H90.A21
ICD-10-CMSensorineural hearing loss, unilateral, right ear, with restricted hearing on the contralateral side
This code signifies sensorineural hearing loss affecting only the right ear, where the left ear also experiences some degree of hearing impairment, though not necessarily sensorineural. It indicates a unilateral deficit with a contralateral restriction, distinguishing it from profound deafness or normal hearing in the non-affected ear.
This code is appropriate when audiological testing confirms sensorineural hearing loss exclusively in the right ear, and documentation also indicates a measurable hearing deficit in the left ear. It should be used when the physician explicitly states "unilateral right-sided sensorineural hearing loss with restricted hearing on the contralateral side" or similar phrasing supported by audiogram results.
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