FeeBase
Log inGet started
Menu

CPT code 28298: Bunion correction, proximal phalanx osteotomy2026 Medicare rate & RVUs in Baltimore area, MD

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 Baltimore area, MD, Medicare pays $914.25 for 28298 in the office and $509.62 when it’s performed in a hospital or facility.

$914.25Office (non-facility)
$509.62Hospital or facility
+6.3%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 Baltimore area, MD
  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 Baltimore area, MD 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. Baltimore area, MD pays $914.25. The RVUs are the same everywhere; the geographic indexes change the dollars.

28298 in Baltimore area, MD vs other payment areas
  1. Baltimore area, MD · this page$914.25
  2. Rest of Maryland · Maryland$867.12−$47.13
  3. Los Angeles, CA · California$964.84+$50.59
  4. Washington, DC area · District of Columbia$980.10+$65.85
  5. Miami, FL · Florida$934.53+$20.28
  6. Chicago, IL · Illinois$907.87−$6.38
  7. Manhattan, NY · New York$989.07+$74.82

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

Every other payment area

28298 in every other Medicare payment locality
Payment localityOfficeFacility
AlaskaAlaska$1,009.18$607.57
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

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 Baltimore area, MD 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

60

Locality
Baltimore area, MD
Physician work
1.016
Practice expense
1.073
Malpractice
1.237
Office calculation for 28298 in Baltimore area, MD
ComponentRVULocality factorAdjusted
Physician work7.56× 1.0167.6810
Practice expense17.21× 1.07318.4663
Malpractice0.99× 1.2371.2246
Total RVUs27.3719
Conversion factor× 33.4009

Office rate, Baltimore area, MD$914.25

Office: (7.56 × 1.016 + 17.21 × 1.073 + 0.99 × 1.237) × $33.4009 = $914.25

Facility: (7.56 × 1.016 + 5.92 × 1.073 + 0.99 × 1.237) × $33.4009 = $509.62

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, Baltimore area, MD
Used instead
28292Bunion correction, proximal phalanx base resectionUses resection at the proximal phalanx base for hallux valgus correction rather than the osteotomy approach.$744.88
Same family
28295Bunion correction, proximal metatarsal osteotomyHallux valgus correction using a proximal first metatarsal osteotomy.$1,133.68
28296Bunion correction, distal first metatarsal osteotomyHallux valgus correction using a distal first metatarsal osteotomy.$937.13
28297Bunion correction, first tarsometatarsal fusionCorrects hallux valgus through fusion of the first metatarsophalangeal joint.$1,094.88
28299Bunion correction, double osteotomyHallux valgus correction involving a double osteotomy.$1,101.03

How 28298 has changed in Baltimore area, MD

28298 · Office / nonfacility

$914.25

Effective 2026-10-01

The base rate is $57.65 higher than on 2025-10-01, moving from $856.60 to $914.25 (6.7%).

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

    $856.60changed to$914.25

    • 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 1.020 changed to 1.016
    • Practice expense GPCI 1.078 changed to 1.073
    • Malpractice GPCI 1.309 changed to 1.237

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $892.23changed to$856.60

    • 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

    $877.67changed to$892.23

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $904.54changed to$877.67

    • 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 1.024 changed to 1.020
    • Practice expense GPCI 1.087 changed to 1.078
    • Malpractice GPCI 1.311 changed to 1.309

  5. January 1, 2023

    RVU23A

    $924.59changed to$904.54

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 16.03 changed to 16.17
    • Work GPCI 1.028 changed to 1.024
    • Practice expense GPCI 1.096 changed to 1.087
    • Malpractice GPCI 1.313 changed to 1.311

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $946.87changed to$924.59

    • 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

    $947.80changed to$946.87

    • 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 1.026 changed to 1.028
    • Practice expense GPCI 1.095 changed to 1.096
    • Malpractice GPCI 1.304 changed to 1.313

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $953.28changed to$947.80

    • 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 1.023 changed to 1.026
    • Malpractice GPCI 1.295 changed to 1.304

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $958.47changed to$953.28

    • 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

    $949.37changed to$958.47

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 16.01 changed to 16.14
    • Practice expense GPCI 1.096 changed to 1.095
    • Malpractice GPCI 1.238 changed to 1.295

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $799.16changed to$949.37

    • 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
    • Practice expense GPCI 1.097 changed to 1.096
    • Malpractice GPCI 1.181 changed to 1.238

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $800.50changed to$799.16

    • 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

    $796.52changed to$800.50

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $794.98changed to$796.52

    • 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
    • Work GPCI 1.025 changed to 1.023
    • Malpractice GPCI 1.194 changed to 1.181

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $800.50changed to$794.98

    • 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
    • Work GPCI 1.027 changed to 1.025
    • Malpractice GPCI 1.206 changed to 1.194

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $800.50

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$914.25$509.62RVU26D
2026-07-01$914.25$509.62RVU26C
2026-04-01$914.25$509.62RVU26B
2026-01-01$914.25$509.62RVU26A
2025-10-01$856.60$530.92RVU25D
2025-07-01$856.60$530.92RVU25C
2025-04-01$856.60$530.92RVU25B
2025-01-01$856.60$530.92RVU25A
2024-10-01$892.23$544.16RVU24D
2024-07-01$892.23$544.16RVU24C
2024-04-01$892.23$544.16RVU24B
2024-03-09$892.23$544.16RVU24AR
2024-01-01$877.67$535.28RVU24A
2023-10-01$904.54$545.03RVU23D
2023-07-01$904.54$545.03RVU23C
2023-04-01$904.54$545.03RVU23B
2023-01-01$904.54$545.03RVU23A
2022-10-01$924.59$549.10RVU22D
2022-07-01$924.59$549.10RVU22C
2022-04-01$924.59$549.10RVU22B
2022-01-01$924.59$549.10RVU22A
2021-10-01$946.87$546.85RVU21D
2021-07-01$946.87$546.85RVU21C
2021-04-01$946.87$546.85RVU21B
2021-01-01$946.87$546.85RVU21A
2020-10-01$947.80$553.80RVU20D
2020-07-01$947.80$553.80RVU20C
2020-04-01$947.80$553.80RVU20B
2020-01-01$947.80$553.80RVU20A
2019-10-01$953.28$551.16RVU19D
2019-07-01$953.28$551.16RVU19C
2019-04-01$953.28$551.16RVU19B
2019-01-01$953.28$551.16RVU19A
2018-10-01$958.47$549.30RVU18D
2018-07-01$958.47$549.30RVU18C
2018-04-01$958.47$549.30RVU18B
2018-01-01$958.47$549.30RVU18AR1
2017-10-01$949.37$545.02RVU17D
2017-07-01$949.37$545.02RVU17C
2017-04-01$949.37$545.02RVU17B
2017-01-01$949.37$545.02RVU17A
2016-10-01$799.16$552.89RVU16D
2016-07-01$799.16$552.89RVU16C
2016-04-01$799.16$552.89RVU16B
2016-01-01$799.16$552.89RVU16A
2015-10-01$800.50$553.74RVU15D
2015-07-01$800.50$553.74RVU15C
2015-04-01$796.52$550.98RVU15B
2015-01-01$796.52$550.98RVU15A
2014-10-01$794.98$551.73RVU14D
2014-07-01$794.98$551.73RVU14C
2014-04-01$794.98$551.73RVU14B
2014-01-01$794.98$551.73RVU14A
2013-10-01$800.50$544.09RVU13D
2013-07-01$800.50$544.09RVU13C
2013-04-01$800.50$544.09RVU13B
2013-01-01$800.50$544.09RVU13AR

Price 28298 for an earlier date of service

Where the Baltimore area, MD rate applies

Baltimore area, MD is a Medicare payment area, not a city. Our Census mapping connects it to 100 cities and communities in Maryland. Some span more than one payment area; confirm with the service ZIP.

  • Baltimore
  • Aberdeen
  • Aberdeen Proving Ground
  • Abingdon
  • Annapolis
  • Annapolis Neck
  • Arbutus
  • Arden on the Severn

Browse all communities in Maryland

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 Baltimore area, MDGPCI2026.csv, line 60 (RVU26D)

Open CMS sourceHow we calculate rates

Did this answer your question about what 28298 pays in Baltimore area, MD?

Tell us what you were actually trying to work out. We’ll answer you directly, or build the page that does.

Fee sheets · Coming soon

Put 28298 and the rest of your codes on one sheet

Your codes at your locality, with payer contracts beside Medicare.

Join the waitlist