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CPT 92516: Electroneuronography for Facial Nerve Assessment
CPT code 92516 designates electroneuronography (ENoG), a noninvasive electrophysiologic test that electrically stimulates the facial nerve to evaluate its function and integrity in patients with facial nerve impairment. Nationally, the code captures a specialized diagnostic service used in assessing facial paralysis severity, prognosis, and recovery trajectory, informing clinical management and surgical decision-making. Coverage and utilization of ENoG impact neurologic and otolaryngologic diagnostic workflows and resource allocation in neurodiagnostic facilities.
Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of how CPT code 92516 is defined, typical clinical indications, and the usual care setting for service delivery. The publication also summarizes payer coverage considerations, common billing modifiers associated with the service, and linked clinical taxonomies. Related procedural codes and relevant ICD-10 diagnostic pairings are identified to aid accurate coding and claim submission.
This executive summary prepares clinicians, coding professionals, and policy analysts to understand the clinical role of electroneuronography, the primary payers involved, and the documentation and coding context needed for appropriate use of CPT code 92516 across outpatient and hospital-based neurodiagnostic settings.
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Billing Code Overview
CPT code 92516 describes electroneuronography (ENoG), a noninvasive diagnostic test that uses controlled electrical stimulation to evaluate the function and integrity of the facial nerve when a patient presents with facial nerve impairment. The procedure quantifies nerve response to stimulation to help assess the degree of nerve injury and track recovery over time.
Service type: Diagnostic electrophysiologic testing
Typical site of service: Outpatient clinic or hospital-based neurodiagnostic laboratory, where specialized equipment and trained personnel are available to perform nerve stimulation and record responses.
National Reimbursement Benchmarks
Medicare's mean allowed rate for CPT 92516 sits at $78.30, which is notably lower than BUCA’s commercial mean of $175.90. The gap of $97.60 highlights a substantial differential between the federal program and this representative commercial payer average, signaling that commercial contracts can pay more than double Medicare in many localities.
Dispersion (P75 minus P25) is widest for Blue Cross Blue Shield at $102.80 (P75 $311.60 minus P25 $208.80), indicating large variability in negotiated rates. UnitedHealth Group ($60.00 spread), Cigna ($64.30 spread), and BUCA ($82.50 spread between P75 $216.80 and P25 $134.30) show intermediate dispersion. Aetna is the tightest of the listed commercial payers with a spread of $40.00, reflecting more compressed negotiated outcomes.