Summary & Overview
CPT 92542: Positional Nystagmus Recording (ENG/VNG)
CPT code 92542 represents positional nystagmus testing using electronystagmography (ENG) or infrared videonystagmography (VNG) to record rapid eye movements when a patient changes head position. This diagnostic procedure is an important tool nationally for evaluating vestibular dysfunction, dizziness, and balance disorders, providing objective data that can influence diagnostic pathways and subsequent management.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The analysis addresses coverage patterns and reimbursement benchmarks for these major payers and summarizes clinical and billing contexts relevant to practitioners who perform vestibular testing.
Readers will find a concise overview of what CPT code 92542 covers, typical sites of service where the test is performed, and the clinical significance of positional nystagmus recording. The publication also outlines expected benchmarks and payer coverage considerations, highlights any recent policy updates when available, and places the code in clinical context for audiologists, otolaryngologists, and neurologists. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 92542 documents the use of electronystagmography or infrared videonystagmography electrodes to measure and record rapid eye movements (nystagmus) that occur when a patient changes head position. This test captures objective eye movement responses to positional changes to help evaluate vestibular and balance disorders.
Service Type: Diagnostic vestibular testing (positional nystagmus recording)
Typical Site of Service: Audiology clinic, otolaryngology clinic, neurology clinic, or hospital outpatient diagnostic unit
Clinical & Coding Specifications
Clinical Context
A 54-year-old patient presents to an outpatient neurotology clinic with a 6-week history of episodic vertigo, unsteadiness with head movement, and intermittent nausea. The clinician performs a focused history and physical exam, including bedside ocular motility and vestibular testing, and schedules quantitative positional vestibular testing using videonystagmography/electronystagmography to record eye movements during head position changes. The patient is seated in a dedicated testing room; surface electrodes or an infrared video camera are placed to capture horizontal and vertical eye movements. The technologist guides a series of positional maneuvers (supine roll, Dix–Hallpike, head-hanging, and head turns) while the system records nystagmus velocity and direction. The provider reviews the tracings, documents test findings (direction-fixed or direction-changing nystagmus, latency, duration, fatigability), and integrates results with clinical exam to support diagnoses such as benign paroxysmal positional vertigo or central positional nystagmus. Billing is submitted for 92542 for the objective recording of eye movements during positional testing. Typical sites of service include outpatient specialty clinics (neurotology, otolaryngology), hospital outpatient departments, and ambulatory diagnostic centers.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
25 | Significant, separately identifiable evaluation and management service by the same physician on the day of a procedure |