24AR
2024-01-01$817.65$502.57RVU24A
2023-10-01$844.86$511.81RVU23D
2023-07-01$844.86$511.81RVU23C
2023-04-01$844.86$511.81RVU23B
2023-01-01$844.86$511.81RVU23A
2022-10-01$865.35$515.21RVU22D
2022-07-01$865.35$515.21RVU22C
2022-04-01$865.35$515.21RVU22B
2022-01-01$865.35$515.21RVU22A
2021-10-01$886.57$513.56RVU21D
2021-07-01$886.57$513.56RVU21C
2021-04-01$886.57$513.56RVU21B
2021-01-01$886.57$513.56RVU21A
2020-10-01$891.63$524.26RVU20D
2020-07-01$891.63$524.26RVU20C
2020-04-01$891.63$524.26RVU20B
2020-01-01$891.63$524.26RVU20A
2019-10-01$900.00$525.78RVU19D
2019-07-01$900.00$525.78RVU19C
2019-04-01$900.00$525.78RVU19B
2019-01-01$900.00$525.78RVU19A
2018-10-01$904.85$524.07RVU18D
2018-07-01$904.85$524.07RVU18C
2018-04-01$904.85$524.07RVU18B
2018-01-01$904.85$524.07RVU18AR1
2017-10-01$901.08$522.92RVU17D
2017-07-01$901.08$522.92RVU17C
2017-04-01$901.08$522.92RVU17B
2017-01-01$901.08$522.92RVU17A
2016-10-01$764.98$533.52RVU16D
2016-07-01$764.98$533.52RVU16C
2016-04-01$764.98$533.52RVU16B
2016-01-01$764.98$533.52RVU16A
2015-10-01$766.27$534.36RVU15D
2015-07-01$766.27$534.36RVU15C
2015-04-01$762.46$531.70RVU15B
2015-01-01$762.46$531.70RVU15A
2014-10-01$757.01$526.84RVU14D
2014-07-01$757.01$526.84RVU14C
2014-04-01$757.01$526.84RVU14B
2014-01-01$757.01$526.84RVU14A
2013-10-01$757.32$513.29RVU13D
2013-07-01$757.32$513.29RVU13C
2013-04-01$757.32$513.29RVU13B
2013-01-01$757.32$513.29RVU13AR

Price 28298 for an earlier date of service

Where the Delaware rate applies

Delaware is a Medicare payment area, not a city. Our Census mapping connects it to 79 cities and communities in Delaware. Some span more than one payment area; confirm with the service ZIP.

  • Arden
  • Ardencroft
  • Ardentown
  • Bear
  • Bellefonte
  • Bethany Beach
  • Bethel
  • Blades

Browse all communities in Delaware

28298 billing questions

When should 28298 be chosen over a metatarsal osteotomy code?

Choose 28298 when the hallux valgus correction includes an osteotomy of the proximal phalanx. Codes 28295 and 28296 describe correction using an osteotomy at different parts of the first metatarsal.

Is the proximal phalanx osteotomy separately billed?

The proximal phalanx osteotomy is part of the corrective service represented by 28298. Do not report it again as a separate procedure for the same corrective work.

What documentation supports reporting 28298?

The operative report should establish that hallux valgus was corrected with an osteotomy of the great toe’s proximal phalanx and identify the side treated.

How is bilateral performance reported?

CMS pays bilateral performance with modifier 50 at 150%. The code has a 90-day global period, which 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 are paid only with supporting documentation; team surgery is not permitted.

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 28298PPRRVU2026_Oct_nonQPP.csv, line 3,177 (RVU26D)
Geographic factors for DelawareGPCI2026.csv, line 40 (RVU26D)

Open CMS sourceHow we calculate rates

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