W42.9
ICD-10Non-billable categoryExposure to other noise
Official ICD-10-CM descriptor (FY2026)
Exposure to other noise
W42.9 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
- Exposure to sound waves NOS
Related codes in W42
Where this code sits
- Parent code
- W42
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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.