|  H74 |  | Other disorders of middle ear mastoid   | 
	
		|  |  | 
	
		| Excludes2 | mastoiditis (H70.-) 
 |  | 
|  |  | 
	
		|  H74.0 |  | Tympanosclerosis |  |  |  | 
	
		|  H74.01 |  | Tympanosclerosis, right ear |  |  |  |  | 
	
		|  H74.02 |  | Tympanosclerosis, left ear |  |  |  |  | 
	
		|  H74.03 |  | Tympanosclerosis, bilateral |  |  |  |  | 
	
		|  H74.09 |  | Tympanosclerosis, unspecified ear |  |  | 
|  |  | 
	
		|  H74.1 |  | Adhesive middle ear disease |  
		|  |  | 
| Adhesive otitis |  
		| Excludes1 | glue ear (H65.3-) 
 |  |  |  |  | 
	
		|  H74.11 |  | Adhesive right middle ear disease |  |  |  |  | 
	
		|  H74.12 |  | Adhesive left middle ear disease |  |  |  |  | 
	
		|  H74.13 |  | Adhesive middle ear disease, bilateral |  |  |  |  | 
	
		|  H74.19 |  | Adhesive middle ear disease, unspecified ear |  |  | 
|  |  | 
	
		|  H74.2 |  | Discontinuity and dislocation of ear ossicles |  |  |  | 
	
		|  H74.20 |  | Discontinuity and dislocation of ear ossicles, unspecified ear |  |  |  |  | 
	
		|  H74.21 |  | Discontinuity and dislocation of right ear ossicles |  |  |  |  | 
	
		|  H74.22 |  | Discontinuity and dislocation of left ear ossicles |  |  |  |  | 
	
		|  H74.23 |  | Discontinuity and dislocation of ear ossicles, bilateral |  |  | 
|  |  | 
	
		|  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 |  |  |  |  |  | 
	
		|  H74.32 |  | Partial loss of ear ossicles |  |  |  | 
	
		|  H74.321 |  | Partial loss of ear ossicles, right ear |  |  |  |  | 
	
		|  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 |  |  |  |  | 
	
		|  H74.392 |  | Other acquired abnormalities of left ear ossicles |  |  |  |  | 
	
		|  H74.393 |  | Other acquired abnormalities of ear ossicles, bilateral |  |  |  |  | 
	
		|  H74.399 |  | Other acquired abnormalities of ear ossicles, unspecified ear |  |  |  | 
|  |  | 
	
		|  H74.4 |  | Polyp of middle ear |  |  |  | 
	
		|  H74.40 |  | Polyp of middle ear, unspecified ear |  |  |  |  | 
	
		|  H74.41 |  | Polyp of right middle ear |  |  |  |  | 
	
		|  H74.42 |  | Polyp of left middle ear |  |  |  |  | 
	
		|  H74.43 |  | Polyp of middle ear, bilateral |  |  | 
|  |  | 
	
		|  H74.8 |  | Other specified disorders of middle ear and mastoid |  |  |  | 
	
		|  H74.8X |  | Other specified disorders of middle ear and mastoid |  |  |  | 
	
		|  H74.8X1 |  | Other specified disorders of right middle ear and mastoid |  |  |  |  | 
	
		|  H74.8X2 |  | Other specified disorders of left middle ear and mastoid |  |  |  |  | 
	
		|  H74.8X3 |  | Other specified disorders of middle ear and mastoid, bilateral |  |  |  |  | 
	
		|  H74.8X9 |  | Other specified disorders of middle ear and mastoid, unspecified ear |  |  |  | 
|  |  | 
	
		|  H74.9 |  | Unspecified disorder of middle ear and mastoid |  |  |  | 
	
		|  H74.90 |  | Unspecified disorder of middle ear and mastoid, unspecified ear |  |  |  |  | 
	
		|  H74.91 |  | Unspecified disorder of right middle ear and mastoid |  |  |  |  | 
	
		|  H74.92 |  | Unspecified disorder of left middle ear and mastoid |  |  |  |  | 
	
		|  H74.93 |  | Unspecified disorder of middle ear and mastoid, bilateral |  |  |