Occupational hearing loss
Occupational hearing loss means a diagnosis of occupational hearing loss by a physician or other licensed health care professional, where the employee's audiogram reveals a work-related Standard Threshold Shift (STS) (i.e., at least a 10-decibel change in hearing threshold, relative to the baseline audiogram for that employee) in hearing in one or both ears, and the employee's total hearing level is 25 decibels or more above audiometric zero (averaged at 2000, 3000, and 4000 Hz) in the same ear as the STS.