CPT code 11423: Skin excision, scalp, neck, hands, feet, or genitalia2026 Medicare rate & RVUs in Montana

Removal of a benign skin lesion from the scalp, neck, hands, feet, or genitalia when its excised diameter, including margins, is 2.1 to 3.0 cm.

CMS RVU26DEffective Oct 1, 2026One payment locality14.1K Medicare services in 2024

In Montana, Medicare pays $208.74 for 11423 in the office and $143.61 when it’s performed in a hospital or facility.

$208.74Office (non-facility)
$143.61Hospital or facility
−0.0%vs the national office rate ($208.76)

Check a contract rate as a % of Medicare · 11423 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 11423 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Montana
  2. What 11423 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 11423 covers

This service removes a clinically benign skin lesion from the scalp, neck, hand, foot, or genital area, with the surrounding margin included in the excision. Dermatologists, surgeons, and other qualified clinicians commonly perform it in an office or outpatient setting. The code is selected by both the anatomic group and the excised diameter, measured across the lesion and margins; a 2.1-to-3.0 cm measurement falls in this size level.

The operative note should identify the site, lesion, and excised diameter, including margins. A simple closure is included in the excision; a separately reportable more extensive repair may be coded when supported. This is a minor procedure with a 10-day global period, so related postoperative visits during that period are included. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and the others are subject to the standard 50% reduction. Modifier 50 is inappropriate. Medicare does not pay an assistant at surgery for this service, and co-surgeon and team-surgery billing 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 Montana compares for 11423

Across 109 of 109 payment localities, the office rate for 11423 runs from $185.68 in Arkansas to $270.57 in San Benito County, CA. Montana pays $208.74. The RVUs are the same everywhere; the geographic indexes change the dollars.

11423 in Montana vs other payment areas
  1. Montana · this page$208.74
  2. Los Angeles, CA · California$232.74+$24.00
  3. Washington, DC area · District of Columbia$237.00+$28.26
  4. Miami, FL · Florida$227.98+$19.24
  5. Chicago, IL · Illinois$221.57+$12.83
  6. Manhattan, NY · New York$239.82+$31.08
  7. Alaska · Alaska$246.89+$38.15

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

Every other payment area

11423 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$188.27$131.28
ArkansasArkansas$185.68$129.74
ArizonaArizona$203.35$140.23
Bakersfield, CACalifornia$219.23$147.85
Chico, CACalifornia$218.44$147.06
El Centro, CACalifornia$218.49$147.10
Fresno, CACalifornia$218.44$147.06
Hanford, CACalifornia$218.44$147.06

11423 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.

$185.68

$246.89

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

View every state and territory as a table
11423 office rate range by state
State / territoryOffice rate rangeLocalities
AK$246.891
AL$188.271
AR$185.681
AZ$203.351
CA$218.44–$270.5729
CO$216.071
CT$222.201
DC$237.001
DE$206.591
FL$207.46–$227.983
GA$196.17–$212.892
GU$223.131
HI$223.131
IA$192.051
ID$193.391
IL$202.30–$221.574
IN$194.441
KS$191.551
KY$193.271
LA$193.13–$202.162
MA$215.03–$236.242
MD$210.28–$237.003
ME$194.74–$204.232
MI$198.38–$210.302
MN$206.251
MO$190.22–$202.413
MS$187.971
MT$208.741
NC$196.621
ND$203.401
NE$192.941
NH$213.071
NJ$224.52–$234.812
NM$199.561
NV$207.381
NY$199.45–$245.845
OH$197.291
OK$192.561
OR$205.55–$222.242
PA$197.39–$217.142
PR$210.081
RI$213.431
SC$197.331
SD$202.771
TN$192.511
TX$196.18–$215.558
UT$199.881
VA$203.85–$237.002
VI$210.081
VT$202.971
WA$214.50–$240.562
WI$196.951
WV$195.271
WY$206.411

See 11423 in every payment locality

How the 11423 rate is calculated

Each of 11423’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 · 11423

RVUs × geographic indexes × conversion factor

Office or facility?

Work2.01

2.01 RVUs× 1.000 GPCI

Practice expense3.97

3.97 RVUs× 1.000 GPCI

Malpractice0.27

0.27 RVUs× 1.000 GPCI

Adjusted RVUs

6.2500

Conversion factor

$33.4009

Medicare rate

$208.76

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

The exact Montana inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

1,318

Code
11423
Physician work
2.01
Practice expense
3.97
Malpractice
0.27

GPCI2026.csv

71

Locality
Montana
Physician work
1.000
Practice expense
1.000
Malpractice
0.998
Office calculation for 11423 in Montana
ComponentRVULocality factorAdjusted
Physician work2.01× 1.0002.0100
Practice expense3.97× 1.0003.9700
Malpractice0.27× 0.9980.2695
Total RVUs6.2495
Conversion factor× 33.4009

Office rate, Montana$208.74

Office: (2.01 × 1 + 3.97 × 1 + 0.27 × 0.998) × $33.4009 = $208.74

Facility: (2.01 × 1 + 2.02 × 1 + 0.27 × 0.998) × $33.4009 = $143.61

Open 11423 in the RVU calculator

Payment rules and modifiers for 11423

11423 has a 10-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 11423

Skin excision, scalp, neck, hands, feet, or genitalia

RuleCMS valueWhat it means
Global period010Minor procedure: the day of the procedure plus 10 days after are included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)1Not paid (statutory restriction).
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.10/0.80/0.10Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 11423

Skin excision, scalp, neck, hands, feet, or genitalia

10-day global period ends

Oct 11, 2026

Covers Oct 1, 2026 through Oct 11, 2026 (11 days).

Visit on Oct 31, 2026

After the global period ends: visits and procedures are billed normally.

SurgeryVisit
Sep 28, 2026Oct 14, 2026

What modifiers do to the payment

Modifier 51 · payment effect

With and without the modifier

11423 without 51 · national office

$208.76

Skin excision, scalp, neck, hands, feet, or genitalia

11423-51 · Second procedure: 50%

$104.38

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 11423 has changed in Montana

11423 · Office / nonfacility

$208.74

Effective 2026-10-01

The base rate is $8.07 higher than on 2025-10-01, moving from $200.67 to $208.74 (4.0%).

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

    $200.67changed to$208.74

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 2.06 changed to 2.01
    • Practice expense RVU 3.87 changed to 3.97
    • Malpractice RVU 0.28 changed to 0.27
    • Malpractice GPCI 0.978 changed to 0.998

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $206.18changed to$200.67

    • Conversion factor 33.2875 changed to 32.3465
    • Malpractice RVU 0.27 changed to 0.28

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $202.82changed to$206.18

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $207.87changed to$202.82

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 3.81 changed to 3.87
  5. January 1, 2023

    RVU23A

    $210.88changed to$207.87

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 3.77 changed to 3.81
    • Malpractice GPCI 0.977 changed to 0.978

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $211.24changed to$210.88

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 3.73 changed to 3.77

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $212.75changed to$211.24

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 3.47 changed to 3.73
    • Malpractice RVU 0.28 changed to 0.27
    • Malpractice GPCI 1.304 changed to 0.977

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $215.22changed to$212.75

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 3.39 changed to 3.47
    • Malpractice RVU 0.32 changed to 0.28
    • Malpractice GPCI 1.631 changed to 1.304

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $213.91changed to$215.22

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 3.36 changed to 3.39

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $210.36changed to$213.91

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 3.33 changed to 3.36
    • Malpractice RVU 0.33 changed to 0.32
    • Malpractice GPCI 1.429 changed to 1.631

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $207.47changed to$210.36

    • Conversion factor 35.8043 changed to 35.8887
    • Malpractice GPCI 1.226 changed to 1.429

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $208.14changed to$207.47

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 3.34 changed to 3.33
    • Malpractice RVU 0.32 changed to 0.33

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $207.10changed to$208.14

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $204.29changed to$207.10

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 3.27 changed to 3.34
    • Malpractice GPCI 1.165 changed to 1.226

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $207.68changed to$204.29

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 3.68 changed to 3.27
    • Malpractice RVU 0.33 changed to 0.32
    • Malpractice GPCI 1.103 changed to 1.165

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $207.68

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$208.74$143.61RVU26D
2026-07-01$208.74$143.61RVU26C
2026-04-01$208.74$143.61RVU26B
2026-01-01$208.74$143.61RVU26A
2025-10-01$200.67$155.39RVU25D
2025-07-01$200.67$155.39RVU25C
2025-04-01$200.67$155.39RVU25B
2025-01-01$200.67$155.39RVU25A
2024-10-01$206.18$157.59RVU24D
2024-07-01$206.18$157.59RVU24C
2024-04-01$206.18$157.59RVU24B
2024-03-09$206.18$157.59RVU24AR
2024-01-01$202.82$155.01RVU24A
2023-10-01$207.87$157.71RVU23D
2023-07-01$207.87$157.71RVU23C
2023-04-01$207.87$157.71RVU23B
2023-01-01$207.87$157.71RVU23A
2022-10-01$210.88$157.59RVU22D
2022-07-01$210.88$157.59RVU22C
2022-04-01$210.88$157.59RVU22B
2022-01-01$210.88$157.59RVU22A
2021-10-01$211.24$157.50RVU21D
2021-07-01$211.24$157.50RVU21C
2021-04-01$211.24$157.50RVU21B
2021-01-01$211.24$157.50RVU21A
2020-10-01$212.75$163.67RVU20D
2020-07-01$212.75$163.67RVU20C
2020-04-01$212.75$163.67RVU20B
2020-01-01$212.75$163.67RVU20A
2019-10-01$215.22$168.73RVU19D
2019-07-01$215.22$168.73RVU19C
2019-04-01$215.22$168.73RVU19B
2019-01-01$215.22$168.73RVU19A
2018-10-01$213.91$168.91RVU18D
2018-07-01$213.91$168.91RVU18C
2018-04-01$213.91$168.91RVU18B
2018-01-01$213.91$168.91RVU18AR1
2017-10-01$210.36$166.58RVU17D
2017-07-01$210.36$166.58RVU17C
2017-04-01$210.36$166.58RVU17B
2017-01-01$210.36$166.58RVU17A
2016-10-01$207.47$163.79RVU16D
2016-07-01$207.47$163.79RVU16C
2016-04-01$207.47$163.79RVU16B
2016-01-01$207.47$163.79RVU16A
2015-10-01$208.14$164.66RVU15D
2015-07-01$208.14$164.66RVU15C
2015-04-01$207.10$163.84RVU15B
2015-01-01$207.10$163.84RVU15A
2014-10-01$204.29$161.30RVU14D
2014-07-01$204.29$161.30RVU14C
2014-04-01$204.29$161.30RVU14B
2014-01-01$204.29$161.30RVU14A
2013-10-01$207.68$161.40RVU13D
2013-07-01$207.68$161.40RVU13C
2013-04-01$207.68$161.40RVU13B
2013-01-01$207.68$161.40RVU13AR

Price 11423 for an earlier date of service

Where the Montana rate applies

Montana is a Medicare payment area, not a city. Our Census mapping connects it to 497 cities and communities in Montana. Some span more than one payment area; confirm with the service ZIP.

  • Absarokee
  • Acton
  • Alberton
  • Alder
  • Alzada
  • Amsterdam
  • Anaconda-Deer Lodge County
  • Antelope

Browse all communities in Montana

11423 billing questions

How is the 2.1-to-3.0 cm size determined?

Use the excised diameter, including the lesion and margins, rather than the lesion alone. Document the measurement and the anatomic site.

Which nearby code applies when the lesion is on the trunk or an extremity?

For a benign lesion on the trunk or an extremity, use the corresponding 11400-series code based on excised diameter. Code 11403 covers that anatomic group at the 2.1-to-3.0 cm level.

Can the repair be billed separately?

Simple closure is included. A more extensive repair may be separately reported when its complexity and documentation meet the requirements for a repair code.

Can modifier 50 be used for lesions on both sides?

No. The CMS bilateral adjustment does not apply to this code, and modifier 50 is inappropriate.

Are postoperative visits included?

Related postoperative visits during the 10-day global period are included in the procedure payment.

Can an assistant surgeon or co-surgeon be billed?

Medicare does not pay an assistant at surgery for this service. Co-surgeon and team-surgery billing are 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 11423PPRRVU2026_Oct_nonQPP.csv, line 1,318 (RVU26D)
Geographic factors for MontanaGPCI2026.csv, line 71 (RVU26D)

Open CMS sourceHow we calculate rates

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