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CPT code 11901: Lesion injection, more than seven lesions2026 Medicare rate & RVUs in Connecticut

Report this service when a clinician injects intralesional medication into more than seven discrete skin lesions during one treatment session.

CMS RVU26DEffective Oct 1, 2026One payment locality62.4K Medicare services in 2024

In Connecticut, Medicare pays $72.93 for 11901 in the office and $38.04 when it’s performed in a hospital or facility.

$72.93Office (non-facility)
$38.04Hospital or facility
+6.0%vs the national office rate ($68.81)

Check a contract rate as a % of Medicare · 11901 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 11901 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Connecticut
  2. What 11901 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 11901 covers

Code 11901 represents the clinician’s work injecting medication directly into more than seven discrete skin lesions in one treatment session. Dermatologists commonly use intralesional corticosteroid injections for multiple keloids or hypertrophic scars. The clinician identifies the target lesions and places the medication within them, rather than injecting a subcutaneous filling material for volume correction.

Select 11901 by the number of lesions actually injected: more than seven qualifies, while 11900 covers up to seven. Document the lesion count and locations, indication, agent and amount, and injection service. This code has a 0-day global period, so same-day preoperative and postoperative care is included. When another procedure is performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% multiple-procedure reduction. Modifier 50 is inappropriate. Assistant-at-surgery payment is statutorily restricted, 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 Connecticut compares for 11901

Across 109 of 109 payment localities, the office rate for 11901 runs from $61.97 in Arkansas to $88.45 in San Benito County, CA. Connecticut pays $72.93. The RVUs are the same everywhere; the geographic indexes change the dollars.

11901 in Connecticut vs other payment areas
  1. Connecticut · this page$72.93
  2. Los Angeles, CA · California$76.48+$3.55
  3. Washington, DC area · District of Columbia$77.67+$4.74
  4. Miami, FL · Florida$74.04+$1.11
  5. Chicago, IL · Illinois$72.22−$0.71
  6. Manhattan, NY · New York$78.39+$5.46
  7. Alaska · Alaska$83.41+$10.48

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

Every other payment area

11901 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$62.74$34.39
ArkansasArkansas$61.97$34.14
ArizonaArizona$67.22$35.82
Bakersfield, CACalifornia$72.27$36.76
Chico, CACalifornia$72.04$36.53
El Centro, CACalifornia$72.06$36.55
Fresno, CACalifornia$72.04$36.53
Hanford, CACalifornia$72.04$36.53

11901 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.

$61.97

$83.41

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

View every state and territory as a table
11901 office rate range by state
State / territoryOffice rate rangeLocalities
AK$83.411
AL$62.741
AR$61.971
AZ$67.221
CA$72.04–$88.4529
CO$71.191
CT$72.931
DC$77.671
DE$68.211
FL$68.20–$74.043
GA$64.89–$70.002
GU$73.361
HI$73.361
IA$63.961
ID$64.341
IL$66.61–$72.224
IN$64.651
KS$63.771
KY$64.121
LA$64.06–$66.742
MA$70.89–$77.462
MD$69.36–$77.673
ME$64.69–$67.582
MI$65.59–$69.002
MN$68.331
MO$63.17–$66.873
MS$62.581
MT$68.801
NC$65.251
ND$67.421
NE$64.241
NH$70.171
NJ$73.79–$77.072
NM$65.921
NV$68.461
NY$66.09–$80.125
OH$65.311
OK$63.961
OR$67.95–$73.112
PA$65.36–$71.382
PR$69.221
RI$70.381
SC$65.381
SD$67.251
TN$64.051
TX$65.00–$70.948
UT$66.141
VA$67.43–$77.672
VI$69.221
VT$67.251
WA$70.73–$78.852
WI$65.491
WV$64.521
WY$68.201

See 11901 in every payment locality

How the 11901 rate is calculated

Each of 11901’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 · 11901

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.78

0.78 RVUs× 1.000 GPCI

Practice expense1.21

1.21 RVUs× 1.000 GPCI

Malpractice0.07

0.07 RVUs× 1.000 GPCI

Adjusted RVUs

2.0600

Conversion factor

$33.4009

Medicare rate

$68.81

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

1,380

Code
11901
Physician work
0.78
Practice expense
1.21
Malpractice
0.07

GPCI2026.csv

38

Locality
Connecticut
Physician work
1.020
Practice expense
1.077
Malpractice
1.210
Office calculation for 11901 in Connecticut
ComponentRVULocality factorAdjusted
Physician work0.78× 1.0200.7956
Practice expense1.21× 1.0771.3032
Malpractice0.07× 1.2100.0847
Total RVUs2.1835
Conversion factor× 33.4009

Office rate, Connecticut$72.93

Office: (0.78 × 1.02 + 1.21 × 1.077 + 0.07 × 1.21) × $33.4009 = $72.93

Facility: (0.78 × 1.02 + 0.24 × 1.077 + 0.07 × 1.21) × $33.4009 = $38.04

Open 11901 in the RVU calculator

Payment rules and modifiers for 11901

The CMS indicators that decide how 11901 is paid alongside other services.

CMS payment indicators · 11901

Lesion injection, more than seven lesions

RuleCMS valueWhat it means
Global period000Same-day global: pre- and post-op care on the day of the procedure is 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.

What modifiers do to the payment

Modifier 51 · payment effect

With and without the modifier

11901 without 51 · national office

$68.81

Lesion injection, more than seven lesions

11901-51 · Second procedure: 50%

$34.41

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

Codes related to 11901

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

Codes related to 11901
CodeHow it relatesOffice range, Connecticut
Same family
11900Lesion injection, up to seven lesionsIntralesional injection sibling for treatment of up to seven lesions.$60.40
Often billed with
99212Office visit, established patient, straightforwardMay accompany the procedure for a separately identifiable office evaluation supported by documentation.$62.97
99213Office visit, established patient, low complexityMay accompany the procedure for a separately identifiable office evaluation supported by documentation.$100.45

How 11901 has changed in Connecticut

11901 · Office / nonfacility

$72.93

Effective 2026-10-01

The base rate is $0.34 higher than on 2025-10-01, moving from $72.59 to $72.93 (0.5%).

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

    $72.59changed to$72.93

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 0.80 changed to 0.78
    • Practice expense RVU 1.23 changed to 1.21
    • 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

    $75.10changed to$72.59

    • Conversion factor 33.2875 changed to 32.3465
    • Malpractice RVU 0.08 changed to 0.07

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $73.87changed to$75.10

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $76.01changed to$73.87

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 1.21 changed to 1.23
    • 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

    $77.88changed to$76.01

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 1.20 changed to 1.21
    • Malpractice RVU 0.09 changed to 0.08
    • 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

    $77.36changed to$77.88

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 1.17 changed to 1.20

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $76.64changed to$77.36

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 1.08 changed to 1.17
    • 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

    $76.09changed to$76.64

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 1.04 changed to 1.08
    • Malpractice RVU 0.11 changed to 0.09
    • 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

    $78.41changed to$76.09

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 1.10 changed to 1.04

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $77.58changed to$78.41

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 1.08 changed to 1.10
    • 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

    $77.13changed to$77.58

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 1.07 changed to 1.08
    • 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

    $76.52changed to$77.13

    • Conversion factor 35.9335 changed to 35.8043
    • Malpractice RVU 0.09 changed to 0.11

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $76.14changed to$76.52

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $75.79changed to$76.14

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 1.04 changed to 1.07
    • Malpractice RVU 0.11 changed to 0.09
    • 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

    $76.68changed to$75.79

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 1.17 changed to 1.04
    • 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: $76.68

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$72.93$38.04RVU26D
2026-07-01$72.93$38.04RVU26C
2026-04-01$72.93$38.04RVU26B
2026-01-01$72.93$38.04RVU26A
2025-10-01$72.59$46.12RVU25D
2025-07-01$72.59$46.12RVU25C
2025-04-01$72.59$46.12RVU25B
2025-01-01$72.59$46.12RVU25A
2024-10-01$75.10$47.50RVU24D
2024-07-01$75.10$47.50RVU24C
2024-04-01$75.10$47.50RVU24B
2024-03-09$75.10$47.50RVU24AR
2024-01-01$73.87$46.72RVU24A
2023-10-01$76.01$48.38RVU23D
2023-07-01$76.01$48.38RVU23C
2023-04-01$76.01$48.38RVU23B
2023-01-01$76.01$48.38RVU23A
2022-10-01$77.88$48.97RVU22D
2022-07-01$77.88$48.97RVU22C
2022-04-01$77.88$48.97RVU22B
2022-01-01$77.88$48.97RVU22A
2021-10-01$77.36$49.76RVU21D
2021-07-01$77.36$49.76RVU21C
2021-04-01$77.36$49.76RVU21B
2021-01-01$77.36$49.76RVU21A
2020-10-01$76.64$52.14RVU20D
2020-07-01$76.64$52.14RVU20C
2020-04-01$76.64$52.14RVU20B
2020-01-01$76.64$52.14RVU20A
2019-10-01$76.09$53.65RVU19D
2019-07-01$76.09$53.65RVU19C
2019-04-01$76.09$53.65RVU19B
2019-01-01$76.09$53.65RVU19A
2018-10-01$78.41$53.99RVU18D
2018-07-01$78.41$53.99RVU18C
2018-04-01$78.41$53.99RVU18B
2018-01-01$78.41$53.99RVU18AR1
2017-10-01$77.58$53.93RVU17D
2017-07-01$77.58$53.93RVU17C
2017-04-01$77.58$53.93RVU17B
2017-01-01$77.58$53.93RVU17A
2016-10-01$77.13$53.45RVU16D
2016-07-01$77.13$53.45RVU16C
2016-04-01$77.13$53.45RVU16B
2016-01-01$77.13$53.45RVU16A
2015-10-01$76.52$52.76RVU15D
2015-07-01$76.52$52.76RVU15C
2015-04-01$76.14$52.49RVU15B
2015-01-01$76.14$52.49RVU15A
2014-10-01$75.79$53.40RVU14D
2014-07-01$75.79$53.40RVU14C
2014-04-01$75.79$53.40RVU14B
2014-01-01$75.79$53.40RVU14A
2013-10-01$76.68$52.51RVU13D
2013-07-01$76.68$52.51RVU13C
2013-04-01$76.68$52.51RVU13B
2013-01-01$76.68$52.51RVU13AR

Price 11901 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

11901 billing questions

When should 11901 be chosen instead of 11900?

Count the discrete lesions actually injected during the treatment session. Use 11901 for more than seven lesions; 11900 covers up to seven.

Is the code reported once per lesion or once per session?

Choose the code level based on the total number of lesions injected in the session. Do not report one unit for each lesion or needle pass.

Can the medication be billed separately?

The procedure code represents the intralesional injection service, not the medication product. Report a separately identifiable drug product under the applicable drug coding rules when eligible.

Can modifier 50 be used for lesions on both sides?

No. Bilateral adjustment does not apply to this code, and modifier 50 is inappropriate.

What same-day care is included?

The code has a 0-day global period, so same-day preoperative and postoperative care is included. A separately identifiable evaluation may be reported when its documentation supports a distinct E/M service.

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 11901PPRRVU2026_Oct_nonQPP.csv, line 1,380 (RVU26D)
Geographic factors for ConnecticutGPCI2026.csv, line 38 (RVU26D)

Open CMS sourceHow we calculate rates

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