H74.31 - Ankylosis of ear ossicles H74.3 - Other acquired abnormalities of ear ossicles H74.31 - Ankylosis of ear ossicles
H74.311 - Ankylosis of ear ossicles, right ear H74.312 - Ankylosis of ear ossicles, left ear H74.313 - Ankylosis of ear ossicles, bilateral H74.319 - Ankylosis of ear ossicles, unspecified ear