CPT code 95923: Sweat function test, sudomotor testing2026 Medicare rate & RVUs in King County, WA
Reports sudomotor autonomic testing, such as QSART or thermoregulatory sweat testing, to evaluate sweat-gland responses in suspected autonomic dysfunction.
In King County, WA, Medicare pays $144.52 for 95923 in the office.
Check a contract rate as a % of Medicare · 95923 nationwide
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 11 sections
What 95923 covers
Code 95923 represents testing of sweat-gland responses as an indicator of autonomic nerve function. The service may use QSART, a silastic sweat imprint, thermoregulatory sweat testing, or more than one of these approaches, with interpretation and a report. Neurologists and other clinicians who evaluate autonomic disorders commonly order it for problems such as suspected autonomic or small-fiber neuropathy, abnormal sweating, or related sensory and autonomic symptoms. Testing is generally performed in an autonomic or neurodiagnostic laboratory.
Choose 95923 when the function being evaluated is sudomotor, rather than parasympathetic or adrenergic function. Documentation should identify the clinical reason for testing, the method or methods performed, relevant results, and the interpretation. The service includes the interpretation and report. CMS recognizes a professional component billed with modifier 26 for interpretation and a technical component billed with modifier TC for equipment and staff; billing without either modifier represents the global service.
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 95923
Across 109 of 109 payment localities, the office rate for 95923 runs from $108.87 in Arkansas to $165.49 in San Benito County, CA. King County, WA pays $144.52. The RVUs are the same everywhere; the geographic indexes change the dollars.
- King County, WA · this page$144.52
- Rest of Washington · Washington$127.41−$17.11
- Los Angeles, CA · California$139.97−$4.55
- Washington, DC area · District of Columbia$140.65−$3.87
- Miami, FL · Florida$128.89−$15.63
- Chicago, IL · Illinois$125.41−$19.11
- Manhattan, NY · New York$140.27−$4.25
Other areas in Washington first, then benchmark localities. Bars start at $0.
Every other payment area
| Payment locality | Office | Facility |
|---|---|---|
| AlaskaAlaska | $142.48 | — |
| AlabamaAlabama | $110.42 | — |
| ArkansasArkansas | $108.87 | — |
| ArizonaArizona | $119.50 | — |
| Bakersfield, CACalifornia | $131.27 | — |
| Chico, CACalifornia | $131.09 | — |
| El Centro, CACalifornia | $131.10 | — |
| Fresno, CACalifornia | $131.09 | — |
| Hanford, CACalifornia | $131.09 | — |
| Madera, CACalifornia | $131.09 | — |
| Merced, CACalifornia | $131.09 | — |
| Modesto, CACalifornia | $131.09 | — |
| Napa, CACalifornia | $152.71 | — |
| Oxnard, CACalifornia | $139.43 | — |
| Redding, CACalifornia | $131.09 | — |
| Rest of CaliforniaCalifornia | $131.09 | — |
| Riverside, CACalifornia | $131.65 | — |
| Sacramento, CACalifornia | $137.78 | — |
| Salinas, CACalifornia | $137.27 | — |
| San Diego, CACalifornia | $140.64 | — |
| Marin County, CACalifornia | $161.99 | — |
| San Francisco, CACalifornia | $161.94 | — |
| San Benito County, CACalifornia | $165.49 | — |
| Santa Clara County, CACalifornia | $165.26 | — |
| San Luis Obispo, CACalifornia | $135.03 | — |
| Santa Cruz, CACalifornia | $142.10 | — |
| Santa Maria, CACalifornia | $137.82 | — |
| Santa Rosa, CACalifornia | $143.55 | — |
| Stockton, CACalifornia | $131.09 | — |
| Vallejo, CACalifornia | $152.63 | — |
| Visalia, CACalifornia | $131.09 | — |
| Yuba City, CACalifornia | $131.09 | — |
| ColoradoColorado | $128.43 | — |
| ConnecticutConnecticut | $130.57 | — |
| DelawareDelaware | $121.46 | — |
| Fort Lauderdale, FLFlorida | $125.12 | — |
| Rest of FloridaFlorida | $119.39 | — |
| Atlanta, GAGeorgia | $124.47 | — |
| Rest of GeorgiaGeorgia | $113.02 | — |
| Hawaii, Guam, HIHawaii | $134.42 | — |
| IowaIowa | $113.80 | — |
| IdahoIdaho | $114.38 | — |
| East St. Louis, ILIllinois | $116.95 | — |
| Rest of IllinoisIllinois | $115.56 | — |
| Suburban Chicago, ILIllinois | $126.55 | — |
| IndianaIndiana | $115.04 | — |
| KansasKansas | $112.97 | — |
| KentuckyKentucky | $112.28 | — |
| New Orleans, LALouisiana | $117.41 | — |
| Rest of LouisianaLouisiana | $111.99 | — |
| Metropolitan Boston, MAMassachusetts | $141.36 | — |
| Rest of MassachusettsMassachusetts | $127.56 | — |
| Baltimore area, MDMaryland | $130.13 | — |
| Rest of MarylandMaryland | $123.84 | — |
| Rest of MaineMaine | $114.63 | — |
| Southern Maine, MEMaine | $121.14 | — |
| Detroit, MIMichigan | $120.52 | — |
| Rest of MichiganMichigan | $114.83 | — |
| MinnesotaMinnesota | $124.06 | — |
| Metropolitan Kansas City, MOMissouri | $116.96 | — |
| Metropolitan St. Louis, MOMissouri | $118.19 | — |
| Rest of MissouriMissouri | $109.91 | — |
| MississippiMississippi | $109.42 | — |
| MontanaMontana | $122.58 | — |
| North CarolinaNorth Carolina | $115.85 | — |
| North DakotaNorth Dakota | $121.59 | — |
| NebraskaNebraska | $114.50 | — |
| New HampshireNew Hampshire | $126.12 | — |
| Northern New JerseyNew Jersey | $139.19 | — |
| Rest of New JerseyNew Jersey | $132.34 | — |
| New MexicoNew Mexico | $115.32 | — |
| NevadaNevada | $122.39 | — |
| NYC suburbs and Long Island, NYNew York | $143.19 | — |
| Poughkeepsie and northern NYC suburbs, NYNew York | $132.95 | — |
| Queens, NYNew York | $141.86 | — |
| Rest of New YorkNew York | $117.51 | — |
| OhioOhio | $114.63 | — |
| OklahomaOklahoma | $112.42 | — |
| Portland, OROregon | $132.78 | — |
| Rest of OregonOregon | $121.72 | — |
| Metropolitan Philadelphia, PAPennsylvania | $127.18 | — |
| Rest of PennsylvaniaPennsylvania | $114.98 | — |
| Puerto RicoPuerto Rico | $123.56 | — |
| Rhode IslandRhode Island | $125.98 | — |
| South CarolinaSouth Carolina | $115.38 | — |
| South DakotaSouth Dakota | $121.47 | — |
| TennesseeTennessee | $113.48 | — |
| Austin, TXTexas | $127.76 | — |
| Beaumont, TXTexas | $114.23 | — |
| Brazoria, TXTexas | $121.63 | — |
| Dallas, TXTexas | $122.24 | — |
| Fort Worth, TXTexas | $121.35 | — |
| Galveston, TXTexas | $121.89 | — |
| Houston, TXTexas | $122.80 | — |
| Rest of TexasTexas | $117.75 | — |
| UtahUtah | $116.92 | — |
| VirginiaVirginia | $120.53 | — |
| Virgin Islands, VIUnited States Virgin Islands | $123.56 | — |
| VermontVermont | $120.84 | — |
| WisconsinWisconsin | $117.58 | — |
| West VirginiaWest Virginia | $111.31 | — |
| WyomingWyoming | $122.15 | — |
95923 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.
$108.87
$148.29
Color shows the midpoint of each state’s locality range.
View every state and territory as a table
| State / territory | Office rate range | Localities |
|---|---|---|
| AK | $142.48 | 1 |
| AL | $110.42 | 1 |
| AR | $108.87 | 1 |
| AZ | $119.50 | 1 |
| CA | $131.09–$165.49 | 29 |
| CO | $128.43 | 1 |
| CT | $130.57 | 1 |
| DC | $140.65 | 1 |
| DE | $121.46 | 1 |
| FL | $119.39–$128.89 | 3 |
| GA | $113.02–$124.47 | 2 |
| GU | $134.42 | 1 |
| HI | $134.42 | 1 |
| IA | $113.80 | 1 |
| ID | $114.38 | 1 |
| IL | $115.56–$126.55 | 4 |
| IN | $115.04 | 1 |
| KS | $112.97 | 1 |
| KY | $112.28 | 1 |
| LA | $111.99–$117.41 | 2 |
| MA | $127.56–$141.36 | 2 |
| MD | $123.84–$140.65 | 3 |
| ME | $114.63–$121.14 | 2 |
| MI | $114.83–$120.52 | 2 |
| MN | $124.06 | 1 |
| MO | $109.91–$118.19 | 3 |
| MS | $109.42 | 1 |
| MT | $122.58 | 1 |
| NC | $115.85 | 1 |
| ND | $121.59 | 1 |
| NE | $114.50 | 1 |
| NH | $126.12 | 1 |
| NJ | $132.34–$139.19 | 2 |
| NM | $115.32 | 1 |
| NV | $122.39 | 1 |
| NY | $117.51–$143.19 | 5 |
| OH | $114.63 | 1 |
| OK | $112.42 | 1 |
| OR | $121.72–$132.78 | 2 |
| PA | $114.98–$127.18 | 2 |
| PR | $123.56 | 1 |
| RI | $125.98 | 1 |
| SC | $115.38 | 1 |
| SD | $121.47 | 1 |
| TN | $113.48 | 1 |
| TX | $114.23–$127.76 | 8 |
| UT | $116.92 | 1 |
| VA | $120.53–$140.65 | 2 |
| VI | $123.56 | 1 |
| VT | $120.84 | 1 |
| WA | $127.41–$144.52 | 2 |
| WI | $117.58 | 1 |
| WV | $111.31 | 1 |
| WY | $122.15 | 1 |
How the 95923 rate is calculated
Each of 95923’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 · 95923
RVUs × geographic indexes × conversion factor
Work0.88
0.88 RVUs× 1.000 GPCI
Practice expense2.74
2.74 RVUs× 1.000 GPCI
Malpractice0.05
0.05 RVUs× 1.000 GPCI
Adjusted RVUs
3.6700
Conversion factor
$33.4009
Medicare rate
$122.58
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
12,660
- Code
- 95923
- Physician work
- 0.88
- Practice expense
- 2.74
- Malpractice
- 0.05
GPCI2026.csv
108
- Locality
- King County, WA
- Physician work
- 1.050
- Practice expense
- 1.227
- Malpractice
- 0.817
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 0.88 | × 1.050 | 0.9240 |
| Practice expense | 2.74 | × 1.227 | 3.3620 |
| Malpractice | 0.05 | × 0.817 | 0.0408 |
| Total RVUs | 4.3268 | ||
| Conversion factor | × 33.4009 | ||
Office rate, King County, WA$144.52
Office: (0.88 × 1.05 + 2.74 × 1.227 + 0.05 × 0.817) × $33.4009 = $144.52
Payment rules and modifiers for 95923
The CMS indicators that decide how 95923 is paid alongside other services.
CMS payment indicators · 95923
Sweat function test, sudomotor testing
| Rule | CMS value | What it means |
|---|---|---|
| Global period | XXX | The global surgery concept doesn’t apply. |
| Multiple procedures | 0 | No multiple-procedure reduction. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 1 | Diagnostic test with separate professional (26) and technical (TC) components. |
What modifiers do to the payment
Modifier 26 · payment effect
With and without the modifier
95923 without 26 · national office
$122.58
Sweat function test, sudomotor testing
95923-26 · Professional component
$43.76
Pays only the interpretation and report.
How 95923 has changed in King County, WA
95923 · Office / nonfacility
$144.52
Effective 2026-10-01
The base rate is $10.96 higher than on 2025-10-01, moving from $133.56 to $144.52 (8.2%).
It is unchanged from the immediately preceding available release, effective 2026-07-01.
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
January 1, 2026
RVU26A
$133.56changed to$144.52
- Conversion factor 32.3465 changed to 33.4009
- Work RVU 0.90 changed to 0.88
- Practice expense RVU 2.58 changed to 2.74
- 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.
January 1, 2025
RVU25A
$142.72changed to$133.56
- Conversion factor 33.2875 changed to 32.3465
- Practice expense RVU 2.71 changed to 2.58
Held through RVU25B, RVU25C, RVU25D.
March 9, 2024
RVU24AR
$140.39changed to$142.72
- Conversion factor 32.7442 changed to 33.2875
Held through RVU24B, RVU24C, RVU24D.
January 1, 2024
RVU24A
$144.73changed to$140.39
- Conversion factor 33.8872 changed to 32.7442
- Practice expense RVU 2.73 changed to 2.71
- 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
January 1, 2023
RVU23A
$149.30changed to$144.73
- Conversion factor 34.6062 changed to 33.8872
- Practice expense RVU 2.80 changed to 2.73
- 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.
January 1, 2022
RVU22A
$153.88changed to$149.30
- Conversion factor 34.8931 changed to 34.6062
- Practice expense RVU 2.88 changed to 2.80
Held through RVU22B, RVU22C, RVU22D.
January 1, 2021
RVU21A
$148.50changed to$153.88
- Conversion factor 36.0896 changed to 34.8931
- Practice expense RVU 2.68 changed to 2.88
- Malpractice RVU 0.06 changed to 0.05
- 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.
January 1, 2020
RVU20A
$146.01changed to$148.50
- Conversion factor 36.0391 changed to 36.0896
- 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.
January 1, 2019
RVU19A
$147.91changed to$146.01
- Conversion factor 35.9996 changed to 36.0391
- Practice expense RVU 2.73 changed to 2.68
Held through RVU19B, RVU19C, RVU19D.
January 1, 2018
RVU18AR1
$159.84changed to$147.91
- Conversion factor 35.8887 changed to 35.9996
- Practice expense RVU 3.03 changed to 2.73
- 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.
January 1, 2017
RVU17A
$186.04changed to$159.84
- Conversion factor 35.8043 changed to 35.8887
- Practice expense RVU 3.67 changed to 3.03
- Malpractice RVU 0.07 changed to 0.06
- 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.
January 1, 2016
RVU16A
$218.96changed to$186.04
- Conversion factor 35.9335 changed to 35.8043
- Practice expense RVU 4.46 changed to 3.67
- Malpractice RVU 0.04 changed to 0.07
Held through RVU16B, RVU16C, RVU16D.
July 1, 2015
RVU15C
$217.87changed to$218.96
- Conversion factor 35.7547 changed to 35.9335
Held through RVU15D.
January 1, 2015
RVU15A
$233.67changed to$217.87
- Conversion factor 35.8228 changed to 35.7547
- Practice expense RVU 4.84 changed to 4.46
- Malpractice RVU 0.05 changed to 0.04
- Practice expense GPCI 1.150 changed to 1.155
- Malpractice GPCI 0.688 changed to 0.495
Held through RVU15B.
January 1, 2014
RVU14A
$296.78changed to$233.67
- Conversion factor 34.0230 changed to 35.8228
- Practice expense RVU 6.78 changed to 4.84
- Practice expense GPCI 1.144 changed to 1.150
- Malpractice GPCI 0.881 changed to 0.688
Held through RVU14B, RVU14C, RVU14D.
January 1, 2013
RVU13AR
Earliest loaded release: $296.78
Held through RVU13B, RVU13C, RVU13D.
| Effective from | Office | Facility | CMS release |
|---|---|---|---|
| 2026-10-01 | $144.52 | Not available in this setting | RVU26D |
| 2026-07-01 | $144.52 | Not available in this setting | RVU26C |
| 2026-04-01 | $144.52 | Not available in this setting | RVU26B |
| 2026-01-01 | $144.52 | Not available in this setting | RVU26A |
| 2025-10-01 | $133.56 | Not available in this setting | RVU25D |
| 2025-07-01 | $133.56 | Not available in this setting | RVU25C |
| 2025-04-01 | $133.56 | Not available in this setting | RVU25B |
| 2025-01-01 | $133.56 | Not available in this setting | RVU25A |
| 2024-10-01 | $142.72 | Not available in this setting | RVU24D |
| 2024-07-01 | $142.72 | Not available in this setting | RVU24C |
| 2024-04-01 | $142.72 | Not available in this setting | RVU24B |
| 2024-03-09 | $142.72 | Not available in this setting | RVU24AR |
| 2024-01-01 | $140.39 | Not available in this setting | RVU24A |
| 2023-10-01 | $144.73 | Not available in this setting | RVU23D |
| 2023-07-01 | $144.73 | Not available in this setting | RVU23C |
| 2023-04-01 | $144.73 | Not available in this setting | RVU23B |
| 2023-01-01 | $144.73 | Not available in this setting | RVU23A |
| 2022-10-01 | $149.30 | Not available in this setting | RVU22D |
| 2022-07-01 | $149.30 | Not available in this setting | RVU22C |
| 2022-04-01 | $149.30 | Not available in this setting | RVU22B |
| 2022-01-01 | $149.30 | Not available in this setting | RVU22A |
| 2021-10-01 | $153.88 | Not available in this setting | RVU21D |
| 2021-07-01 | $153.88 | Not available in this setting | RVU21C |
| 2021-04-01 | $153.88 | Not available in this setting | RVU21B |
| 2021-01-01 | $153.88 | Not available in this setting | RVU21A |
| 2020-10-01 | $148.50 | Not available in this setting | RVU20D |
| 2020-07-01 | $148.50 | Not available in this setting | RVU20C |
| 2020-04-01 | $148.50 | Not available in this setting | RVU20B |
| 2020-01-01 | $148.50 | Not available in this setting | RVU20A |
| 2019-10-01 | $146.01 | Not available in this setting | RVU19D |
| 2019-07-01 | $146.01 | Not available in this setting | RVU19C |
| 2019-04-01 | $146.01 | Not available in this setting | RVU19B |
| 2019-01-01 | $146.01 | Not available in this setting | RVU19A |
| 2018-10-01 | $147.91 | Not available in this setting | RVU18D |
| 2018-07-01 | $147.91 | Not available in this setting | RVU18C |
| 2018-04-01 | $147.91 | Not available in this setting | RVU18B |
| 2018-01-01 | $147.91 | Not available in this setting | RVU18AR1 |
| 2017-10-01 | $159.84 | Not available in this setting | RVU17D |
| 2017-07-01 | $159.84 | Not available in this setting | RVU17C |
| 2017-04-01 | $159.84 | Not available in this setting | RVU17B |
| 2017-01-01 | $159.84 | Not available in this setting | RVU17A |
| 2016-10-01 | $186.04 | Not available in this setting | RVU16D |
| 2016-07-01 | $186.04 | Not available in this setting | RVU16C |
| 2016-04-01 | $186.04 | Not available in this setting | RVU16B |
| 2016-01-01 | $186.04 | Not available in this setting | RVU16A |
| 2015-10-01 | $218.96 | Not available in this setting | RVU15D |
| 2015-07-01 | $218.96 | Not available in this setting | RVU15C |
| 2015-04-01 | $217.87 | Not available in this setting | RVU15B |
| 2015-01-01 | $217.87 | Not available in this setting | RVU15A |
| 2014-10-01 | $233.67 | Not available in this setting | RVU14D |
| 2014-07-01 | $233.67 | Not available in this setting | RVU14C |
| 2014-04-01 | $233.67 | Not available in this setting | RVU14B |
| 2014-01-01 | $233.67 | Not available in this setting | RVU14A |
| 2013-10-01 | $296.78 | Not available in this setting | RVU13D |
| 2013-07-01 | $296.78 | Not available in this setting | RVU13C |
| 2013-04-01 | $296.78 | Not available in this setting | RVU13B |
| 2013-01-01 | $296.78 | Not available in this setting | RVU13AR |
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
- 95923 in Auburn · multiple payment areas
- Baring
- Beaux Arts Village
- Bellevue
- Black Diamond
95923 billing questions
When should 95923 be selected instead of 95921 or 95922?
Use 95923 for sudomotor function, assessed through sweat responses. Codes 95921 and 95922 address parasympathetic and adrenergic function, respectively.
Does 95923 include interpretation and reporting?
Yes. The service includes interpretation and a report; CMS also permits separate professional and technical component billing with modifiers 26 and TC.
What do modifiers 26 and TC represent for this code?
Modifier 26 identifies the professional interpretation component, while TC identifies the technical work involving equipment and staff. Without either modifier, the claim represents the global service.
Can more than one sudomotor method be part of 95923?
Yes. The service may include one or more methods such as QSART, silastic sweat imprint, and thermoregulatory sweat testing.
What documentation supports 95923?
Record the reason for testing, the sudomotor method or methods performed, the findings, and the interpretation linking the results to the clinical question.
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
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