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CPT code 28740: Foot fusion, single midtarsal or tarsometatarsal joint2026 Medicare rate & RVUs in King County, WA

Reports surgical fusion of one midtarsal or tarsometatarsal joint, commonly for painful arthritis, instability, or deformity requiring permanent stabilization.

CMS RVU26DEffective Oct 1, 2026One payment locality5.7K Medicare services in 2024

In King County, WA, Medicare pays $969.74 for 28740 in the office and $637.37 when it’s performed in a hospital or facility.

$969.74Office (non-facility)
$637.37Hospital or facility
+14.3%vs the national office rate ($848.38)

Check a contract rate as a % of Medicare · 28740 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 28740 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in King County, WA
  2. What 28740 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 28740 covers

An orthopedic or podiatric surgeon fuses one midtarsal or tarsometatarsal joint to reduce painful motion and stabilize the foot. The operation typically prepares the joint surfaces for bone healing and holds the bones in position with fixation. Common clinical settings include operative treatment of arthritic or unstable midfoot joints, including a single tarsometatarsal joint. The service is generally performed in a hospital or ambulatory surgery center.

Report this code when the operative documentation supports fusion of one joint in the midtarsal or tarsometatarsal region. A fusion involving multiple joints or a transverse fusion is distinguished from this single-joint service. The procedure has a 90-day global period, which includes the day-before preoperative visit and 90 days of related postoperative care. 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 50% reduction. Modifier 50 identifies a bilateral procedure, paid at 150%. Assistant-at-surgery payment may be available; co-surgeons require 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 King County, WA compares for 28740

Across 109 of 109 payment localities, the office rate for 28740 runs from $756.61 in Arkansas to $1,083.86 in San Benito County, CA. King County, WA pays $969.74. The RVUs are the same everywhere; the geographic indexes change the dollars.

28740 in King County, WA vs other payment areas
  1. King County, WA · this page$969.74
  2. Rest of Washington · Washington$868.66−$101.08
  3. Los Angeles, CA · California$938.30−$31.44
  4. Washington, DC area · District of Columbia$959.07−$10.67
  5. Miami, FL · Florida$934.87−$34.87
  6. Chicago, IL · Illinois$908.81−$60.93
  7. Manhattan, NY · New York$974.43+$4.69

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

Every other payment area

28740 in every other Medicare payment locality
Payment localityOfficeFacility
AlaskaAlaska$1,013.02$724.53
AlabamaAlabama$766.85$529.83
ArkansasArkansas$756.61$523.92
ArizonaArizona$826.60$564.11
Bakersfield, CACalifornia$885.54$588.66
Chico, CACalifornia$881.79$584.91
El Centro, CACalifornia$882.01$585.12
Fresno, CACalifornia$881.79$584.91

28740 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.

$756.61

$1,013.02

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

View every state and territory as a table
28740 office rate range by state
State / territoryOffice rate rangeLocalities
AK$1,013.021
AL$766.851
AR$756.611
AZ$826.601
CA$881.79–$1,083.8629
CO$874.751
CT$902.191
DC$959.071
DE$839.511
FL$847.94–$934.873
GA$802.37–$865.992
GU$899.111
HI$899.111
IA$779.671
ID$785.461
IL$828.91–$908.814
IN$789.541
KS$778.751
KY$788.921
LA$788.76–$824.582
MA$871.12–$953.572
MD$853.91–$959.073
ME$791.88–$827.962
MI$810.21–$860.352
MN$832.631
MO$777.89–$824.343
MS$767.261
MT$848.301
NC$799.151
ND$822.791
NE$782.881
NH$863.611
NJ$910.91–$950.812
NM$815.321
NV$841.691
NY$810.45–$999.685
OH$804.991
OK$784.991
OR$833.58–$897.992
PA$804.79–$882.762
PR$853.271
RI$866.071
SC$803.721
SD$819.771
TN$782.691
TX$800.08–$873.238
UT$813.831
VA$827.17–$959.072
VI$853.271
VT$822.071
WA$868.66–$969.742
WI$797.451
WV$801.101
WY$837.181

See 28740 in every payment locality

How the 28740 rate is calculated

Each of 28740’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 · 28740

RVUs × geographic indexes × conversion factor

Office or facility?

Work9.06

9.06 RVUs× 1.000 GPCI

Practice expense15.05

15.05 RVUs× 1.000 GPCI

Malpractice1.29

1.29 RVUs× 1.000 GPCI

Adjusted RVUs

25.4000

Conversion factor

$33.4009

Medicare rate

$848.38

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

The exact King County, WA inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

3,251

Code
28740
Physician work
9.06
Practice expense
15.05
Malpractice
1.29

GPCI2026.csv

108

Locality
King County, WA
Physician work
1.050
Practice expense
1.227
Malpractice
0.817
Office calculation for 28740 in King County, WA
ComponentRVULocality factorAdjusted
Physician work9.06× 1.0509.5130
Practice expense15.05× 1.22718.4664
Malpractice1.29× 0.8171.0539
Total RVUs29.0333
Conversion factor× 33.4009

Office rate, King County, WA$969.74

Office: (9.06 × 1.05 + 15.05 × 1.227 + 1.29 × 0.817) × $33.4009 = $969.74

Facility: (9.06 × 1.05 + 6.94 × 1.227 + 1.29 × 0.817) × $33.4009 = $637.37

Open 28740 in the RVU calculator

Payment rules and modifiers for 28740

28740 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 28740

Foot fusion, single midtarsal or tarsometatarsal joint

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 · 28740

Foot fusion, single midtarsal or tarsometatarsal joint

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

28740 without 50 · national office

$848.38

Foot fusion, single midtarsal or tarsometatarsal joint

28740-50 · Bilateral: 150%

$1,272.57

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 28740

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

Codes related to 28740
CodeHow it relatesOffice range, King County, WA
Same family
28730Midfoot fusion, multiple joints or transverseFor multiple-joint or transverse midtarsal or tarsometatarsal fusion.No office rate
28735Midfoot fusion, multiple joints with osteotomyFor multiple-joint or transverse fusion performed with an osteotomy.No office rate
Used instead
28725Subtalar fusion, single subtalar jointFuses the subtalar joint rather than one midtarsal or tarsometatarsal joint.No office rate
28715Hindfoot fusion, three-joint arthrodesisDescribes triple arthrodesis, a broader hindfoot fusion.No office rate

How 28740 has changed in King County, WA

28740 · Office / nonfacility

$969.74

Effective 2026-10-01

The base rate is $61.18 higher than on 2025-10-01, moving from $908.56 to $969.74 (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

    $908.56changed to$969.74

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 9.29 changed to 9.06
    • Practice expense RVU 14.20 changed to 15.05
    • Malpractice RVU 1.26 changed to 1.29
    • Work GPCI 1.043 changed to 1.050
    • Practice expense GPCI 1.220 changed to 1.227
    • Malpractice GPCI 0.853 changed to 0.817

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $938.52changed to$908.56

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 14.28 changed to 14.20
    • Malpractice RVU 1.27 changed to 1.26

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $923.20changed to$938.52

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $941.06changed to$923.20

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 14.16 changed to 14.28
    • Malpractice RVU 1.26 changed to 1.27
    • Work GPCI 1.039 changed to 1.043
    • Practice expense GPCI 1.207 changed to 1.220
    • Malpractice GPCI 0.815 changed to 0.853

  5. January 1, 2023

    RVU23A

    $944.39changed to$941.06

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 13.95 changed to 14.16
    • Malpractice RVU 1.30 changed to 1.26
    • Work GPCI 1.036 changed to 1.039
    • Practice expense GPCI 1.194 changed to 1.207
    • Malpractice GPCI 0.776 changed to 0.815

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $960.45changed to$944.39

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 14.18 changed to 13.95
    • Malpractice RVU 1.25 changed to 1.30

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $960.98changed to$960.45

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 13.66 changed to 14.18
    • Work GPCI 1.031 changed to 1.036
    • Practice expense GPCI 1.170 changed to 1.194
    • Malpractice GPCI 0.854 changed to 0.776

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $955.06changed to$960.98

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 13.80 changed to 13.66
    • Malpractice RVU 1.23 changed to 1.25
    • Work GPCI 1.027 changed to 1.031
    • Practice expense GPCI 1.146 changed to 1.170
    • Malpractice GPCI 0.931 changed to 0.854

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $959.38changed to$955.06

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 13.93 changed to 13.80

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $947.32changed to$959.38

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 13.89 changed to 13.93
    • Work GPCI 1.026 changed to 1.027
    • Practice expense GPCI 1.151 changed to 1.146
    • Malpractice GPCI 0.713 changed to 0.931

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $937.08changed to$947.32

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 13.88 changed to 13.89
    • Malpractice RVU 1.25 changed to 1.23
    • Work GPCI 1.025 changed to 1.026
    • Practice expense GPCI 1.155 changed to 1.151
    • Malpractice GPCI 0.495 changed to 0.713

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $941.41changed to$937.08

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 13.89 changed to 13.88
    • Malpractice RVU 1.28 changed to 1.25

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $936.73changed to$941.41

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $943.31changed to$936.73

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 13.84 changed to 13.89
    • Malpractice RVU 1.30 changed to 1.28
    • Practice expense GPCI 1.150 changed to 1.155
    • Malpractice GPCI 0.688 changed to 0.495

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $953.25changed to$943.31

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 15.12 changed to 13.84
    • Malpractice RVU 1.36 changed to 1.30
    • Practice expense GPCI 1.144 changed to 1.150
    • Malpractice GPCI 0.881 changed to 0.688

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $953.25

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$969.74$637.37RVU26D
2026-07-01$969.74$637.37RVU26C
2026-04-01$969.74$637.37RVU26B
2026-01-01$969.74$637.37RVU26A
2025-10-01$908.56$671.39RVU25D
2025-07-01$908.56$671.39RVU25C
2025-04-01$908.56$671.39RVU25B
2025-01-01$908.56$671.39RVU25A
2024-10-01$938.52$687.14RVU24D
2024-07-01$938.52$687.14RVU24C
2024-04-01$938.52$687.14RVU24B
2024-03-09$938.52$687.14RVU24AR
2024-01-01$923.20$675.92RVU24A
2023-10-01$941.06$685.42RVU23D
2023-07-01$941.06$685.42RVU23C
2023-04-01$941.06$685.42RVU23B
2023-01-01$941.06$685.42RVU23A
2022-10-01$944.39$684.07RVU22D
2022-07-01$944.39$684.07RVU22C
2022-04-01$944.39$684.07RVU22B
2022-01-01$944.39$684.07RVU22A
2021-10-01$960.45$685.47RVU21D
2021-07-01$960.45$685.47RVU21C
2021-04-01$960.45$685.47RVU21B
2021-01-01$960.45$685.47RVU21A
2020-10-01$960.98$694.97RVU20D
2020-07-01$960.98$694.97RVU20C
2020-04-01$960.98$694.97RVU20B
2020-01-01$960.98$694.97RVU20A
2019-10-01$955.06$690.33RVU19D
2019-07-01$955.06$690.33RVU19C
2019-04-01$955.06$690.33RVU19B
2019-01-01$955.06$690.33RVU19A
2018-10-01$959.38$690.39RVU18D
2018-07-01$959.38$690.39RVU18C
2018-04-01$959.38$690.39RVU18B
2018-01-01$959.38$690.39RVU18AR1
2017-10-01$947.32$679.64RVU17D
2017-07-01$947.32$679.64RVU17C
2017-04-01$947.32$679.64RVU17B
2017-01-01$947.32$679.64RVU17A
2016-10-01$937.08$669.11RVU16D
2016-07-01$937.08$669.11RVU16C
2016-04-01$937.08$669.11RVU16B
2016-01-01$937.08$669.11RVU16A
2015-10-01$941.41$671.64RVU15D
2015-07-01$941.41$671.64RVU15C
2015-04-01$936.73$668.30RVU15B
2015-01-01$936.73$668.30RVU15A
2014-10-01$943.31$678.83RVU14D
2014-07-01$943.31$678.83RVU14C
2014-04-01$943.31$678.83RVU14B
2014-01-01$943.31$678.83RVU14A
2013-10-01$953.25$676.12RVU13D
2013-07-01$953.25$676.12RVU13C
2013-04-01$953.25$676.12RVU13B
2013-01-01$953.25$676.12RVU13AR

Price 28740 for an earlier date of service

Where the King County, WA rate applies

King County, WA is a Medicare payment area, not a city. Our Census mapping connects it to 63 cities and communities in Washington. Some span more than one payment area; confirm with the service ZIP.

  • Seattle
  • Algona
  • Ames Lake
  • 28740 in Auburn · multiple payment areas
  • Baring
  • Beaux Arts Village
  • Bellevue
  • Black Diamond

Browse all communities in Washington

28740 billing questions

When should 28740 be chosen over 28730?

Use 28740 for fusion of one midtarsal or tarsometatarsal joint. Code 28730 describes a multiple-joint or transverse fusion.

Does 28740 include postoperative visits?

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

How is bilateral fusion reported?

Report modifier 50 for a bilateral procedure; CMS pays it at 150%.

Can an assistant surgeon be reported?

Assistant-at-surgery payment may be available for this procedure. Co-surgeons are paid only when supporting documentation is provided.

How are other procedures in the same session paid?

The highest-valued procedure is paid in full, and other procedures are subject to the standard multiple-procedure reduction to 50%.

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 28740PPRRVU2026_Oct_nonQPP.csv, line 3,251 (RVU26D)
Geographic factors for King County, WAGPCI2026.csv, line 108 (RVU26D)

Open CMS sourceHow we calculate rates

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