H66.9
ICD-10Non-billable categoryOtitis media, unspecified
Official ICD-10-CM descriptor (FY2026)
Otitis media, unspecified
H66.9 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.
Inclusion terms
- Otitis media NOS
- Acute otitis media NOS
- Chronic otitis media NOS
Use additional code
Report an additional code to identify the associated condition.
- code for any associated perforated tympanic membrane (H72.-)
ICD-10-CM FY2026 defines 4 codes beneath H66.9. See the ICD-10-CM index for what this site publishes.
Related codes in H66
Where this code sits
- Parent code
- H66
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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.