CPT code 96423: Chemotherapy infusion, intra-arterial, each additional hour2026 Medicare rate & RVUs in Queens, NY

Reports each additional qualifying hour of chemotherapy delivered by intra-arterial infusion after the initial infusion period represented by the primary service.

CMS RVU26DEffective Oct 1, 2026One payment locality

In Queens, NY, Medicare pays $88.99 for 96423 in the office.

$88.99Office (non-facility)
Not available in this settingHospital or facility
+17.9%vs the national office rate ($75.49)

Check a contract rate as a % of Medicare · 96423 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 96423 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Queens, NY
  2. What 96423 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 96423 covers

This add-on service covers continued delivery of a chemotherapy agent through an artery after the initial intra-arterial infusion period. It is used in oncology care when treatment is administered through an arterial catheter rather than by intravenous infusion, injection, or a prolonged pump. Oncology clinicians and qualified staff may perform the administration in an outpatient or hospital setting, with the service furnished under physician supervision as an incident-to service.

Report 96423 with the primary intra-arterial infusion service, 96422; it is not a stand-alone administration code. Assign units from documented infusion duration and follow the applicable CPT time instructions. The record should identify the drug, route, infusion start and stop times, and the total time supporting the additional-hour unit or units. CMS classifies this as an add-on code paid within the primary procedure's global period, and permits billing only when performed under physician supervision.

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 Queens, NY compares for 96423

Across 109 of 109 payment localities, the office rate for 96423 runs from $65.07 in Arkansas to $105.45 in San Benito County, CA. Queens, NY pays $88.99. The RVUs are the same everywhere; the geographic indexes change the dollars.

96423 in Queens, NY vs other payment areas
  1. Queens, NY · this page$88.99
  2. Manhattan, NY · New York$87.87−$1.12
  3. NYC suburbs and Long Island, NY · New York$90.16+$1.17
  4. Rest of New York · New York$71.58−$17.41
  5. Los Angeles, CA · California$87.63−$1.36
  6. Washington, DC area · District of Columbia$88.11−$0.88

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

Every other payment area

96423 in every other Medicare payment locality
Payment localityOfficeFacility
Miami, FLFlorida$80.83—
Chicago, ILIllinois$78.03—
AlaskaAlaska$82.00—
AlabamaAlabama$66.24—
ArkansasArkansas$65.07—
ArizonaArizona$73.13—
Bakersfield, CACalifornia$81.48—
Chico, CACalifornia$81.35—

96423 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.

$65.07

$93.40

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

View every state and territory as a table
96423 office rate range by state
State / territoryOffice rate rangeLocalities
AK$82.001
AL$66.241
AR$65.071
AZ$73.131
CA$81.35–$105.4529
CO$79.551
CT$81.201
DC$88.111
DE$74.531
FL$73.33–$80.833
GA$68.45–$76.932
GU$84.121
HI$84.121
IA$68.691
ID$69.151
IL$70.50–$78.654
IN$69.651
KS$68.121
KY$67.781
LA$67.58–$71.692
MA$78.85–$88.752
MD$76.22–$88.113
ME$69.40–$74.262
MI$69.77–$74.252
MN$76.291
MO$66.04–$72.223
MS$65.581
MT$75.481
NC$70.321
ND$74.491
NE$69.201
NH$78.071
NJ$82.14–$86.862
NM$70.171
NV$75.281
NY$71.58–$90.165
OH$69.571
OK$67.821
OR$74.72–$82.712
PA$69.81–$78.702
PR$76.211
RI$77.661
SC$70.061
SD$74.381
TN$68.511
TX$69.24–$79.268
UT$71.231
VA$73.84–$88.112
VI$76.211
VT$73.981
WA$78.77–$90.932
WI$71.471
WV$67.281
WY$75.051

See 96423 in every payment locality

How the 96423 rate is calculated

Each of 96423’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 · 96423

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.17

0.17 RVUs× 1.000 GPCI

Practice expense2.04

2.04 RVUs× 1.000 GPCI

Malpractice0.05

0.05 RVUs× 1.000 GPCI

Adjusted RVUs

2.2600

Conversion factor

$33.4009

Medicare rate

$75.49

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

The exact Queens, NY inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

12,807

Code
96423
Physician work
0.17
Practice expense
2.04
Malpractice
0.05

GPCI2026.csv

81

Locality
Queens, NY
Physician work
1.064
Practice expense
1.182
Malpractice
1.442
Office calculation for 96423 in Queens, NY
ComponentRVULocality factorAdjusted
Physician work0.17× 1.0640.1809
Practice expense2.04× 1.1822.4113
Malpractice0.05× 1.4420.0721
Total RVUs2.6643
Conversion factor× 33.4009

Office rate, Queens, NY$88.99

Office: (0.17 × 1.064 + 2.04 × 1.182 + 0.05 × 1.442) × $33.4009 = $88.99

Open 96423 in the RVU calculator

Payment rules and modifiers for 96423

The CMS indicators that decide how 96423 is paid alongside other services.

CMS payment indicators · 96423

Chemotherapy infusion, intra-arterial, each additional hour

RuleCMS valueWhat it means
Global periodZZZAdd-on code: falls within the primary procedure’s global period.
Multiple procedures0No multiple-procedure reduction.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical5Incident-to service.

How 96423 has changed in Queens, NY

96423 · Office / nonfacility

$88.99

Effective 2026-10-01

The base rate is $9.35 higher than on 2025-10-01, moving from $79.64 to $88.99 (11.7%).

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

    $79.64changed to$88.99

    • Conversion factor 32.3465 changed to 33.4009
    • Practice expense RVU 1.86 changed to 2.04
    • Malpractice RVU 0.04 changed to 0.05
    • Work GPCI 1.065 changed to 1.064
    • Practice expense GPCI 1.195 changed to 1.182
    • Malpractice GPCI 1.462 changed to 1.442

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $86.43changed to$79.64

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 1.96 changed to 1.86
    • Malpractice RVU 0.05 changed to 0.04

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $85.02changed to$86.43

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $89.82changed to$85.02

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 1.97 changed to 1.96
    • Malpractice RVU 0.04 changed to 0.05
    • Work GPCI 1.061 changed to 1.065
    • Practice expense GPCI 1.212 changed to 1.195
    • Malpractice GPCI 2.061 changed to 1.462
  5. January 1, 2023

    RVU23A

    $97.08changed to$89.82

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 2.03 changed to 1.97
    • Malpractice RVU 0.05 changed to 0.04
    • Work GPCI 1.056 changed to 1.061
    • Practice expense GPCI 1.228 changed to 1.212
    • Malpractice GPCI 2.661 changed to 2.061

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $103.03changed to$97.08

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 2.15 changed to 2.03

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $99.27changed to$103.03

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 2.00 changed to 2.15
    • Malpractice RVU 0.06 changed to 0.05
    • Work GPCI 1.054 changed to 1.056
    • Practice expense GPCI 1.214 changed to 1.228
    • Malpractice GPCI 2.391 changed to 2.661

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $97.63changed to$99.27

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 2.02 changed to 2.00
    • Malpractice RVU 0.05 changed to 0.06
    • Work GPCI 1.052 changed to 1.054
    • Practice expense GPCI 1.200 changed to 1.214
    • Malpractice GPCI 2.121 changed to 2.391

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $103.90changed to$97.63

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 2.15 changed to 2.02
    • Malpractice RVU 0.06 changed to 0.05

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $92.10changed to$103.90

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 1.90 changed to 2.15
    • Malpractice RVU 0.05 changed to 0.06
    • Malpractice GPCI 2.151 changed to 2.121

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $95.74changed to$92.10

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 1.99 changed to 1.90
    • Practice expense GPCI 1.199 changed to 1.200
    • Malpractice GPCI 2.181 changed to 2.151

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $96.51changed to$95.74

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 2.00 changed to 1.99

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $96.03changed to$96.51

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $92.68changed to$96.03

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 1.95 changed to 2.00
    • Malpractice RVU 0.04 changed to 0.05
    • Work GPCI 1.057 changed to 1.052
    • Practice expense GPCI 1.197 changed to 1.199
    • Malpractice GPCI 1.836 changed to 2.181

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $94.77changed to$92.68

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 2.13 changed to 1.95
    • Work GPCI 1.062 changed to 1.057
    • Practice expense GPCI 1.195 changed to 1.197
    • Malpractice GPCI 1.491 changed to 1.836

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $94.77

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$88.99Not available in this settingRVU26D
2026-07-01$88.99Not available in this settingRVU26C
2026-04-01$88.99Not available in this settingRVU26B
2026-01-01$88.99Not available in this settingRVU26A
2025-10-01$79.64Not available in this settingRVU25D
2025-07-01$79.64Not available in this settingRVU25C
2025-04-01$79.64Not available in this settingRVU25B
2025-01-01$79.64Not available in this settingRVU25A
2024-10-01$86.43Not available in this settingRVU24D
2024-07-01$86.43Not available in this settingRVU24C
2024-04-01$86.43Not available in this settingRVU24B
2024-03-09$86.43Not available in this settingRVU24AR
2024-01-01$85.02Not available in this settingRVU24A
2023-10-01$89.82Not available in this settingRVU23D
2023-07-01$89.82Not available in this settingRVU23C
2023-04-01$89.82Not available in this settingRVU23B
2023-01-01$89.82Not available in this settingRVU23A
2022-10-01$97.08Not available in this settingRVU22D
2022-07-01$97.08Not available in this settingRVU22C
2022-04-01$97.08Not available in this settingRVU22B
2022-01-01$97.08Not available in this settingRVU22A
2021-10-01$103.03Not available in this settingRVU21D
2021-07-01$103.03Not available in this settingRVU21C
2021-04-01$103.03Not available in this settingRVU21B
2021-01-01$103.03Not available in this settingRVU21A
2020-10-01$99.27Not available in this settingRVU20D
2020-07-01$99.27Not available in this settingRVU20C
2020-04-01$99.27Not available in this settingRVU20B
2020-01-01$99.27Not available in this settingRVU20A
2019-10-01$97.63Not available in this settingRVU19D
2019-07-01$97.63Not available in this settingRVU19C
2019-04-01$97.63Not available in this settingRVU19B
2019-01-01$97.63Not available in this settingRVU19A
2018-10-01$103.90Not available in this settingRVU18D
2018-07-01$103.90Not available in this settingRVU18C
2018-04-01$103.90Not available in this settingRVU18B
2018-01-01$103.90Not available in this settingRVU18AR1
2017-10-01$92.10Not available in this settingRVU17D
2017-07-01$92.10Not available in this settingRVU17C
2017-04-01$92.10Not available in this settingRVU17B
2017-01-01$92.10Not available in this settingRVU17A
2016-10-01$95.74Not available in this settingRVU16D
2016-07-01$95.74Not available in this settingRVU16C
2016-04-01$95.74Not available in this settingRVU16B
2016-01-01$95.74Not available in this settingRVU16A
2015-10-01$96.51Not available in this settingRVU15D
2015-07-01$96.51Not available in this settingRVU15C
2015-04-01$96.03Not available in this settingRVU15B
2015-01-01$96.03Not available in this settingRVU15A
2014-10-01$92.68Not available in this settingRVU14D
2014-07-01$92.68Not available in this settingRVU14C
2014-04-01$92.68Not available in this settingRVU14B
2014-01-01$92.68Not available in this settingRVU14A
2013-10-01$94.77Not available in this settingRVU13D
2013-07-01$94.77Not available in this settingRVU13C
2013-04-01$94.77Not available in this settingRVU13B
2013-01-01$94.77Not available in this settingRVU13AR

Price 96423 for an earlier date of service

Where the Queens, NY rate applies

Queens, NY is a Medicare payment area, not a city. Our Census mapping connects it to 1 cities and communities in New York. Some span more than one payment area; confirm with the service ZIP.

Browse all communities in New York

96423 billing questions

When should 96423 be reported instead of 96415?

Use 96423 for additional qualifying time during an intra-arterial chemotherapy infusion. Code 96415 describes additional time for an intravenous chemotherapy infusion.

Can 96423 be billed by itself?

No. It is an add-on code reported with the primary intra-arterial infusion service, 96422.

What documentation supports the additional-hour units?

Document the chemotherapy agent, intra-arterial route, and infusion start and stop times. The recorded duration must support the units under the applicable CPT time instructions.

Does physician supervision affect reporting?

Yes. CMS identifies this as an incident-to service and allows billing only when it is performed under physician supervision.

Is 96423 used for an intra-arterial push?

No. It describes additional infusion time, not push administration. Code 96420 is the related intra-arterial push 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 96423PPRRVU2026_Oct_nonQPP.csv, line 12,807 (RVU26D)
Geographic factors for Queens, NYGPCI2026.csv, line 81 (RVU26D)

Open CMS sourceHow we calculate rates

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