ICD-10-CM > H60-H95 > H65-H75 > H74 > H74.3 > H74.39 H74.39 Other acquired abnormalities of ear ossicles Non-Billable/Non-Specific Codes H74.391Other acquired abnormalities of right ear ossiclesH74.392Other acquired abnormalities of left ear ossiclesH74.393Other acquired abnormalities of ear ossicles, bilateralH74.399Other acquired abnormalities of ear ossicles, unspecified ear