Detect small fiber nerve damage that standard testing misses.
Small fiber neuropathy is a common cause of chronic pain, burning, and numbness — yet standard nerve conduction studies only assess large fibers. VitalScan's SudoCheck technology evaluates sudomotor small nerve fiber function, providing objective data on the nerve damage that conventional testing cannot detect.
Why small fiber neuropathy testing matters.
Small fiber neuropathy (SFN) affects the small, unmyelinated nerve fibers responsible for pain, temperature, and autonomic function. It is a common cause of chronic pain and burning sensations, but standard nerve conduction studies (NCS) only assess large myelinated fibers — meaning SFN is frequently missed. Sudomotor testing (SudoCheck) evaluates the small autonomic nerve fibers that control sweat response, providing objective evidence of small fiber damage. This makes VitalScan an essential diagnostic tool for patients with unexplained chronic pain.
Built for the specialties that manage this condition.
Billable under standard CPT codes.
95921–95924Autonomic nervous system function testing93922–93971Vascular studies for neurological assessmentWhat it adds to your practice.
Estimated monthly revenue
3 tests/day × ~$200 avg = $12,000/month
Based on 3 tests per day, 20 working days per month. Actual reimbursement varies by payer and region.
Non-invasive, automated, and reproducible. The entire assessment fits into a single patient visit — no special prep, no dedicated technician required.
Ready to add small fiber neuropathy testing to your practice?
Get a personalized ROI analysis with clinical workflow, CPT billing guidance, and financing options — including Section 179 and grant pathways.