ICD-10-CM category
H74: Other disorders of middle ear mastoid
Codes under H74 (Other disorders of middle ear mastoid). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| H74.0 | Tympanosclerosis | — |
| H74.0 | Tympanosclerosis | — |
| H74.01 | Tympanosclerosis, right ear | ✓ |
| H74.01 | Tympanosclerosis, right ear | ✓ |
| H74.1 | Adhesive middle ear disease | — |
| H74.1 | Adhesive middle ear disease | — |
| H74.02 | Tympanosclerosis, left ear | ✓ |
| H74.02 | Tympanosclerosis, left ear | ✓ |
| H74.2 | Discontinuity and dislocation of ear ossicles | — |
| H74.2 | Discontinuity and dislocation of ear ossicles | — |
| H74.03 | Tympanosclerosis, bilateral | ✓ |
| H74.03 | Tympanosclerosis, bilateral | ✓ |
| H74.3 | Other acquired abnormalities of ear ossicles | — |
| H74.3 | Other acquired abnormalities of ear ossicles | — |
| H74.4 | Polyp of middle ear | — |
| H74.4 | Polyp of middle ear | — |
| H74.8 | Other specified disorders of middle ear and mastoid | — |
| H74.8 | Other specified disorders of middle ear and mastoid | — |
| H74.8X | 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 | ✓ |
| H74.8X1 | Other specified disorders of right middle ear and mastoid | ✓ |
| H74.8X2 | Other specified disorders of left 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 | ✓ |
| H74.8X3 | Other specified disorders of middle ear and mastoid, bilateral | ✓ |
| H74.8X9 | Other specified disorders of middle ear and mastoid, unspecified ear | ✓ |
| H74.8X9 | Other specified disorders of middle ear and mastoid, unspecified ear | ✓ |
| H74.09 | Tympanosclerosis, unspecified ear | ✓ |
| H74.09 | Tympanosclerosis, unspecified ear | ✓ |
| H74.9 | Unspecified disorder of middle ear and mastoid | — |
| H74.9 | Unspecified disorder of middle ear and mastoid | — |
| H74.11 | Adhesive right middle ear disease | ✓ |
| H74.11 | Adhesive right middle ear disease | ✓ |
| H74.12 | Adhesive left middle ear disease | ✓ |
| H74.12 | Adhesive left middle ear disease | ✓ |
| H74.13 | Adhesive middle ear disease, bilateral | ✓ |
| H74.13 | Adhesive middle ear disease, bilateral | ✓ |
| H74.19 | Adhesive middle ear disease, unspecified ear | ✓ |
| H74.19 | Adhesive middle ear disease, unspecified ear | ✓ |
| H74.20 | Discontinuity and dislocation of ear ossicles, unspecified ear | ✓ |
| H74.20 | Discontinuity and dislocation of ear ossicles, unspecified ear | ✓ |
| H74.21 | Discontinuity and dislocation of right ear ossicles | ✓ |
| H74.21 | Discontinuity and dislocation of right ear ossicles | ✓ |
| H74.22 | Discontinuity and dislocation of left ear ossicles | ✓ |
| H74.22 | Discontinuity and dislocation of left ear ossicles | ✓ |
| H74.23 | Discontinuity and dislocation of ear ossicles, bilateral | ✓ |
| H74.23 | Discontinuity and dislocation of ear ossicles, bilateral | ✓ |
| H74.31 | Ankylosis of ear ossicles | — |
| H74.31 | Ankylosis of ear ossicles | — |
| H74.32 | Partial loss of ear ossicles | — |
| H74.32 | Partial loss of ear ossicles | — |
| H74.39 | Other acquired abnormalities of ear ossicles | — |
| H74.39 | Other acquired abnormalities of ear ossicles | — |
| H74.40 | Polyp of middle ear, unspecified ear | ✓ |
| H74.40 | Polyp of middle ear, unspecified ear | ✓ |
| H74.41 | Polyp of right middle ear | ✓ |
| H74.41 | Polyp of right middle ear | ✓ |
| H74.42 | Polyp of left middle ear | ✓ |
| H74.42 | Polyp of left middle ear | ✓ |
| H74.43 | Polyp of middle ear, bilateral | ✓ |
| H74.43 | Polyp of middle ear, bilateral | ✓ |
| H74.90 | Unspecified disorder of middle ear and mastoid, unspecified ear | ✓ |
| H74.90 | Unspecified disorder of middle ear and mastoid, unspecified ear | ✓ |
| H74.91 | Unspecified disorder of right middle ear and mastoid | ✓ |
| H74.91 | Unspecified disorder of right middle ear and mastoid | ✓ |
| H74.92 | Unspecified disorder of left middle ear and mastoid | ✓ |
| H74.92 | Unspecified disorder of left middle ear and mastoid | ✓ |
| H74.93 | Unspecified disorder of middle ear and mastoid, bilateral | ✓ |
| H74.93 | Unspecified disorder of middle ear and mastoid, bilateral | ✓ |
| H74.311 | Ankylosis of ear ossicles, right ear | ✓ |
| H74.311 | Ankylosis of ear ossicles, right ear | ✓ |
| H74.312 | Ankylosis of ear ossicles, left ear | ✓ |
| H74.312 | Ankylosis of ear ossicles, left ear | ✓ |
| H74.313 | Ankylosis of ear ossicles, bilateral | ✓ |
| H74.313 | Ankylosis of ear ossicles, bilateral | ✓ |
| H74.319 | Ankylosis of ear ossicles, unspecified ear | ✓ |
| H74.319 | Ankylosis of ear ossicles, unspecified ear | ✓ |
| H74.321 | Partial loss of ear ossicles, right ear | ✓ |
| H74.321 | Partial loss of ear ossicles, right ear | ✓ |
| H74.322 | Partial loss of ear ossicles, left ear | ✓ |
| H74.322 | Partial loss of ear ossicles, left ear | ✓ |
| H74.323 | Partial loss of ear ossicles, bilateral | ✓ |
| H74.323 | Partial loss of ear ossicles, bilateral | ✓ |
| H74.329 | Partial loss of ear ossicles, unspecified ear | ✓ |
| H74.329 | Partial loss of ear ossicles, unspecified ear | ✓ |
| H74.391 | Other acquired abnormalities of right ear ossicles | ✓ |
| H74.391 | Other acquired abnormalities of right ear ossicles | ✓ |
| H74.392 | Other acquired abnormalities of left ear ossicles | ✓ |
| H74.392 | Other acquired abnormalities of left ear ossicles | ✓ |
| H74.393 | Other acquired abnormalities of ear ossicles, bilateral | ✓ |
| H74.393 | Other acquired abnormalities of ear ossicles, bilateral | ✓ |
| H74.399 | Other acquired abnormalities of ear ossicles, unspecified ear | ✓ |
| H74.399 | Other acquired abnormalities of ear ossicles, unspecified ear | ✓ |
Frequently asked questions
What is ICD-10-CM code H74?
H74 is an ICD-10-CM category covering Other disorders of middle ear mastoid. It contains 94 more specific diagnosis codes, 72 of which are billable.
Is H74 a billable code?
No — H74 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example H74.0 — Tympanosclerosis). 72 of the 94 codes under H74 are billable.
What codes fall under H74?
H74 includes H74.0, H74.0, H74.01, H74.01, H74.1, plus 89 more. See the full list with descriptions and billable status above.
More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees
Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
Code the diagnosis right
Join providers across the country delivering modern virtual care with CareNiva. Free to start, ready in minutes.
100% Satisfaction Guaranteed — try it risk-free