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

Medicare pays $400.14 for 95938 nationally in the office. Local office rates run $346.64–$564.97.

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

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.

Where 95938 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

95938 rates by state

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

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.

Payment rules and modifiers for 95938

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

What modifiers do to the payment

When to use modifier 26

95938 compared with similar codes

How to choose

95925Evoked potentialUpper limbs

95925 covers upper-limb somatosensory testing; 95938 is used when both upper and lower limbs are tested.

95926Somatosensory testingLower-limb short latency

95926 covers lower-limb somatosensory testing; 95938 is used when testing includes both upper and lower limbs.

95927Somatosensory testingTrunk or head

95927 uses dermatomal stimulation. Choose 95938 for testing upper- and lower-limb sensory pathways through peripheral nerve stimulation.

95939Motor evoked potentialsUpper and lower limbs

95939 evaluates motor evoked potentials in upper and lower limbs. 95938 evaluates somatosensory pathways.

Codes related to 95938

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