CPT code 40843: Mouth reconstruction, extensive, with skin graft2026 Medicare rate & RVUs in Connecticut

Reported for extensive mouth reconstruction using a skin graft to repair a substantial defect, with selection based on the reconstruction and graft documented.

CMS RVU26DEffective Oct 1, 2026One payment locality

In Connecticut, Medicare pays $1,380.51 for 40843 in the office and $825.09 when it’s performed in a hospital or facility.

$1,380.51Office (non-facility)
$825.09Hospital or facility
+6.7%vs the national office rate ($1,294.28)

Check a contract rate as a % of Medicare · 40843 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 40843 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Connecticut
  2. What 40843 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 40843 covers

This service reconstructs an extensive area of the mouth using a skin graft, including obtaining the graft. Oral and maxillofacial surgeons, plastic surgeons, or otolaryngologists may perform it to repair a substantial oral defect, such as one resulting from tumor removal or significant trauma. The operative report should describe the extent of reconstruction, the defect repaired, and the graft used.

Report this code when the documented service is extensive reconstruction with a skin graft; distinguish it from reconstruction with a free mucosal graft or split-thickness skin graft. Medicare coverage is restricted to specific circumstances. The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care. For multiple procedures in the same session, the highest-valued procedure is paid in full and the others are subject to a 50% reduction. The code is priced as bilateral, so modifier 50 does not increase payment. An assistant at surgery may be paid; co-surgeons and team surgery are 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 Connecticut compares for 40843

Across 109 of 109 payment localities, the office rate for 40843 runs from $1,143.86 in Arkansas to $1,657.87 in San Benito County, CA. Connecticut pays $1,380.51. The RVUs are the same everywhere; the geographic indexes change the dollars.

40843 in Connecticut vs other payment areas
  1. Connecticut · this page$1,380.51
  2. Los Angeles, CA · California$1,431.78+$51.27
  3. Washington, DC area · District of Columbia$1,467.98+$87.47
  4. Miami, FL · Florida$1,445.58+$65.07
  5. Chicago, IL · Illinois$1,401.55+$21.04
  6. Manhattan, NY · New York$1,496.00+$115.49
  7. Alaska · Alaska$1,519.76+$139.25

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

Every other payment area

40843 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$1,160.62$709.37
ArkansasArkansas$1,143.86$700.87
ArizonaArizona$1,258.32$758.59
Bakersfield, CACalifornia$1,348.73$783.51
Chico, CACalifornia$1,342.24$777.02
El Centro, CACalifornia$1,342.62$777.41
Fresno, CACalifornia$1,342.24$777.02
Hanford, CACalifornia$1,342.24$777.02

40843 rates by state

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

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.

$1,143.86

$1,519.76

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

View every state and territory as a table
40843 office rate range by state
State / territoryOffice rate rangeLocalities
AK$1,519.761
AL$1,160.621
AR$1,143.861
AZ$1,258.321
CA$1,342.24–$1,657.8729
CO$1,333.531
CT$1,380.511
DC$1,467.981
DE$1,278.941
FL$1,298.05–$1,445.583
GA$1,222.73–$1,323.912
GU$1,371.301
HI$1,371.301
IA$1,179.531
ID$1,189.421
IL$1,268.29–$1,401.554
IN$1,196.031
KS$1,179.021
KY$1,198.871
LA$1,199.00–$1,257.612
MA$1,327.63–$1,458.092
MD$1,301.70–$1,467.983
ME$1,200.97–$1,258.492
MI$1,234.66–$1,319.432
MN$1,262.941
MO$1,181.83–$1,256.033
MS$1,162.821
MT$1,294.131
NC$1,212.691
ND$1,248.261
NE$1,184.461
NH$1,317.411
NJ$1,392.09–$1,453.842
NM$1,243.441
NV$1,282.141
NY$1,231.26–$1,538.605
OH$1,225.281
OK$1,191.371
OR$1,268.07–$1,369.942
PA$1,224.40–$1,349.552
PR$1,301.931
RI$1,320.241
SC$1,221.841
SD$1,242.831
TN$1,185.581
TX$1,216.76–$1,332.708
UT$1,238.361
VA$1,257.90–$1,467.982
VI$1,301.931
VT$1,248.001
WA$1,323.59–$1,482.592
WI$1,207.051
WV$1,222.851
WY$1,274.141

See 40843 in every payment locality

How the 40843 rate is calculated

Each of 40843’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 · 40843

RVUs × geographic indexes × conversion factor

Office or facility?

Work12.47

12.47 RVUs× 1.000 GPCI

Practice expense23.96

23.96 RVUs× 1.000 GPCI

Malpractice2.32

2.32 RVUs× 1.000 GPCI

Adjusted RVUs

38.7500

Conversion factor

$33.4009

Medicare rate

$1,294.28

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

The exact Connecticut inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

4,874

Code
40843
Physician work
12.47
Practice expense
23.96
Malpractice
2.32

GPCI2026.csv

38

Locality
Connecticut
Physician work
1.020
Practice expense
1.077
Malpractice
1.210
Office calculation for 40843 in Connecticut
ComponentRVULocality factorAdjusted
Physician work12.47× 1.02012.7194
Practice expense23.96× 1.07725.8049
Malpractice2.32× 1.2102.8072
Total RVUs41.3315
Conversion factor× 33.4009

Office rate, Connecticut$1380.51

Office: (12.47 × 1.02 + 23.96 × 1.077 + 2.32 × 1.21) × $33.4009 = $1380.51

Facility: (12.47 × 1.02 + 8.52 × 1.077 + 2.32 × 1.21) × $33.4009 = $825.09

Open 40843 in the RVU calculator

Payment rules and modifiers for 40843

40843 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 40843

Mouth reconstruction, extensive, with skin graft

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)2Already bilateral by definition: paid once at 100%.
Assistant at surgery (80/81/82/AS)2Paid.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.09/0.81/0.10Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 40843

Mouth reconstruction, extensive, with skin graft

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 51 · payment effect

With and without the modifier

40843 without 51 · national office

$1,294.28

Mouth reconstruction, extensive, with skin graft

40843-51 · Second procedure: 50%

$647.14

When this isn’t the highest-valued procedure in the session, Medicare pays 50% of its fee schedule amount (the highest is paid at 100%).

When to use modifier 51

How 40843 has changed in Connecticut

40843 · Office / nonfacility

$1380.51

Effective 2026-10-01

The base rate is $123.17 higher than on 2025-10-01, moving from $1257.34 to $1380.51 (9.8%).

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

    $1257.34changed to$1380.51

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 12.79 changed to 12.47
    • Practice expense RVU 21.07 changed to 23.96
    • Malpractice RVU 2.33 changed to 2.32
    • Work GPCI 1.022 changed to 1.020
    • Practice expense GPCI 1.091 changed to 1.077
    • Malpractice GPCI 1.207 changed to 1.210

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $1291.13changed to$1257.34

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 20.96 changed to 21.07
    • Malpractice RVU 2.36 changed to 2.33

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $1270.06changed to$1291.13

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $1314.03changed to$1270.06

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 21.00 changed to 20.96
    • Malpractice RVU 2.30 changed to 2.36
    • Work GPCI 1.030 changed to 1.022
    • Practice expense GPCI 1.102 changed to 1.091
    • Malpractice GPCI 1.070 changed to 1.207
  5. January 1, 2023

    RVU23A

    $1330.77changed to$1314.03

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 20.66 changed to 21.00
    • Malpractice RVU 2.33 changed to 2.30
    • Work GPCI 1.037 changed to 1.030
    • Practice expense GPCI 1.114 changed to 1.102
    • Malpractice GPCI 0.934 changed to 1.070

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $1332.91changed to$1330.77

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 20.49 changed to 20.66
    • Malpractice RVU 2.26 changed to 2.33

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $1332.22changed to$1332.91

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 19.13 changed to 20.49
    • Malpractice RVU 2.25 changed to 2.26
    • Work GPCI 1.029 changed to 1.037
    • Practice expense GPCI 1.113 changed to 1.114
    • Malpractice GPCI 1.094 changed to 0.934

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $1176.41changed to$1332.22

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 15.14 changed to 19.13
    • Malpractice RVU 2.19 changed to 2.25
    • Work GPCI 1.021 changed to 1.029
    • Practice expense GPCI 1.112 changed to 1.113
    • Malpractice GPCI 1.255 changed to 1.094

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $1201.59changed to$1176.41

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 15.88 changed to 15.14
    • Malpractice RVU 2.12 changed to 2.19

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $1224.60changed to$1201.59

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 16.44 changed to 15.88
    • Malpractice RVU 2.15 changed to 2.12
    • Work GPCI 1.023 changed to 1.021
    • Practice expense GPCI 1.117 changed to 1.112
    • Malpractice GPCI 1.244 changed to 1.255

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $1228.43changed to$1224.60

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 16.56 changed to 16.44
    • Work GPCI 1.024 changed to 1.023
    • Practice expense GPCI 1.121 changed to 1.117
    • Malpractice GPCI 1.232 changed to 1.244

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $1238.06changed to$1228.43

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 16.70 changed to 16.56
    • Malpractice RVU 2.14 changed to 2.15

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $1231.90changed to$1238.06

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $1248.54changed to$1231.90

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 16.83 changed to 16.70
    • Malpractice RVU 2.41 changed to 2.14
    • Practice expense GPCI 1.116 changed to 1.121
    • Malpractice GPCI 1.234 changed to 1.232

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $1230.13changed to$1248.54

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 17.97 changed to 16.83
    • Malpractice RVU 2.52 changed to 2.41
    • Practice expense GPCI 1.110 changed to 1.116
    • Malpractice GPCI 1.235 changed to 1.234

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $1230.13

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$1,380.51$825.09RVU26D
2026-07-01$1,380.51$825.09RVU26C
2026-04-01$1,380.51$825.09RVU26B
2026-01-01$1,380.51$825.09RVU26A
2025-10-01$1,257.34$911.85RVU25D
2025-07-01$1,257.34$911.85RVU25C
2025-04-01$1,257.34$911.85RVU25B
2025-01-01$1,257.34$911.85RVU25A
2024-10-01$1,291.13$929.78RVU24D
2024-07-01$1,291.13$929.78RVU24C
2024-04-01$1,291.13$929.78RVU24B
2024-03-09$1,291.13$929.78RVU24AR
2024-01-01$1,270.06$914.60RVU24A
2023-10-01$1,314.03$939.48RVU23D
2023-07-01$1,314.03$939.48RVU23C
2023-04-01$1,314.03$939.48RVU23B
2023-01-01$1,314.03$939.48RVU23A
2022-10-01$1,330.77$944.87RVU22D
2022-07-01$1,330.77$944.87RVU22C
2022-04-01$1,330.77$944.87RVU22B
2022-01-01$1,330.77$944.87RVU22A
2021-10-01$1,332.91$948.09RVU21D
2021-07-01$1,332.91$948.09RVU21C
2021-04-01$1,332.91$948.09RVU21B
2021-01-01$1,332.91$948.09RVU21A
2020-10-01$1,332.22$979.94RVU20D
2020-07-01$1,332.22$979.94RVU20C
2020-04-01$1,332.22$979.94RVU20B
2020-01-01$1,332.22$979.94RVU20A
2019-10-01$1,176.41$916.32RVU19D
2019-07-01$1,176.41$916.32RVU19C
2019-04-01$1,176.41$916.32RVU19B
2019-01-01$1,176.41$916.32RVU19A
2018-10-01$1,201.59$940.18RVU18D
2018-07-01$1,201.59$940.18RVU18C
2018-04-01$1,201.59$940.18RVU18B
2018-01-01$1,201.59$940.18RVU18AR1
2017-10-01$1,224.60$963.23RVU17D
2017-07-01$1,224.60$963.23RVU17C
2017-04-01$1,224.60$963.23RVU17B
2017-01-01$1,224.60$963.23RVU17A
2016-10-01$1,228.43$961.52RVU16D
2016-07-01$1,228.43$961.52RVU16C
2016-04-01$1,228.43$961.52RVU16B
2016-01-01$1,228.43$961.52RVU16A
2015-10-01$1,238.06$975.83RVU15D
2015-07-01$1,238.06$975.83RVU15C
2015-04-01$1,231.90$970.97RVU15B
2015-01-01$1,231.90$970.97RVU15A
2014-10-01$1,248.54$990.28RVU14D
2014-07-01$1,248.54$990.28RVU14C
2014-04-01$1,248.54$990.28RVU14B
2014-01-01$1,248.54$990.28RVU14A
2013-10-01$1,230.13$962.37RVU13D
2013-07-01$1,230.13$962.37RVU13C
2013-04-01$1,230.13$962.37RVU13B
2013-01-01$1,230.13$962.37RVU13AR

Price 40843 for an earlier date of service

Where the Connecticut rate applies

Connecticut is a Medicare payment area, not a city. Our Census mapping connects it to 215 cities and communities in Connecticut. Some span more than one payment area; confirm with the service ZIP.

  • Ansonia
  • Ball Pond
  • Baltic
  • Bantam
  • Bethel
  • Bethlehem Village
  • Bigelow Corners
  • Blue Hills

Browse all communities in Connecticut

40843 billing questions

How is this code distinguished from 40842?

40843 is for extensive mouth reconstruction with a skin graft. 40842 describes extensive reconstruction without specifying a graft type.

When should 40844 or 40845 be considered instead?

40844 is for extensive reconstruction with a free mucosal graft, and 40845 is for extensive reconstruction with a split-thickness skin graft. Select based on the graft used and documented.

Can graft harvesting be reported separately?

No. The service includes obtaining the skin graft, so do not separately report graft acquisition.

Can modifier 50 increase payment?

No. CMS prices this code as bilateral, and modifier 50 does not increase payment.

What postoperative care is included?

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

Can an assistant or another surgeon be reported?

An assistant at surgery may be paid. Co-surgeons and team surgery are not permitted for this code under the CMS rules provided.

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 40843PPRRVU2026_Oct_nonQPP.csv, line 4,874 (RVU26D)
Geographic factors for ConnecticutGPCI2026.csv, line 38 (RVU26D)

Open CMS sourceHow we calculate rates

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