CPT code 92558 denotes transient evoked otoacoustic emissions (TEOAE) testing — an objective hearing-screening procedure that delivers low-intensity sounds into the ear and measures reflected sound to detect cochlear dysfunction. It is widely used for newborn and infant screening because it requires no behavioral cooperation and can rapidly identify infants at risk for hearing loss, supporting early intervention and developmental follow-up. Nationally, this code is central to newborn hearing screening programs and pediatric audiology services.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will gain a concise clinical and billing overview of CPT code 92558, understand typical sites of service and clinical context, and find guidance on what benchmark and policy topics to review for payer coverage, reimbursement practice, and coding compliance. The publication outlines common service delivery settings (nursery, NICU, outpatient audiology), explains why the test matters for early detection, and flags areas where policy updates or payer-specific coverage rules commonly appear. Data not provided in the input (such as specific payer rates, ICD-10 pairings, and taxonomy mappings) is noted as not available.