H74
Header — not billableOther disorders of middle ear mastoid
The ICD-10 code for other disorders of middle ear mastoid is H74.
H74 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 7 more specific codes below.
Clinical notes
Excludes2 (not included here)
An Excludes2 note means the excluded condition is not part of this one, but a patient can have both at the same time — in that case both codes may be reported together.
- mastoiditis (H70.-)
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under H74
- H74.0Tympanosclerosisnon-billable header
- H74.1Adhesive middle ear diseasenon-billable header
- H74.2Discontinuity and dislocation of ear ossiclesnon-billable header
- H74.3Other acquired abnormalities of ear ossiclesnon-billable header
- H74.4Polyp of middle earnon-billable header
- H74.8Other specified disorders of middle ear and mastoidnon-billable header
- H74.9Unspecified disorder of middle ear and mastoidnon-billable header
Related codes in this category
- H65Nonsuppurative otitis medianon-billable header
- H66Suppurative and unspecified otitis medianon-billable header
- H67Otitis media in diseases classified elsewherenon-billable header
- H68Eustachian salpingitis and obstructionnon-billable header
- H69Other and unspecified disorders of Eustachian tubenon-billable header
- H70Mastoiditis and related conditionsnon-billable header
- H71Cholesteatoma of middle earnon-billable header
- H72Perforation of tympanic membranenon-billable header
- H73Other disorders of tympanic membranenon-billable header
- H75Other disorders of middle ear and mastoid in diseases classified elsewherenon-billable header
- H74Other disorders of middle ear mastoidnon-billable header