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CPT code 95938: Sensory evoked potentials, upper and lower limbs2026 Medicare rate & RVUs in Minnesota

Reports somatosensory evoked-potential testing of upper and lower limb pathways, often used to assess sensory conduction or monitor neural function during surgery.

CMS RVU26DEffective Oct 1, 2026One payment locality102.8K Medicare services in 2024

In Minnesota, Medicare pays $408.73 for 95938 in the office.

$408.73Office (non-facility)
Not available in this settingHospital or facility
+2.1%vs the national office rate ($400.14)

Check a contract rate as a % of Medicare · 95938 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 95938 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Minnesota
  2. What 95938 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 95938 covers

This study evaluates sensory pathways by stimulating peripheral nerves in the upper and lower limbs and recording evoked responses along the pathway, including at peripheral, spinal, and cortical sites. Neurologists or other qualified clinicians interpret the responses; trained technical staff may perform the stimulation and recording. The study may be performed in a diagnostic neurophysiology laboratory or during surgery when sensory pathway monitoring is needed.

Select this code when the testing covers both upper and lower limbs, rather than only one limb group or dermatomal stimulation. The report should identify the nerves or sites tested, the recorded responses, and the interpretation. Medicare recognizes professional and technical components: report modifier 26 for interpretation, modifier TC for equipment and staff, or neither modifier for the global service. The code is priced as bilateral, so modifier 50 does not increase payment.

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 Minnesota compares for 95938

Across 109 of 109 payment localities, the office rate for 95938 runs from $346.64 in Arkansas to $564.97 in San Benito County, CA. Minnesota pays $408.73. The RVUs are the same everywhere; the geographic indexes change the dollars.

95938 in Minnesota vs other payment areas
  1. Minnesota · this page$408.73
  2. Los Angeles, CA · California$467.82+$59.09
  3. Washington, DC area · District of Columbia$467.69+$58.96
  4. Miami, FL · Florida$419.87+$11.14
  5. Chicago, IL · Illinois$406.08−$2.65
  6. Manhattan, NY · New York$463.49+$54.76
  7. Alaska · Alaska$436.81+$28.08

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

Every other payment area

95938 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$352.70—
ArkansasArkansas$346.64—
ArizonaArizona$388.27—
Bakersfield, CACalifornia$434.93—
Chico, CACalifornia$434.66—
El Centro, CACalifornia$434.67—
Fresno, CACalifornia$434.66—
Hanford, CACalifornia$434.66—

95938 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.

$346.64

$499.82

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

View every state and territory as a table
95938 office rate range by state
State / territoryOffice rate rangeLocalities
AK$436.811
AL$352.701
AR$346.641
AZ$388.271
CA$434.66–$564.9729
CO$423.441
CT$429.751
DC$467.691
DE$395.551
FL$385.42–$419.873
GA$360.86–$406.742
GU$449.441
HI$449.441
IA$366.961
ID$369.031
IL$369.73–$412.634
IN$371.651
KS$363.221
KY$358.921
LA$357.57–$378.782
MA$419.54–$472.562
MD$404.61–$467.693
ME$369.48–$395.712
MI$368.42–$389.292
MN$408.731
MO$349.13–$382.433
MS$348.061
MT$400.141
NC$374.331
ND$398.361
NE$369.851
NH$414.901
NJ$435.51–$461.172
NM$370.111
NV$400.011
NY$380.80–$474.275
OH$368.061
OK$359.981
OR$397.77–$440.792
PA$369.71–$416.362
PR$404.161
RI$412.531
SC$371.641
SD$398.151
TN$365.161
TX$366.71–$421.268
UT$377.691
VA$392.98–$467.692
VI$404.161
VT$394.971
WA$419.35–$484.782
WI$382.561
WV$353.091
WY$399.361

See 95938 in every payment locality

How the 95938 rate is calculated

Each of 95938’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 · 95938

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.84

0.84 RVUs× 1.000 GPCI

Practice expense11.05

11.05 RVUs× 1.000 GPCI

Malpractice0.09

0.09 RVUs× 1.000 GPCI

Adjusted RVUs

11.9800

Conversion factor

$33.4009

Medicare rate

$400.14

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

The exact Minnesota inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

12,690

Code
95938
Physician work
0.84
Practice expense
11.05
Malpractice
0.09

GPCI2026.csv

66

Locality
Minnesota
Physician work
1.000
Practice expense
1.029
Malpractice
0.296
Office calculation for 95938 in Minnesota
ComponentRVULocality factorAdjusted
Physician work0.84× 1.0000.8400
Practice expense11.05× 1.02911.3704
Malpractice0.09× 0.2960.0266
Total RVUs12.2371
Conversion factor× 33.4009

Office rate, Minnesota$408.73

Office: (0.84 × 1 + 11.05 × 1.029 + 0.09 × 0.296) × $33.4009 = $408.73

Open 95938 in the RVU calculator

Payment rules and modifiers for 95938

The CMS indicators that decide how 95938 is paid alongside other services.

CMS payment indicators · 95938

Sensory evoked potentials, upper and lower limbs

RuleCMS valueWhat it means
Global periodXXXThe global surgery concept doesn’t apply.
Multiple procedures0No multiple-procedure reduction.
Bilateral (modifier 50)2Already bilateral by definition: paid once at 100%.
Assistant at surgery (80/81/82/AS)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical1Diagnostic test with separate professional (26) and technical (TC) components.

What modifiers do to the payment

Modifier 26 · payment effect

With and without the modifier

95938 without 26 · national office

$400.14

Sensory evoked potentials, upper and lower limbs

95938-26 · Professional component

$45.09

Pays only the interpretation and report.

When to use modifier 26

Codes related to 95938

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

Codes related to 95938
CodeHow it relatesOffice range, Minnesota
Same family
95925Evoked potential, upper limbsSomatosensory evoked-potential testing for upper limbs.$154.06
95926Somatosensory testing, lower-limb short latencySomatosensory evoked-potential testing for lower limbs.$138.15
95927Somatosensory testing, trunk or headSomatosensory evoked-potential testing using dermatomal stimulation.$172.96
Used instead
95939Motor evoked potentials, upper and lower limbsTests motor evoked potentials in upper and lower limbs, rather than sensory pathways.$600.48

How 95938 has changed in Minnesota

95938 · Office / nonfacility

$408.73

Effective 2026-10-01

The base rate is $40.96 higher than on 2025-10-01, moving from $367.77 to $408.73 (11.1%).

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

    $367.77changed to$408.73

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 0.86 changed to 0.84
    • Practice expense RVU 10.23 changed to 11.05
    • Malpractice RVU 0.08 changed to 0.09
    • Practice expense GPCI 1.025 changed to 1.029
    • Malpractice GPCI 0.300 changed to 0.296

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $380.96changed to$367.77

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 10.30 changed to 10.23
    • Malpractice RVU 0.09 changed to 0.08

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $374.74changed to$380.96

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $373.27changed to$374.74

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 9.94 changed to 10.30
    • Malpractice RVU 0.08 changed to 0.09
    • Practice expense GPCI 1.019 changed to 1.025
    • Malpractice GPCI 0.326 changed to 0.300

  5. January 1, 2023

    RVU23A

    $375.69changed to$373.27

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 9.84 changed to 9.94
    • Practice expense GPCI 1.013 changed to 1.019
    • Malpractice GPCI 0.353 changed to 0.326

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $371.74changed to$375.69

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 9.64 changed to 9.84

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $358.11changed to$371.74

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 8.92 changed to 9.64
    • Malpractice RVU 0.10 changed to 0.08
    • Practice expense GPCI 1.012 changed to 1.013
    • Malpractice GPCI 0.357 changed to 0.353

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $354.49changed to$358.11

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 8.85 changed to 8.92
    • Malpractice RVU 0.08 changed to 0.10
    • Practice expense GPCI 1.011 changed to 1.012
    • Malpractice GPCI 0.362 changed to 0.357

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $354.47changed to$354.49

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 8.86 changed to 8.85

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $350.89changed to$354.47

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 8.75 changed to 8.86
    • Practice expense GPCI 1.016 changed to 1.011
    • Malpractice GPCI 0.341 changed to 0.362

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $350.16changed to$350.89

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 8.72 changed to 8.75
    • Practice expense GPCI 1.020 changed to 1.016
    • Malpractice GPCI 0.319 changed to 0.341

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $350.46changed to$350.16

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 8.70 changed to 8.72
    • Malpractice RVU 0.06 changed to 0.08

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $348.72changed to$350.46

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $341.66changed to$348.72

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 8.52 changed to 8.70
    • Malpractice RVU 0.07 changed to 0.06
    • Practice expense GPCI 1.016 changed to 1.020
    • Malpractice GPCI 0.301 changed to 0.319

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $335.68changed to$341.66

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 8.88 changed to 8.52
    • Practice expense GPCI 1.012 changed to 1.016
    • Malpractice GPCI 0.282 changed to 0.301

    Held through RVU14B, RVU14C, RVU14D.

  16. October 1, 2013

    RVU13D

    No ratechanged to$335.68

  17. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$408.73Not available in this settingRVU26D
2026-07-01$408.73Not available in this settingRVU26C
2026-04-01$408.73Not available in this settingRVU26B
2026-01-01$408.73Not available in this settingRVU26A
2025-10-01$367.77Not available in this settingRVU25D
2025-07-01$367.77Not available in this settingRVU25C
2025-04-01$367.77Not available in this settingRVU25B
2025-01-01$367.77Not available in this settingRVU25A
2024-10-01$380.96Not available in this settingRVU24D
2024-07-01$380.96Not available in this settingRVU24C
2024-04-01$380.96Not available in this settingRVU24B
2024-03-09$380.96Not available in this settingRVU24AR
2024-01-01$374.74Not available in this settingRVU24A
2023-10-01$373.27Not available in this settingRVU23D
2023-07-01$373.27Not available in this settingRVU23C
2023-04-01$373.27Not available in this settingRVU23B
2023-01-01$373.27Not available in this settingRVU23A
2022-10-01$375.69Not available in this settingRVU22D
2022-07-01$375.69Not available in this settingRVU22C
2022-04-01$375.69Not available in this settingRVU22B
2022-01-01$375.69Not available in this settingRVU22A
2021-10-01$371.74Not available in this settingRVU21D
2021-07-01$371.74Not available in this settingRVU21C
2021-04-01$371.74Not available in this settingRVU21B
2021-01-01$371.74Not available in this settingRVU21A
2020-10-01$358.11Not available in this settingRVU20D
2020-07-01$358.11Not available in this settingRVU20C
2020-04-01$358.11Not available in this settingRVU20B
2020-01-01$358.11Not available in this settingRVU20A
2019-10-01$354.49Not available in this settingRVU19D
2019-07-01$354.49Not available in this settingRVU19C
2019-04-01$354.49Not available in this settingRVU19B
2019-01-01$354.49Not available in this settingRVU19A
2018-10-01$354.47Not available in this settingRVU18D
2018-07-01$354.47Not available in this settingRVU18C
2018-04-01$354.47Not available in this settingRVU18B
2018-01-01$354.47Not available in this settingRVU18AR1
2017-10-01$350.89Not available in this settingRVU17D
2017-07-01$350.89Not available in this settingRVU17C
2017-04-01$350.89Not available in this settingRVU17B
2017-01-01$350.89Not available in this settingRVU17A
2016-10-01$350.16Not available in this settingRVU16D
2016-07-01$350.16Not available in this settingRVU16C
2016-04-01$350.16Not available in this settingRVU16B
2016-01-01$350.16Not available in this settingRVU16A
2015-10-01$350.46Not available in this settingRVU15D
2015-07-01$350.46Not available in this settingRVU15C
2015-04-01$348.72Not available in this settingRVU15B
2015-01-01$348.72Not available in this settingRVU15A
2014-10-01$341.66Not available in this settingRVU14D
2014-07-01$341.66Not available in this settingRVU14C
2014-04-01$341.66Not available in this settingRVU14B
2014-01-01$341.66Not available in this settingRVU14A
2013-10-01$335.68Not available in this settingRVU13D
2013-07-01Rate data unavailableNot available in this settingRVU13C
2013-04-01Rate data unavailableNot available in this settingRVU13B
2013-01-01Rate data unavailableNot available in this settingRVU13AR

Price 95938 for an earlier date of service

Where the Minnesota rate applies

Minnesota is a Medicare payment area, not a city. Our Census mapping connects it to 916 cities and communities in Minnesota. Some span more than one payment area; confirm with the service ZIP.

  • Ada
  • Adams
  • Adrian
  • Afton
  • Aitkin
  • Akeley
  • Albany
  • Albert Lea

Browse all communities in Minnesota

95938 billing questions

When should 95938 be chosen over 95925 or 95926?

Use 95938 for somatosensory evoked-potential testing that covers both upper and lower limbs. Codes 95925 and 95926 describe testing of upper limbs and lower limbs, respectively.

Does 95938 include bilateral testing?

Yes. CMS prices the code as bilateral; modifier 50 does not increase payment.

Which component modifier should be reported?

Report modifier 26 for the professional interpretation or modifier TC for the technical service. Report the global service without either modifier.

Is 95938 a sensory or motor evoked-potential study?

It is a somatosensory study of sensory pathways. Motor evoked-potential testing is distinct; 95939 covers upper- and lower-limb motor evoked potentials.

What documentation supports reporting 95938?

Document the upper- and lower-limb nerves or sites stimulated, the responses recorded, and the clinician's interpretation of the findings.

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 95938PPRRVU2026_Oct_nonQPP.csv, line 12,690 (RVU26D)
Geographic factors for MinnesotaGPCI2026.csv, line 66 (RVU26D)

Open CMS sourceHow we calculate rates

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