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CMS RVU26D · Effective 2026-10-01

28310 in El Centro

Office / nonfacility

$592.65

Base rate per service

Facility setting

$356.53

Base rate per service

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.

Foot surgery

About 28310: First-toe proximal phalanx osteotomy

A foot surgeon reshapes the proximal phalanx of the great toe to correct angular or rotational deformity, including an Akin-type correction.

This procedure uses a bone cut in the proximal phalanx of the great toe to change its alignment or length. Foot and ankle orthopedic surgeons and podiatrists may perform it for a phalangeal deformity, such as hallux valgus interphalangeus, or as an Akin-type correction during hallux valgus surgery. It is performed in an operating room or, in selected cases, an office-based procedure setting. It addresses the toe bone, not the first metatarsal.

Report the code when the operative work is an osteotomy of the great toe’s proximal phalanx. The operative report should identify the bone, the deformity and the correction performed, and clarify whether the osteotomy is part of a broader hallux valgus procedure. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures occur 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 is restricted; co-surgeons require supporting documentation, and team surgery is not permitted.

CMS billing rules for 28310

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 paid only with supporting documentation.
Team surgery
Team surgery not permitted.

Where the value comes from

  • Work RVU5.43 · 32%
  • Practice expense (office) RVU10.82 · 64%
  • Malpractice RVU0.67 · 4%

1.9K

Medicare services in 2024 · #2524 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.

28310 compared with similar codes

Office rates for El Centro, from the same CMS release.

28312

Toe osteotomy

Lesser toe

$627.67

Choose 28310 for the great toe’s proximal phalanx; 28312 is for phalanges of other toes.

28298

Bunion correction

Proximal phalanx osteotomy

$904.71

28298 describes hallux valgus correction that includes a proximal phalanx osteotomy. Use 28310 when reporting the phalanx osteotomy itself rather than that combined correction.

28306

Metatarsal osteotomy

First metatarsal

$657.95

28306 is an osteotomy of the first metatarsal. Code 28310 targets the proximal phalanx of the great toe.

28296

Bunion correction

Distal first metatarsal osteotomy

$931.85

28296 represents hallux valgus correction with a first metatarsal osteotomy; 28310 is directed to the great-toe proximal phalanx.

The same code, a different location

How does El Centro compare?

In Bakersfield, the office rate for 28310 is $594.53—$1.88 higher than the $592.65 rate in El Centro. Both use the same code, release and participation basis.

28310 across payment areas

Same release and payment basis · bars start at $0

  1. El Centro · This locality

    $592.65

  2. Bakersfield

    $594.53

    $1.88 higher than El Centro

  3. Chico

    $592.54

    $0.11 lower than El Centro

  4. Fresno

    $592.54

    $0.11 lower than El Centro

  5. Hanford-Corcoran

    $592.54

    $0.11 lower than El Centro

  6. Los Angeles-Long Beach-Anaheim (Los Angeles/Orange Cnty)

    $631.20

    $38.55 higher than El Centro

  7. Madera

    $592.54

    $0.11 lower than El Centro

Other payment areas listed in California appear first, followed by selected cross-country examples. The chart compares amounts, not distance.

Across 109 of 109 CMS payment localities with a supported office rate, 28310 ranges from $503.33 in Arkansas to $734.45 in San Jose-Sunnyvale-Santa Clara (San Benito Cnty). This is a geographic range, not an average.

The code’s RVUs stay the same in these comparisons. Geographic adjustments to work, practice expense and malpractice change the dollar amount. A city name alone may not identify the payment area for a service address.

Compare all 108 other payment areas

  • Merced

    California · 28310

    Office

    $592.54

    Facility

    $356.42

    $0.11 lower than El Centro for the office setting.

  • Modesto

    California · 28310

    Office

    $592.54

    Facility

    $356.42

    $0.11 lower than El Centro for the office setting.

  • Napa

    California · 28310

    Office

    $680.48

    Facility

    $396.54

    $87.83 higher than El Centro for the office setting.

  • Oxnard-Thousand Oaks-Ventura

    California · 28310

    Office

    $627.56

    Facility

    $372.91

    $34.91 higher than El Centro for the office setting.

  • Redding

    California · 28310

    Office

    $592.54

    Facility

    $356.42

    $0.11 lower than El Centro for the office setting.

  • Rest Of California

    California · 28310

    Office

    $592.54

    Facility

    $356.42

    $0.11 lower than El Centro for the office setting.

  • Riverside-San Bernardino-Ontario

    California · 28310

    Office

    $599.81

    Facility

    $363.69

    $7.16 higher than El Centro for the office setting.

  • Sacramento-Roseville-Folsom

    California · 28310

    Office

    $620.20

    Facility

    $369.64

    $27.55 higher than El Centro for the office setting.

  • Salinas

    California · 28310

    Office

    $617.84

    Facility

    $368.15

    $25.19 higher than El Centro for the office setting.

  • San Diego-Chula Vista-Carlsbad

    California · 28310

    Office

    $631.17

    Facility

    $373.51

    $38.52 higher than El Centro for the office setting.

  • San Francisco-Oakland-Berkeley (Marin Cnty)

    California · 28310

    Office

    $718.44

    Facility

    $414.67

    $125.79 higher than El Centro for the office setting.

  • San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty)

    California · 28310

    Office

    $717.68

    Facility

    $413.91

    $125.03 higher than El Centro for the office setting.

  • San Jose-Sunnyvale-Santa Clara (San Benito Cnty)

    California · 28310

    Office

    $734.45

    Facility

    $423.79

    $141.80 higher than El Centro for the office setting.

  • San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty)

    California · 28310

    Office

    $731.34

    Facility

    $420.68

    $138.69 higher than El Centro for the office setting.

  • San Luis Obispo-Paso Robles

    California · 28310

    Office

    $608.08

    Facility

    $362.70

    $15.43 higher than El Centro for the office setting.

  • Santa Cruz-Watsonville

    California · 28310

    Office

    $636.27

    Facility

    $374.51

    $43.62 higher than El Centro for the office setting.

  • Santa Maria-Santa Barbara

    California · 28310

    Office

    $619.83

    Facility

    $368.63

    $27.18 higher than El Centro for the office setting.

  • Santa Rosa-Petaluma

    California · 28310

    Office

    $642.60

    Facility

    $378.04

    $49.95 higher than El Centro for the office setting.

  • Stockton

    California · 28310

    Office

    $592.54

    Facility

    $356.42

    $0.11 lower than El Centro for the office setting.

  • Vallejo

    California · 28310

    Office

    $679.39

    Facility

    $395.44

    $86.74 higher than El Centro for the office setting.

  • Visalia

    California · 28310

    Office

    $592.54

    Facility

    $356.42

    $0.11 lower than El Centro for the office setting.

  • Yuba City

    California · 28310

    Office

    $592.54

    Facility

    $356.42

    $0.11 lower than El Centro for the office setting.

  • Dc + Md/Va Suburbs

    District of Columbia · 28310

    Office

    $641.79

    Facility

    $388.01

    $49.14 higher than El Centro for the office setting.

  • Miami

    Florida · 28310

    Office

    $614.18

    Facility

    $389.91

    $21.53 higher than El Centro for the office setting.

  • Chicago

    Illinois · 28310

    Office

    $597.20

    Facility

    $380.69

    $4.55 higher than El Centro for the office setting.

  • Manhattan

    New York · 28310

    Office

    $648.41

    Facility

    $398.07

    $55.76 higher than El Centro for the office setting.

  • Alaska*

    Alaska · 28310

    Office

    $669.27

    Facility

    $439.83

    $76.62 higher than El Centro for the office setting.

  • Alabama

    Alabama · 28310

    Office

    $510.26

    Facility

    $321.75

    $82.39 lower than El Centro for the office setting.

  • Arkansas

    Arkansas · 28310

    Office

    $503.33

    Facility

    $318.27

    $89.32 lower than El Centro for the office setting.

  • Arizona

    Arizona · 28310

    Office

    $550.72

    Facility

    $341.96

    $41.93 lower than El Centro for the office setting.

  • Colorado

    Colorado · 28310

    Office

    $585.55

    Facility

    $356.32

    $7.10 lower than El Centro for the office setting.

  • Connecticut

    Connecticut · 28310

    Office

    $601.30

    Facility

    $369.27

    $8.65 higher than El Centro for the office setting.

  • Delaware

    Delaware · 28310

    Office

    $559.45

    Facility

    $346.60

    $33.20 lower than El Centro for the office setting.

  • Fort Lauderdale

    Florida · 28310

    Office

    $587.92

    Facility

    $369.69

    $4.73 lower than El Centro for the office setting.

  • Rest Of Florida

    Florida · 28310

    Office

    $560.50

    Facility

    $354.54

    $32.15 lower than El Centro for the office setting.

  • Atlanta

    Georgia · 28310

    Office

    $575.97

    Facility

    $357.09

    $16.68 lower than El Centro for the office setting.

  • Rest Of Georgia

    Georgia · 28310

    Office

    $530.41

    Facility

    $338.24

    $62.24 lower than El Centro for the office setting.

  • Hawaii, Guam

    Hawaii · 28310

    Office

    $605.23

    Facility

    $360.28

    $12.58 higher than El Centro for the office setting.

  • Iowa

    Iowa · 28310

    Office

    $520.93

    Facility

    $323.81

    $71.72 lower than El Centro for the office setting.

  • Idaho

    Idaho · 28310

    Office

    $524.44

    Facility

    $326.24

    $68.21 lower than El Centro for the office setting.

  • East St. Louis

    Illinois · 28310

    Office

    $558.92

    Facility

    $360.72

    $33.73 lower than El Centro for the office setting.

  • Rest Of Illinois

    Illinois · 28310

    Office

    $546.30

    Facility

    $349.61

    $46.35 lower than El Centro for the office setting.

  • Suburban Chicago

    Illinois · 28310

    Office

    $593.45

    Facility

    $372.19

    $0.80 higher than El Centro for the office setting.

  • Indiana

    Indiana · 28310

    Office

    $527.26

    Facility

    $327.55

    $65.39 lower than El Centro for the office setting.

  • Kansas

    Kansas · 28310

    Office

    $519.35

    Facility

    $324.60

    $73.30 lower than El Centro for the office setting.

  • Kentucky

    Kentucky · 28310

    Office

    $523.13

    Facility

    $331.60

    $69.52 lower than El Centro for the office setting.

  • New Orleans

    Louisiana · 28310

    Office

    $546.86

    Facility

    $344.14

    $45.79 lower than El Centro for the office setting.

  • Rest Of Louisiana

    Louisiana · 28310

    Office

    $522.64

    Facility

    $331.98

    $70.01 lower than El Centro for the office setting.

  • Metropolitan Boston

    Massachusetts · 28310

    Office

    $640.23

    Facility

    $383.00

    $47.58 higher than El Centro for the office setting.

  • Rest Of Massachusetts

    Massachusetts · 28310

    Office

    $582.66

    Facility

    $355.80

    $9.99 lower than El Centro for the office setting.

  • Baltimore/Surr. Cntys

    Maryland · 28310

    Office

    $599.73

    Facility

    $368.57

    $7.08 higher than El Centro for the office setting.

  • Rest Of Maryland

    Maryland · 28310

    Office

    $569.46

    Facility

    $351.44

    $23.19 lower than El Centro for the office setting.

  • Rest Of Maine

    Maine · 28310

    Office

    $527.77

    Facility

    $329.57

    $64.88 lower than El Centro for the office setting.

  • Southern Maine

    Maine · 28310

    Office

    $553.63

    Facility

    $340.14

    $39.02 lower than El Centro for the office setting.

  • Detroit

    Michigan · 28310

    Office

    $567.85

    Facility

    $359.95

    $24.80 lower than El Centro for the office setting.

  • Rest Of Michigan

    Michigan · 28310

    Office

    $536.59

    Facility

    $339.90

    $56.06 lower than El Centro for the office setting.

  • Minnesota

    Minnesota · 28310

    Office

    $559.87

    Facility

    $338.19

    $32.78 lower than El Centro for the office setting.

  • Metropolitan Kansas City

    Missouri · 28310

    Office

    $542.58

    Facility

    $340.29

    $50.07 lower than El Centro for the office setting.

  • Metropolitan St. Louis

    Missouri · 28310

    Office

    $547.84

    Facility

    $342.75

    $44.81 lower than El Centro for the office setting.

  • Rest Of Missouri

    Missouri · 28310

    Office

    $514.69

    Facility

    $328.98

    $77.96 lower than El Centro for the office setting.

  • Mississippi

    Mississippi · 28310

    Office

    $509.07

    Facility

    $323.58

    $83.58 lower than El Centro for the office setting.

  • Montana**

    Montana · 28310

    Office

    $565.10

    Facility

    $349.66

    $27.55 lower than El Centro for the office setting.

  • North Carolina

    North Carolina · 28310

    Office

    $532.85

    Facility

    $331.85

    $59.80 lower than El Centro for the office setting.

  • North Dakota**

    North Dakota · 28310

    Office

    $551.85

    Facility

    $336.41

    $40.80 lower than El Centro for the office setting.

  • Nebraska

    Nebraska · 28310

    Office

    $523.40

    Facility

    $324.55

    $69.25 lower than El Centro for the office setting.

  • New Hampshire

    New Hampshire · 28310

    Office

    $577.16

    Facility

    $352.89

    $15.49 lower than El Centro for the office setting.

  • Northern Nj

    New Jersey · 28310

    Office

    $635.91

    Facility

    $386.01

    $43.26 higher than El Centro for the office setting.

  • Rest Of New Jersey

    New Jersey · 28310

    Office

    $607.82

    Facility

    $372.56

    $15.17 higher than El Centro for the office setting.

  • New Mexico

    New Mexico · 28310

    Office

    $539.65

    Facility

    $342.09

    $53.00 lower than El Centro for the office setting.

  • Nevada**

    Nevada · 28310

    Office

    $561.77

    Facility

    $346.12

    $30.88 lower than El Centro for the office setting.

  • Nyc Suburbs/Long Island

    New York · 28310

    Office

    $664.23

    Facility

    $408.08

    $71.58 higher than El Centro for the office setting.

  • Poughkpsie/N Nyc Suburbs

    New York · 28310

    Office

    $612.34

    Facility

    $376.43

    $19.69 higher than El Centro for the office setting.

  • Queens

    New York · 28310

    Office

    $652.42

    Facility

    $397.77

    $59.77 higher than El Centro for the office setting.

  • Rest Of New York

    New York · 28310

    Office

    $540.43

    Facility

    $335.76

    $52.22 lower than El Centro for the office setting.

  • Ohio

    Ohio · 28310

    Office

    $533.88

    Facility

    $337.19

    $58.77 lower than El Centro for the office setting.

  • Oklahoma

    Oklahoma · 28310

    Office

    $521.48

    Facility

    $329.10

    $71.17 lower than El Centro for the office setting.

  • Portland

    Oregon · 28310

    Office

    $602.43

    Facility

    $363.08

    $9.78 higher than El Centro for the office setting.

  • Rest Of Oregon

    Oregon · 28310

    Office

    $557.05

    Facility

    $342.48

    $35.60 lower than El Centro for the office setting.

  • Metropolitan Philadelphia

    Pennsylvania · 28310

    Office

    $587.54

    Facility

    $363.28

    $5.11 lower than El Centro for the office setting.

  • Rest Of Pennsylvania

    Pennsylvania · 28310

    Office

    $534.28

    Facility

    $336.51

    $58.37 lower than El Centro for the office setting.

  • Puerto Rico

    Puerto Rico · 28310

    Office

    $568.78

    Facility

    $350.98

    $23.87 lower than El Centro for the office setting.

  • Rhode Island

    Rhode Island · 28310

    Office

    $578.10

    Facility

    $355.55

    $14.55 lower than El Centro for the office setting.

  • South Carolina

    South Carolina · 28310

    Office

    $534.32

    Facility

    $335.26

    $58.33 lower than El Centro for the office setting.

  • South Dakota**

    South Dakota · 28310

    Office

    $550.28

    Facility

    $334.85

    $42.37 lower than El Centro for the office setting.

  • Tennessee

    Tennessee · 28310

    Office

    $521.89

    Facility

    $326.06

    $70.76 lower than El Centro for the office setting.

  • Austin

    Texas · 28310

    Office

    $583.92

    Facility

    $355.98

    $8.73 lower than El Centro for the office setting.

  • Beaumont

    Texas · 28310

    Office

    $531.03

    Facility

    $334.98

    $61.62 lower than El Centro for the office setting.

  • Brazoria

    Texas · 28310

    Office

    $558.42

    Facility

    $344.92

    $34.23 lower than El Centro for the office setting.

  • Dallas

    Texas · 28310

    Office

    $562.15

    Facility

    $347.58

    $30.50 lower than El Centro for the office setting.

  • Fort Worth

    Texas · 28310

    Office

    $558.83

    Facility

    $346.41

    $33.82 lower than El Centro for the office setting.

  • Galveston

    Texas · 28310

    Office

    $560.22

    Facility

    $346.29

    $32.43 lower than El Centro for the office setting.

  • Houston

    Texas · 28310

    Office

    $572.48

    Facility

    $358.55

    $20.17 lower than El Centro for the office setting.

  • Rest Of Texas

    Texas · 28310

    Office

    $544.54

    Facility

    $340.09

    $48.11 lower than El Centro for the office setting.

  • Utah

    Utah · 28310

    Office

    $541.18

    Facility

    $338.67

    $51.47 lower than El Centro for the office setting.

  • Virginia

    Virginia · 28310

    Office

    $552.42

    Facility

    $340.65

    $40.23 lower than El Centro for the office setting.

  • Virgin Islands

    United States Virgin Islands · 28310

    Office

    $568.78

    Facility

    $350.98

    $23.87 lower than El Centro for the office setting.

  • Vermont

    Vermont · 28310

    Office

    $550.47

    Facility

    $337.19

    $42.18 lower than El Centro for the office setting.

  • Rest Of Washington

    Washington · 28310

    Office

    $581.31

    Facility

    $354.45

    $11.34 lower than El Centro for the office setting.

  • Seattle (King Cnty)

    Washington · 28310

    Office

    $652.15

    Facility

    $387.81

    $59.50 higher than El Centro for the office setting.

  • Wisconsin

    Wisconsin · 28310

    Office

    $534.48

    Facility

    $328.09

    $58.17 lower than El Centro for the office setting.

  • West Virginia

    West Virginia · 28310

    Office

    $527.45

    Facility

    $340.23

    $65.20 lower than El Centro for the office setting.

  • Wyoming**

    Wyoming · 28310

    Office

    $559.32

    Facility

    $343.89

    $33.33 lower than El Centro for the office setting.

See how rates vary across the country

28310 · Office / nonfacility · Non-QP. Choose a state to explore its payment localities. A range means the amount varies within that state.

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.

$503.33

$669.27

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

View all state and territory rates as a table
State / territoryRate rangeLocalities
AK$669.271
AL$510.261
AR$503.331
AZ$550.721
CA$592.54–$734.4529
CO$585.551
CT$601.301
DC$641.791
DE$559.451
FL$560.50–$614.183
GA$530.41–$575.972
GU$605.231
HI$605.231
IA$520.931
ID$524.441
IL$546.30–$597.204
IN$527.261
KS$519.351
KY$523.131
LA$522.64–$546.862
MA$582.66–$640.232
MD$569.46–$641.793
ME$527.77–$553.632
MI$536.59–$567.852
MN$559.871
MO$514.69–$547.843
MS$509.071
MT$565.101
NC$532.851
ND$551.851
NE$523.401
NH$577.161
NJ$607.82–$635.912
NM$539.651
NV$561.771
NY$540.43–$664.235
OH$533.881
OK$521.481
OR$557.05–$602.432
PA$534.28–$587.542
PR$568.781
RI$578.101
SC$534.321
SD$550.281
TN$521.891
TX$531.03–$583.928
UT$541.181
VA$552.42–$641.792
VI$568.781
VT$550.471
WA$581.31–$652.152
WI$534.481
WV$527.451
WY$559.321

Explore 28310 on the national rate map →

Where does this rate apply?

El Centro is a Medicare payment area. Our Census mapping connects it to 18 cities and communities in California, including the examples shown here.

Some communities span more than one payment area. Follow a city link to compare all of its mapped areas, or check the service-location ZIP above for an address-level starting point.

Browse all communities in California →

Why are the office and facility amounts different?

For 28310 in El Centro, the physician’s office rate is $592.65 and the facility-setting rate is $356.53: a difference of $236.12.

The calculation uses a different practice-expense RVU for each setting. Both amounts here are physician fee-schedule amounts. The facility figure does not include a hospital’s separate charges, so this comparison does not tell you the total cost of receiving care in each setting.

See the inputs behind this difference →

Use this rate

What is a percentage of Medicare worth?

Turn a percentage into dollars for 28310 in El Centro. This uses the base rate on this page, so the locality and release stay consistent.

Reference amount per service

$651.92

$592.65 × 110% = $651.92

A contract may specify another Medicare year or additional adjustments. This is percentage arithmetic on the displayed base rate, not a claim adjudication.

Working with a whole code list?

Compare an offer across your annual code mix, including an older Medicare schedule or flat per-code rates.

Compare your contract offer →

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 28310 in El Centro.

PPRRVU2026_Oct_nonQPP.csv

3,187

Code
28310
Physician work
5.43
Practice expense
10.82
Malpractice
0.67

GPCI2026.csv

10

Locality
El Centro
Physician work
1.017
Practice expense
1.096
Malpractice
0.541
Office / nonfacility calculation for 28310 in El Centro
ComponentRVULocality factorAdjusted
Physician work5.43× 1.0175.5223
Practice expense10.82× 1.09611.8587
Malpractice0.67× 0.5410.3625
Total RVUs17.7435
Conversion factor× 33.4009

Office / nonfacility rate, El Centro$592.65

Values as parsed from CMS release RVU26D, effective 2026-10-01. The amount is rounded to the nearest cent only at the end.

Open 28310 in the RVU calculator →

Explore RVUs, geographic factors and the full formula

Office / nonfacility

Office / nonfacility calculation inputs
ComponentRVULocal GPCI
Work5.431.017
Practice expense10.821.096
Malpractice0.670.541

(5.43 × 1.017 + 10.82 × 1.096 + 0.67 × 0.541) × $33.4009 = $592.65

Facility

Facility calculation inputs
ComponentRVULocal GPCI
Work5.431.017
Practice expense4.371.096
Malpractice0.670.541

(5.43 × 1.017 + 4.37 × 1.096 + 0.67 × 0.541) × $33.4009 = $356.53

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.

How this rate has changed

28310 · Office / nonfacility

$592.65

Effective 2026-10-01

The base rate is $34.36 higher than on 2025-10-01, moving from $558.29 to $592.65 (6.2%).

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

    $558.29changed to$592.65

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 5.57 changed to 5.43
    • Practice expense RVU 10.29 changed to 10.82
    • Malpractice RVU 0.64 changed to 0.67
    • Work GPCI 1.014 changed to 1.017
    • Practice expense GPCI 1.093 changed to 1.096
    • Malpractice GPCI 0.570 changed to 0.541

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    Earliest loaded release: $558.29

    Held through RVU25B, RVU25C, RVU25D.

Explore release dates and calculate this code in an earlier period →

Each row uses the accepted CMS release effective on that date and the same contractor and locality identifiers. Missing rates stay visible. Historical boundaries may differ; verify the service address for an older claim.

Inspect every release and its CMS source
Effective fromOffice / nonfacilityFacilityCMS release
2026-10-01$592.65$356.53RVU26D
2026-07-01$592.65$356.53RVU26C
2026-04-01$592.65$356.53RVU26B
2026-01-01$592.65$356.53RVU26A
2025-10-01$558.29$371.27RVU25D
2025-07-01$558.29$371.27RVU25C
2025-04-01$558.29$371.27RVU25B
2025-01-01$558.29$371.27RVU25A

28310 billing questions

How is this different from 28312?

This code is for an osteotomy of the proximal phalanx of the great toe. Code 28312 covers phalanges of other toes.

When should 28298 be considered instead?

Code 28298 represents hallux valgus correction that includes a proximal phalanx osteotomy. Use it when the documented work is that combined correction, rather than reporting the same osteotomy separately as 28310.

Can this be reported with a first metatarsal osteotomy?

The procedures address different bones: 28310 treats the great toe’s proximal phalanx, while codes such as 28306 treat a metatarsal. The operative report should support each distinct procedure reported.

What documentation supports reporting this code?

Document the great-toe proximal phalanx, the deformity being corrected, and the osteotomy and resulting change in alignment or length. Clarify whether the work is included in a broader hallux valgus correction.

How is bilateral surgery paid?

CMS lists this as a bilateral procedure: when both sides are performed and reported with modifier 50, payment is at 150%.

Can an assistant or co-surgeon be reported?

Assistant-at-surgery payment is restricted for this code. 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 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.

RVUs for 28310PPRRVU2026_Oct_nonQPP.csv, line 3,187 (RVU26D)
Geographic factors for El CentroGPCI2026.csv, line 10 (RVU26D)
Open CMS sourceHow this rate is calculatedBuild a fee sheet