H74 – Other disorders of middle ear mastoid
ICD-10-CM 2027 diagnosis code · Diseases of middle ear and mastoid
ICD-10-CM code
H74
- Code
H74(claims format:H74)- Description
- Other disorders of middle ear mastoid
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 8. Diseases of the ear and mastoid process (H60-H95)
- Block
- H65-H75 Diseases of middle ear and mastoid
Billable codes under H74
H74 is a header code and cannot be used on claims. Choose the most specific code:
- H74.0 – TympanosclerosisHeader (more codes below)
- H74.1 – Adhesive middle ear diseaseHeader (more codes below)
- H74.2 – Discontinuity and dislocation of ear ossiclesHeader (more codes below)
- H74.3 – Other acquired abnormalities of ear ossiclesHeader (more codes below)
- H74.4 – Polyp of middle earHeader (more codes below)
- H74.8 – Other specified disorders of middle ear and mastoidHeader (more codes below)
- H74.9 – Unspecified disorder of middle ear and mastoidHeader (more codes below)
Notes for H74
Excludes2 (not included here):
- mastoiditis (H70.-)
Frequently asked questions
What is ICD-10 code H74?
H74 is the ICD-10-CM code for other disorders of middle ear mastoid, in the block H65-H75 (Diseases of middle ear and mastoid).
Is H74 a billable code?
No. H74 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.