H74.9
ICD-10Non-billable categoryUnspecified disorder of middle ear and mastoid
Official ICD-10-CM descriptor (FY2026)
Unspecified disorder of middle ear and mastoid
H74.9 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.
ICD-10-CM FY2026 defines 4 codes beneath H74.9. See the ICD-10-CM index for what this site publishes.
Related codes in H74
Where this code sits
- Parent code
- H74
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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.