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CPT code 95146: Venom antigen preparation, two venom types2026 Medicare rate & RVUs in King County, WA

Reports allergist-supervised preparation and provision of allergen immunotherapy antigens for treatment plans involving two distinct stinging-insect venoms.

CMS RVU26DEffective Oct 1, 2026One payment locality4.6K Medicare services in 2024

In King County, WA, Medicare pays $76.15 for 95146 in the office and $2.79 when it’s performed in a hospital or facility.

$76.15Office (non-facility)
$2.79Hospital or facility
+21.9%vs the national office rate ($62.46)

Check a contract rate as a % of Medicare · 95146 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 95146 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in King County, WA
  2. What 95146 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 95146 covers

An allergist or allergy practice reports this service for the professional supervision involved in preparing and providing immunotherapy antigens for two distinct stinging-insect venoms. It concerns the venom extracts supplied for a patient’s desensitization regimen, not the injection visit itself. The service is typically part of outpatient allergy care, with the treating allergist determining the venom immunotherapy plan and the practice preparing or arranging the prescribed extracts.

Choose this code when the preparation and provision service covers two venom types; the count is based on venoms, not injection sites or the number of shots given. Documentation should identify the prescribed venom immunotherapy and support that two distinct venoms were prepared or provided. This code represents antigen preparation and provision, so it should not stand in for the separate service of administering venom injections.

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 King County, WA compares for 95146

Across 109 of 109 payment localities, the office rate for 95146 runs from $53.82 in Arkansas to $89.10 in San Benito County, CA. King County, WA pays $76.15. The RVUs are the same everywhere; the geographic indexes change the dollars.

95146 in King County, WA vs other payment areas
  1. King County, WA · this page$76.15
  2. Rest of Washington · Washington$65.59−$10.56
  3. Los Angeles, CA · California$73.43−$2.72
  4. Washington, DC area · District of Columbia$73.31−$2.84
  5. Miami, FL · Florida$65.44−$10.71
  6. Chicago, IL · Illinois$63.21−$12.94
  7. Manhattan, NY · New York$72.52−$3.63

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

Every other payment area

95146 in every other Medicare payment locality
Payment localityOfficeFacility
AlaskaAlaska$67.22$3.55
AlabamaAlabama$54.80$2.49
ArkansasArkansas$53.82$2.46
ArizonaArizona$60.55$2.61
Bakersfield, CACalifornia$68.14$2.61
Chico, CACalifornia$68.11$2.58
El Centro, CACalifornia$68.11$2.58
Fresno, CACalifornia$68.11$2.58

95146 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.

$53.82

$78.60

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

View every state and territory as a table
95146 office rate range by state
State / territoryOffice rate rangeLocalities
AK$67.221
AL$54.801
AR$53.821
AZ$60.551
CA$68.11–$89.1029
CO$66.261
CT$67.201
DC$73.311
DE$61.711
FL$59.98–$65.443
GA$56.03–$63.492
GU$70.561
HI$70.561
IA$57.151
ID$57.471
IL$57.42–$64.354
IN$57.901
KS$56.521
KY$55.761
LA$55.53–$58.962
MA$65.61–$74.172
MD$63.17–$73.313
ME$57.52–$61.802
MI$57.27–$60.582
MN$63.971
MO$54.15–$59.573
MS$54.021
MT$62.461
NC$58.311
ND$62.261
NE$57.621
NH$64.881
NJ$68.10–$72.232
NM$57.541
NV$62.461
NY$59.35–$74.245
OH$57.231
OK$55.951
OR$62.12–$69.082
PA$57.51–$65.032
PR$63.121
RI$64.451
SC$57.841
SD$62.241
TN$56.831
TX$57.03–$65.918
UT$58.821
VA$61.34–$73.312
VI$63.121
VT$61.691
WA$65.59–$76.152
WI$59.701
WV$54.731
WY$62.371

See 95146 in every payment locality

How the 95146 rate is calculated

Each of 95146’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 · 95146

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.06

0.06 RVUs× 1.000 GPCI

Practice expense1.80

1.80 RVUs× 1.000 GPCI

Malpractice0.01

0.01 RVUs× 1.000 GPCI

Adjusted RVUs

1.8700

Conversion factor

$33.4009

Medicare rate

$62.46

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

The exact King County, WA inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

12,483

Code
95146
Physician work
0.06
Practice expense
1.80
Malpractice
0.01

GPCI2026.csv

108

Locality
King County, WA
Physician work
1.050
Practice expense
1.227
Malpractice
0.817
Office calculation for 95146 in King County, WA
ComponentRVULocality factorAdjusted
Physician work0.06× 1.0500.0630
Practice expense1.80× 1.2272.2086
Malpractice0.01× 0.8170.0082
Total RVUs2.2798
Conversion factor× 33.4009

Office rate, King County, WA$76.15

Office: (0.06 × 1.05 + 1.8 × 1.227 + 0.01 × 0.817) × $33.4009 = $76.15

Facility: (0.06 × 1.05 + 0.01 × 1.227 + 0.01 × 0.817) × $33.4009 = $2.79

Open 95146 in the RVU calculator

Payment rules and modifiers for 95146

95146 has no global surgery period, no multiple-procedure, bilateral or assistant-at-surgery adjustment, and no professional/technical split. What changes the payment is where the service happens: the place of service on the claim decides whether Medicare pays the office or the facility rate.

Place of service · 95146

Which rate does Medicare pay?

The POS code on the claim line (CMS-1500 box 24B).

POS 11 · non-facility rate · national

$62.46

Non-facility (office)
$62.46
Facility
$2.67

Higher because the practice carries its own overhead.

Codes related to 95146

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

Codes related to 95146
CodeHow it relatesOffice range, King County, WA
Same family
95145Venom antigen, one insect venomPreparation and provision service for one stinging-insect venom.$41.31
95147Antigen preparation, three stinging insect venomsPreparation and provision service for three stinging-insect venoms.$73.28
95148Venom antigen preparation, four insect venomsPreparation and provision service for four stinging-insect venoms.$108.93
95149Venom antigen preparation, five or more venomsPreparation and provision service for five stinging-insect venoms.$145.00
Used instead
95165Allergy extract preparation, multidose vials, per dosePreparation and provision service for nonvenom allergen antigens.$20.82

How 95146 has changed in King County, WA

95146 · Office / nonfacility

$76.15

Effective 2026-10-01

The base rate is $0.45 higher than on 2025-10-01, moving from $75.70 to $76.15 (0.6%).

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

    $75.70changed to$76.15

    • Conversion factor 32.3465 changed to 33.4009
    • Practice expense RVU 1.86 changed to 1.80
    • Work GPCI 1.043 changed to 1.050
    • Practice expense GPCI 1.220 changed to 1.227
    • Malpractice GPCI 0.853 changed to 0.817

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $81.96changed to$75.70

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

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $80.63changed to$81.96

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $73.97changed to$80.63

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 1.75 changed to 1.96
    • Work GPCI 1.039 changed to 1.043
    • Practice expense GPCI 1.207 changed to 1.220
    • Malpractice GPCI 0.815 changed to 0.853

  5. January 1, 2023

    RVU23A

    $76.80changed to$73.97

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 1.80 changed to 1.75
    • Work GPCI 1.036 changed to 1.039
    • Practice expense GPCI 1.194 changed to 1.207
    • Malpractice GPCI 0.776 changed to 0.815

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $76.18changed to$76.80

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 1.77 changed to 1.80

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $67.14changed to$76.18

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 1.53 changed to 1.77
    • Work GPCI 1.031 changed to 1.036
    • Practice expense GPCI 1.170 changed to 1.194
    • Malpractice GPCI 0.854 changed to 0.776

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $61.62changed to$67.14

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 1.43 changed to 1.53
    • Work GPCI 1.027 changed to 1.031
    • Practice expense GPCI 1.146 changed to 1.170
    • Malpractice GPCI 0.931 changed to 0.854

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $54.95changed to$61.62

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 1.27 changed to 1.43

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $53.27changed to$54.95

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 1.23 changed to 1.27
    • Work GPCI 1.026 changed to 1.027
    • Practice expense GPCI 1.151 changed to 1.146
    • Malpractice GPCI 0.713 changed to 0.931

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $44.97changed to$53.27

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 1.03 changed to 1.23
    • Work GPCI 1.025 changed to 1.026
    • Practice expense GPCI 1.155 changed to 1.151
    • Malpractice GPCI 0.495 changed to 0.713

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $45.14changed to$44.97

    • Conversion factor 35.9335 changed to 35.8043

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $44.91changed to$45.14

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $44.47changed to$44.91

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 1.02 changed to 1.03
    • Practice expense GPCI 1.150 changed to 1.155
    • Malpractice GPCI 0.688 changed to 0.495

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $45.99changed to$44.47

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 1.12 changed to 1.02
    • Practice expense GPCI 1.144 changed to 1.150
    • Malpractice GPCI 0.881 changed to 0.688

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $45.99

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$76.15$2.79RVU26D
2026-07-01$76.15$2.79RVU26C
2026-04-01$76.15$2.79RVU26B
2026-01-01$76.15$2.79RVU26A
2025-10-01$75.70$3.48RVU25D
2025-07-01$75.70$3.48RVU25C
2025-04-01$75.70$3.48RVU25B
2025-01-01$75.70$3.48RVU25A
2024-10-01$81.96$3.18RVU24D
2024-07-01$81.96$3.18RVU24C
2024-04-01$81.96$3.18RVU24B
2024-03-09$81.96$3.18RVU24AR
2024-01-01$80.63$3.13RVU24A
2023-10-01$73.97$3.21RVU23D
2023-07-01$73.97$3.21RVU23C
2023-04-01$73.97$3.21RVU23B
2023-01-01$73.97$3.21RVU23A
2022-10-01$76.80$3.25RVU22D
2022-07-01$76.80$3.25RVU22C
2022-04-01$76.80$3.25RVU22B
2022-01-01$76.80$3.25RVU22A
2021-10-01$76.18$3.27RVU21D
2021-07-01$76.18$3.27RVU21C
2021-04-01$76.18$3.27RVU21B
2021-01-01$76.18$3.27RVU21A
2020-10-01$67.14$3.39RVU20D
2020-07-01$67.14$3.39RVU20C
2020-04-01$67.14$3.39RVU20B
2020-01-01$67.14$3.39RVU20A
2019-10-01$61.62$3.38RVU19D
2019-07-01$61.62$3.38RVU19C
2019-04-01$61.62$3.38RVU19B
2019-01-01$61.62$3.38RVU19A
2018-10-01$54.95$3.38RVU18D
2018-07-01$54.95$3.38RVU18C
2018-04-01$54.95$3.38RVU18B
2018-01-01$54.95$3.38RVU18AR1
2017-10-01$53.27$3.29RVU17D
2017-07-01$53.27$3.29RVU17C
2017-04-01$53.27$3.29RVU17B
2017-01-01$53.27$3.29RVU17A
2016-10-01$44.97$3.21RVU16D
2016-07-01$44.97$3.21RVU16C
2016-04-01$44.97$3.21RVU16B
2016-01-01$44.97$3.21RVU16A
2015-10-01$45.14$3.22RVU15D
2015-07-01$45.14$3.22RVU15C
2015-04-01$44.91$3.20RVU15B
2015-01-01$44.91$3.20RVU15A
2014-10-01$44.47$3.27RVU14D
2014-07-01$44.47$3.27RVU14C
2014-04-01$44.47$3.27RVU14B
2014-01-01$44.47$3.27RVU14A
2013-10-01$45.99$3.17RVU13D
2013-07-01$45.99$3.17RVU13C
2013-04-01$45.99$3.17RVU13B
2013-01-01$45.99$3.17RVU13AR

Price 95146 for an earlier date of service

Where the King County, WA rate applies

King County, WA is a Medicare payment area, not a city. Our Census mapping connects it to 63 cities and communities in Washington. Some span more than one payment area; confirm with the service ZIP.

  • Seattle
  • Algona
  • Ames Lake
  • 95146 in Auburn · multiple payment areas
  • Baring
  • Beaux Arts Village
  • Bellevue
  • Black Diamond

Browse all communities in Washington

95146 billing questions

How is this code distinguished from 95145 or 95147?

This code is for antigen preparation and provision involving two stinging-insect venoms. Use 95145 for one venom and 95147 for three.

Does this code include the venom injection?

No. It represents supervision of venom antigen preparation and provision, not administration. When injections are given, the applicable injection service is selected separately.

How should the venom count be determined?

Count the distinct stinging-insect venoms represented in the prepared or provided immunotherapy antigens. The code covers two venom types, not two injections.

Is this the right code for nonvenom allergy extracts?

No. This code is for stinging-insect venom antigens. Code 95165 is used for preparation and provision of nonvenom allergen antigens.

What documentation supports reporting this service?

The record should support the prescribed venom immunotherapy and identify the two distinct venom antigens prepared or provided for the patient.

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 95146PPRRVU2026_Oct_nonQPP.csv, line 12,483 (RVU26D)
Geographic factors for King County, WAGPCI2026.csv, line 108 (RVU26D)

Open CMS sourceHow we calculate rates

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