H74.9
Header — not billableUnspecified disorder of middle ear and mastoid
The ICD-10 code for unspecified disorder of middle ear and mastoid is H74.9.
H74.9 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 4 more specific codes below.
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.
- •This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- 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