H74
ICD-10Non-billable categoryOther disorders of middle ear mastoid
Official ICD-10-CM descriptor (FY2026)
Other disorders of middle ear mastoid
H74 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Excludes2
Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.
- mastoiditis (H70.-)
More specific codes under H74
- H74.0Tympanosclerosiscategory
- H74.1Adhesive middle ear diseasecategory
- H74.2Discontinuity and dislocation of ear ossiclescategory
- H74.3Other acquired abnormalities of ear ossiclescategory
- H74.4Polyp of middle earcategory
- H74.8Other specified disorders of middle ear and mastoidcategory
- H74.9Unspecified disorder of middle ear and mastoidcategory
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.