H74.9
⚠ Non-billable
Unspecified disorder of middle ear and mastoid
ICD-10-CM · FY2026 · Diseases of the Ear and Mastoid Process
Code
H74.9
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Diseases of the Ear and Mastoid Process
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code H74.9?
ICD-10-CM code H74.9 represents Unspecified disorder of middle ear and mastoid. It is a non-billable header code requiring a more specific subcategory in the Diseases of the Ear and Mastoid Process chapter, effective October 1, 2025 – September 30, 2026.
Is H74.9 billable?
No. H74.9 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is H74.9 in?
H74.9 belongs to the Diseases of the Ear and Mastoid Process chapter (H60–H95) of ICD-10-CM.
Related codes in the H74 category
H74
Other disorders of middle ear mastoid
Non-billable
H74.0
Tympanosclerosis
Non-billable
H74.1
Adhesive middle ear disease
Non-billable
H74.2
Discontinuity and dislocation of ear ossicles
Non-billable
H74.3
Other acquired abnormalities of ear ossicles
Non-billable
H74.4
Polyp of middle ear
Non-billable
H74.8
Other specified disorders of middle ear and mastoid
Non-billable
H74.01
Tympanosclerosis, right ear
Billable
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