Nerve Conduction Studies (NCS)

What are Nerve Conduction Studies (NCS)? Nerve conduction studies are a diagnostic tool used to evaluate the functioning of the peripheral nervous system. They measure the action potential created by stimulation of a peripheral nerve and the neurophysiologic response. The non-invasive nature and low risk posed by nerve conduction studies often make them the first tools used for the assessment of a peripheral nerve disorder. Nerve conduction studies may be conducted by neurologists, physiatrists, and physical therapists.

  • Diagnosis of focal and generalized peripheral nerve disorders
  • Differentiation of primary nerve and muscle disorders
  • Classification of nerve conduction abnormalities 

Source: LCD – Nerve Conduction Studies and Electromyography (L35897). (n.d.). CMS.Gov. Retrieved May 30, 2022, from