H74 Other disorders of middle ear mastoid

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Other disorders of middle ear mastoid is H74 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
H65-H75: Diseases of middle ear and mastoid (H65-H75)
Category H74
48 codes (36 billable)
FY2026 Status
Stable since FY2024
Excludes2
Not included here. These conditions are coded elsewhere but may be coded together if applicable.
  • mastoiditis (H70.-)

Official Coding Guidelines

Chapter 8 reserved for future guideline expansion

8. Chapter 8: Diseases of the Ear and Mastoid Process (H60-H95) Reserved for future guideline expansion

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.8

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Cite This Page

Reference H74 with the canonical source and edition:

H74 — Other disorders of middle ear mastoid. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/H74

Canonical URL: https://icd10codingpro.com/codes/H74

Related Codes

More Specific Codes

H74.0 Tympanosclerosis H74.1 Adhesive middle ear disease H74.2 Discontinuity and dislocation of ear ossicles H74.3 Other acquired abnormalities of ear ossicles H74.4 Polyp of middle ear H74.8 Other specified disorders of middle ear and mastoid H74.9 Unspecified disorder of middle ear and mastoid

All Codes in H74

Every most-specific code under H74 Other disorders of middle ear mastoid (36 codes):

Show the complete H74 code list
H74.01 Tympanosclerosis, right ear H74.02 Tympanosclerosis, left ear H74.03 Tympanosclerosis, bilateral H74.09 Tympanosclerosis, unspecified ear 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 H74.20 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 H74.311 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 H74.321 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 H74.391 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 H74.40 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 H74.8X1 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 H74.90 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
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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