Electrodiagnostic Testing (CPB 0502, reviewed 2026-07-29)
Aetna covers nerve conduction studies, needle EMG, neuromuscular junction testing, late responses (H-reflex and F-wave studies) and blink reflex studies when the listed criteria are met. Aetna considers two EDX tests per year medically necessary per diagnosis, and considers one additional test per year for listed conditions when medical records document the need. Aetna considers nerve conduction studies experimental, investigational, or unproven for screening neuropathy when symptoms and physical findings are mild, primarily sensory and have a known cause.