H74.31
Non-Billable
ChapterH60–H95
Ranksubcategory
Official Description
Ankylosis of ear ossicles
Metadata & Insights
- •2026 ICD-10-CM Edition - Effective October 1, 2025.
- •Non-billable category (requires more specific sub-code).
- •Chapter 8: Diseases of the Ear and Mastoid Process (H60-H95).
General instructions are available for the parent sections:
Clinical Hierarchy
CH8Diseases of the ear and mastoid process (H60-H95)
H65-H75Diseases of middle ear and mastoid (H65-H75)
H74Other disorders of middle ear mastoid
H74.3Other acquired abnormalities of ear ossicles
H74.31Ankylosis of ear ossicles
H74.311Ankylosis of ear ossicles, right ear
H74.312Ankylosis of ear ossicles, left ear
H74.313Ankylosis of ear ossicles, bilateral
H74.319Ankylosis of ear ossicles, unspecified ear
Applicable Ancestor Context
The following parent sections contain instructions or notes that apply to H74.31:
Alphabetic Index Mentions
These are Diagnosis Index lookup paths that route to H74.31. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.
1 raw paths
Ankylosis (fibrous) (osseous) (joint)1 unique routes
MS-DRG Classification
No direct MS-DRG triggers identified.
Cross Reference
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