CPT code 95928: Motor evoked potentials, upper limbs2026 Medicare rate & RVUs in Maine
Reports central motor pathway testing that records evoked responses from upper-limb muscles, including during procedures that place motor pathways at risk.
Medicare pays $238.70–$253.24 for 95928 in the office in Maine, from Rest of Maine to Southern Maine, ME. Which amount applies depends on the service address.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
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On this page 9 sections
What 95928 covers
This study evaluates motor pathway conduction from the brain to upper-limb muscles by stimulating the motor system and recording the resulting responses. It is commonly used during procedures such as cervical spine surgery when the team needs to monitor motor pathway function. A neurophysiology professional interprets the responses, while trained technical staff may perform the acquisition in an operating room or diagnostic setting.
Select 95928 for upper-limb motor evoked potential testing; use the code for the bilateral service rather than adding modifier 50 to increase payment. Documentation should identify the tested limbs, stimulation and recording performed, results, and the interpretation. Medicare recognizes professional and technical components: modifier 26 reports interpretation, modifier TC reports equipment and staff, and no component modifier represents the global service. The components are separately priced.
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.
Where 95928 pays more and less in Maine
| Payment locality | Office | Facility |
|---|---|---|
| Rest of Maine | $238.70 | Unavailable |
| Southern Maine, ME | $253.24 | Unavailable |
How the 95928 rate is calculated
Each of 95928’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 · 95928
RVUs × geographic indexes × conversion factor
Work1.46
1.46 RVUs× 1.000 GPCI
Practice expense6.12
6.12 RVUs× 1.000 GPCI
Malpractice0.09
0.09 RVUs× 1.000 GPCI
Adjusted RVUs
7.6700
Conversion factor
$33.4009
Medicare rate
$256.18
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 95928
The CMS indicators that decide how 95928 is paid alongside other services.
CMS payment indicators · 95928
Motor evoked potentials, upper limbs
| 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) | 2 | Already bilateral by definition: paid once at 100%. |
| 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
95928 without 26 · national office
$256.18
Motor evoked potentials, upper limbs
95928-26 · Professional component
$79.16
Pays only the interpretation and report.
95928 compared with similar codes
Compare codes · National
5 codes, side by side
How to choose
- 95929Motor evoked studyLower limbs
- 95929 is for lower-limb central motor evoked potential testing; 95928 is for upper limbs.
- 95939Motor evoked potentialsUpper and lower limbs
- 95939 covers central motor evoked potential testing of both upper and lower limbs, rather than upper limbs alone.
- 95925Evoked potentialUpper limbs
- 95925 evaluates somatosensory responses in the upper limbs. Choose 95928 for central motor pathway responses.
- 95938Sensory evoked potentialsUpper and lower limbs
- 95938 evaluates somatosensory responses in upper and lower limbs; 95928 evaluates motor responses in the upper limbs.
95928 billing questions
When should 95928 be selected instead of 95929?
Use 95928 for central motor evoked potential testing of the upper limbs. Code 95929 is the lower-limb counterpart.
Does 95928 include testing on both sides?
Yes. CMS prices the code as bilateral, and modifier 50 does not increase payment.
How should the professional and technical work be billed?
Use modifier 26 for the professional interpretation or TC for the technical service. Without either modifier, the claim represents the global service.
Can 95928 be reported with somatosensory evoked potential testing?
The motor study evaluates motor pathway responses, while somatosensory testing evaluates sensory pathways. Report somatosensory testing only when that distinct study was also performed and documented.
What documentation supports 95928?
Document the upper-limb testing performed, the responses obtained, and the interpretation. For a component claim, the record should support the professional interpretation or the technical work reported.
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
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