Billing code 11601: Malignant skin excisionMedicare rate & RVUs

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, 2026109 payment localities16.5K Medicare services in 2024

Medicare pays $227.13 for 11601 nationally in the office and $128.26 in a hospital or facility. Local office rates run $201.86–$297.85.

Medicare rate · 11601

Malignant skin excision

Swap in your local Medicare rate.

Work RVUs
2.02
Total RVUs
6.80
Global days
010

National rate · 2026

$227.13

Office setting, before claim adjustments.

See every locality for 11601 → · Billed by an NP, PA or therapist? →

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

On this page 10 sections
  1. Medicare rate
  2. What 11601 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Related codes
  9. Billing questions
  10. 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.

Where 11601 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 payment localities

$201.86 to $297.85

$201.86$249.86$297.85
One dot per payment locality, office / nonfacility. Hover a dot to see the locality; select it to open that rate.

109 of 109 payment localities

11601 office and facility rates by payment locality
Payment localityOfficeFacility
Alabama$204.69$118.18
Alaska*$267.12$161.83
Arizona$221.27$125.47
Arkansas$201.86$116.93
Atlanta$231.37$130.92
Austin$235.14$130.54
Bakersfield$239.83$131.47
Baltimore/Surr. Cntys$241.18$135.09
Beaumont$212.91$122.94
Brazoria$224.54$126.56

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

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

Swap in your local Medicare rate.

Work 2.02Practice expense 4.54Malpractice 0.24

6.8000 adjusted RVUs×$33.4009 conversion factor=$227.13

All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.

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

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

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

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

11601 compared with similar codes

Compare codes

11601 vs 11600 vs 11602 vs 11621 vs 11641: national Medicare rates

Swap in your local Medicare rate.

  • 11601
    Malignant skin excision · 2.02 wRVU
    $227.13
  • 11600
    Malignant lesion excision · 1.59 wRVU
    $198.40−$28.73
  • 11602
    Malignant lesion excision · 2.21 wRVU
    $240.49+$13.36
  • 11621
    Skin lesion excision · 2.03 wRVU
    $228.46+$1.33
  • 11641
    Malignant lesion excision · 2.12 wRVU
    $237.15+$10.02

How to choose

11600Malignant lesion excision
Both cover malignant lesions on the trunk, arms, or legs. Choose 11600 when the lesion plus margins measures 0.5 cm or less.
11602Malignant lesion excision
Both cover malignant lesions on the trunk, arms, or legs. Choose 11602 when the lesion plus margins measures 1.1–2 cm.
11621Skin lesion excision
The size range is the same, but 11621 applies to its specified anatomic group rather than the trunk, arms, or legs.
11641Malignant lesion excision
The size range is the same, but 11641 applies to its specified facial and related anatomic group rather than the trunk, arms, or legs.

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)

Open CMS sourceHow we calculate rates

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