H74.321 Partial loss of ear ossicles, right ear

Billable ICD-10-CM code, FY2026.

Applies from H74 Other disorders of middle ear mastoid

Excludes2 (not included here)

• mastoiditis (H70.-)

MS-DRG index

Defines the logic of DRG(s) 154-156 in MDC 03.

Approximate ICD-9-CM (GEMs)

• 385.24 Partial loss or necrosis of ear ossicles (approximate)

Nearby codes

• 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
• H74.32 Partial loss of ear ossicles
• H74.321 Partial loss of ear ossicles, right ear (this code)
• H74.322 Partial loss of ear ossicles, left ear
• H74.323 Partial loss of ear ossicles, bilateral
• H74.329 Partial loss of ear ossicles, unspecified ear
• H74.39 Other acquired abnormalities of ear ossicles
• H74.391 Other acquired abnormalities of right ear ossicles