CPT code 95909 describes a diagnostic nerve conduction study comprising five or six individual conduction tests to evaluate motor and sensory nerve function. Nerve conduction studies are central to diagnosing peripheral neuropathies, nerve entrapments, and monitoring neuromuscular disease progression, making this code important for neurology, physiatry, and electrodiagnostic services nationwide. Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.

Readers will find clinical context for when a multi-test nerve conduction study is used, the typical service setting, and operational considerations relevant to billing and coverage. The publication presents benchmark information on utilization and payment patterns, highlights common documentation elements needed for medical necessity, and summarizes recent policy updates affecting coverage and claim adjudication for electrodiagnostic services. The goal is to give clinicians, coders, and administrators a concise reference on CPT code 95909 for coding accuracy, coverage expectations, and integration into clinical workflows.