CPT code 95939: Motor evoked potentials, upper and lower limbs2026 Medicare rate & RVUs

Medicare pays $589.19 for 95939 nationally in the office. Local office rates run $514.71–$820.79.

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

What 95939 covers

This study uses transcranial stimulation and records muscle responses in the arms and legs to evaluate motor pathways from the brain through the spinal cord. Neurologists and other clinicians trained in clinical neurophysiology may perform or interpret it, with trained technical staff assisting in physician offices and hospital settings. A clinician may order it when evaluating suspected dysfunction affecting central motor pathways, such as spinal cord disease.

Choose this code when the study covers both upper and lower limbs; codes 95928 and 95929 distinguish upper-limb-only and lower-limb-only studies. The report should identify the tested limb regions, recorded responses, and interpretation. CMS recognizes separately priced professional and technical components: report modifier 26 for interpretation alone, TC for equipment and staff, or no component modifier for the complete 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.

Where 95939 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

95939 rates by state

Office rate range in each state. Select a state to see its payment localities.

How the 95939 rate is calculated

Each of 95939’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.

Payment rules and modifiers for 95939

The CMS indicators that decide how 95939 is paid alongside other services.

What modifiers do to the payment

When to use modifier 26

95939 compared with similar codes

How to choose

95928Motor evoked potentialsUpper limbs

Use 95928 for a central motor evoked-potential study of the upper limbs only; use 95939 when both upper and lower limbs are tested.

95929Motor evoked studyLower limbs

Use 95929 for a central motor evoked-potential study of the lower limbs only; use 95939 when both upper and lower limbs are tested.

95938Sensory evoked potentialsUpper and lower limbs

Code 95938 evaluates somatosensory pathways in upper and lower limbs. Code 95939 evaluates motor pathways using transcranial stimulation.

Codes related to 95939

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

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

Open CMS sourceHow we calculate rates