ICD-10-CM > H60-H95 > H90-H94 > H90 > H90.A > H90.A1 H90.A1 Conductive hearing loss, unilateral, with restricted hearing on the contralateral side Non-Billable/Non-Specific Codes H90.A11Conductive hearing loss, unilateral, right ear with restricted hearing on the contralateral sideH90.A12Conductive hearing loss, unilateral, left ear with restricted hearing on the contralateral side