CPT code 11601: Malignant skin excision, trunk, arms, or legs; 0.6–1 cm2026 Medicare rate & RVUs in Montana

Excision of a malignant skin lesion on the trunk, arm, or leg, selected when the lesion and margins together measure 0.6–1 cm.

CMS RVU26DEffective Oct 1, 2026One payment locality16.5K Medicare services in 2024

In Montana, Medicare pays $227.11 for 11601 in the office and $128.24 when it’s performed in a hospital or facility.

$227.11Office (non-facility)
$128.24Hospital or facility
−0.0%vs the national office rate ($227.13)

Check a contract rate as a % of Medicare · 11601 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 11601 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Montana
  2. What 11601 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 11601 covers

This service removes a malignant skin lesion from the trunk, an arm, or a leg, including the surrounding margins. A dermatologist, surgeon, or other qualified physician typically performs the excision in an office or outpatient setting. The selected size is the greatest diameter of the lesion plus the margins, not the lesion’s diameter alone. Routine simple closure is included; a separately documented intermediate or complex repair may be reported when its requirements are met.

Report this code for an excised diameter of 0.6–1 cm at one of these anatomic sites. Documentation should identify the site, lesion dimensions, margins taken, final excised diameter, and malignant diagnosis. The 10-day global period includes related postoperative visits during that period. 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 is inappropriate. Medicare does not pay an assistant at surgery for this code; 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 Montana compares for 11601

Across 109 of 109 payment localities, the office rate for 11601 runs from $201.86 in Arkansas to $297.85 in San Benito County, CA. Montana pays $227.11. The RVUs are the same everywhere; the geographic indexes change the dollars.

11601 in Montana vs other payment areas
  1. Montana · this page$227.11
  2. Los Angeles, CA · California$254.95+$27.84
  3. Washington, DC area · District of Columbia$258.67+$31.56
  4. Miami, FL · Florida$245.60+$18.49
  5. Chicago, IL · Illinois$238.74+$11.63
  6. Manhattan, NY · New York$260.71+$33.60
  7. Alaska · Alaska$267.12+$40.01

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

Every other payment area

11601 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$204.69$118.18
ArkansasArkansas$201.86$116.93
ArizonaArizona$221.27$125.47
Bakersfield, CACalifornia$239.83$131.47
Chico, CACalifornia$239.11$130.75
El Centro, CACalifornia$239.15$130.79
Fresno, CACalifornia$239.11$130.75
Hanford, CACalifornia$239.11$130.75

11601 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.

$201.86

$268.48

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

View every state and territory as a table
11601 office rate range by state
State / territoryOffice rate rangeLocalities
AK$267.121
AL$204.691
AR$201.861
AZ$221.271
CA$239.11–$297.8529
CO$235.891
CT$241.841
DC$258.671
DE$224.831
FL$224.49–$245.603
GA$212.29–$231.372
GU$244.531
HI$244.531
IA$209.401
ID$210.771
IL$218.45–$238.744
IN$211.941
KS$208.591
KY$209.611
LA$209.35–$219.272
MA$234.62–$258.432
MD$228.96–$258.673
ME$211.96–$222.802
MI$214.97–$227.322
MN$225.881
MO$205.99–$219.863
MS$203.961
MT$227.111
NC$214.071
ND$222.361
NE$210.461
NH$232.341
NJ$244.55–$256.182
NM$216.151
NV$225.941
NY$217.16–$266.975
OH$214.001
OK$209.111
OR$224.14–$242.992
PA$214.25–$236.102
PR$228.671
RI$232.551
SC$214.401
SD$221.801
TN$209.621
TX$212.91–$235.148
UT$217.211
VA$222.19–$258.672
VI$228.671
VT$221.651
WA$234.12–$263.452
WI$215.211
WV$210.721
WY$225.041

See 11601 in every payment locality

How the 11601 rate is calculated

Each of 11601’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 · 11601

RVUs × geographic indexes × conversion factor

Office or facility?

Work2.02

2.02 RVUs× 1.000 GPCI

Practice expense4.54

4.54 RVUs× 1.000 GPCI

Malpractice0.24

0.24 RVUs× 1.000 GPCI

Adjusted RVUs

6.8000

Conversion factor

$33.4009

Medicare rate

$227.13

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

1,341

Code
11601
Physician work
2.02
Practice expense
4.54
Malpractice
0.24

GPCI2026.csv

71

Locality
Montana
Physician work
1.000
Practice expense
1.000
Malpractice
0.998
Office calculation for 11601 in Montana
ComponentRVULocality factorAdjusted
Physician work2.02× 1.0002.0200
Practice expense4.54× 1.0004.5400
Malpractice0.24× 0.9980.2395
Total RVUs6.7995
Conversion factor× 33.4009

Office rate, Montana$227.11

Office: (2.02 × 1 + 4.54 × 1 + 0.24 × 0.998) × $33.4009 = $227.11

Facility: (2.02 × 1 + 1.58 × 1 + 0.24 × 0.998) × $33.4009 = $128.24

Open 11601 in the RVU calculator

Payment rules and modifiers for 11601

11601 has a 10-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 11601

Malignant skin excision, trunk, arms, or legs; 0.6–1 cm

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 · 11601

Malignant skin excision, trunk, arms, or legs; 0.6–1 cm

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

11601 without 51 · national office

$227.13

Malignant skin excision, trunk, arms, or legs; 0.6–1 cm

11601-51 · Second procedure: 50%

$113.57

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 11601 has changed in Montana

11601 · Office / nonfacility

$227.11

Effective 2026-10-01

The base rate is $5.71 higher than on 2025-10-01, moving from $221.40 to $227.11 (2.6%).

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

    $221.40changed to$227.11

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 2.07 changed to 2.02
    • Practice expense RVU 4.53 changed to 4.54
    • Malpractice RVU 0.25 changed to 0.24
    • Malpractice GPCI 0.978 changed to 0.998

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $229.17changed to$221.40

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 4.57 changed to 4.53

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $225.43changed to$229.17

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $232.28changed to$225.43

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 4.54 changed to 4.57
  5. January 1, 2023

    RVU23A

    $235.47changed to$232.28

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 4.49 changed to 4.54
    • Malpractice GPCI 0.977 changed to 0.978

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $237.42changed to$235.47

    • Conversion factor 34.8931 changed to 34.6062

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $238.05changed to$237.42

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 4.20 changed to 4.49
    • Malpractice GPCI 1.304 changed to 0.977

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $242.02changed to$238.05

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 4.14 changed to 4.20
    • Malpractice RVU 0.31 changed to 0.25
    • Malpractice GPCI 1.631 changed to 1.304

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $241.89changed to$242.02

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 4.16 changed to 4.14
    • Malpractice RVU 0.30 changed to 0.31

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $238.05changed to$241.89

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 4.12 changed to 4.16
    • Malpractice RVU 0.31 changed to 0.30
    • Malpractice GPCI 1.429 changed to 1.631

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $234.16changed to$238.05

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 4.09 changed to 4.12
    • Malpractice GPCI 1.226 changed to 1.429

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $234.13changed to$234.16

    • Conversion factor 35.9335 changed to 35.8043
    • Malpractice RVU 0.29 changed to 0.31

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $232.96changed to$234.13

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $229.61changed to$232.96

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 3.99 changed to 4.09
    • Malpractice RVU 0.30 changed to 0.29
    • Malpractice GPCI 1.165 changed to 1.226

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $234.82changed to$229.61

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 4.49 changed to 3.99
    • Malpractice RVU 0.31 changed to 0.30
    • Malpractice GPCI 1.103 changed to 1.165

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $234.82

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$227.11$128.24RVU26D
2026-07-01$227.11$128.24RVU26C
2026-04-01$227.11$128.24RVU26B
2026-01-01$227.11$128.24RVU26A
2025-10-01$221.40$144.73RVU25D
2025-07-01$221.40$144.73RVU25C
2025-04-01$221.40$144.73RVU25B
2025-01-01$221.40$144.73RVU25A
2024-10-01$229.17$147.95RVU24D
2024-07-01$229.17$147.95RVU24C
2024-04-01$229.17$147.95RVU24B
2024-03-09$229.17$147.95RVU24AR
2024-01-01$225.43$145.53RVU24A
2023-10-01$232.28$149.26RVU23D
2023-07-01$232.28$149.26RVU23C
2023-04-01$232.28$149.26RVU23B
2023-01-01$232.28$149.26RVU23A
2022-10-01$235.47$149.99RVU22D
2022-07-01$235.47$149.99RVU22C
2022-04-01$235.47$149.99RVU22B
2022-01-01$235.47$149.99RVU22A
2021-10-01$237.42$150.19RVU21D
2021-07-01$237.42$150.19RVU21C
2021-04-01$237.42$150.19RVU21B
2021-01-01$237.42$150.19RVU21A
2020-10-01$238.05$155.76RVU20D
2020-07-01$238.05$155.76RVU20C
2020-04-01$238.05$155.76RVU20B
2020-01-01$238.05$155.76RVU20A
2019-10-01$242.02$161.66RVU19D
2019-07-01$242.02$161.66RVU19C
2019-04-01$242.02$161.66RVU19B
2019-01-01$242.02$161.66RVU19A
2018-10-01$241.89$160.89RVU18D
2018-07-01$241.89$160.89RVU18C
2018-04-01$241.89$160.89RVU18B
2018-01-01$241.89$160.89RVU18AR1
2017-10-01$238.05$158.74RVU17D
2017-07-01$238.05$158.74RVU17C
2017-04-01$238.05$158.74RVU17B
2017-01-01$238.05$158.74RVU17A
2016-10-01$234.16$155.39RVU16D
2016-07-01$234.16$155.39RVU16C
2016-04-01$234.16$155.39RVU16B
2016-01-01$234.16$155.39RVU16A
2015-10-01$234.13$155.43RVU15D
2015-07-01$234.13$155.43RVU15C
2015-04-01$232.96$154.66RVU15B
2015-01-01$232.96$154.66RVU15A
2014-10-01$229.61$152.95RVU14D
2014-07-01$229.61$152.95RVU14C
2014-04-01$229.61$152.95RVU14B
2014-01-01$229.61$152.95RVU14A
2013-10-01$234.82$152.15RVU13D
2013-07-01$234.82$152.15RVU13C
2013-04-01$234.82$152.15RVU13B
2013-01-01$234.82$152.15RVU13AR

Price 11601 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

11601 billing questions

How is the size range determined?

Use the greatest diameter of the lesion together with the margins removed. The lesion’s original diameter alone does not determine the code.

When should 11600 or 11602 be reported instead?

For a trunk, arm, or leg lesion, use 11600 when the excised diameter is 0.5 cm or less and 11602 when it is 1.1–2 cm.

Can the closure be billed separately?

Routine simple closure is included. A separately documented intermediate or complex repair may be reported when the repair meets that service’s coding requirements.

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.

What documentation supports reporting 11601?

Record the anatomic site, lesion dimensions, margins removed, greatest final excised diameter, and malignant diagnosis.

Are postoperative visits included?

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

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 11601PPRRVU2026_Oct_nonQPP.csv, line 1,341 (RVU26D)
Geographic factors for MontanaGPCI2026.csv, line 71 (RVU26D)

Open CMS sourceHow we calculate rates

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