All ICD10 Codes

W42

Non-Billable
ChapterV00–Y99
Rankcategory
Official Description

Exposure to noise

Use a more specific code (2 billable)
W42.0Exposure to supersonic wavesW42.9Exposure to other noise
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 20: External Causes of Morbidity (V00-Y99).

W20-W49 Parent Instructions

Excludes1(Not coded here. Use a different code.)
  • assault (X92-Y09)
  • contact or collision with animals or persons (W50-W64)
  • exposure to inanimate mechanical forces involving military or war operations (Y36.-, Y37.-)
  • intentional self-harm (X71-X83)

Clinical Hierarchy

BillableHas subcodes
CH20External causes of morbidity (V00-Y99)
W20-W49Exposure to inanimate mechanical forces (W20-W49)
W42Exposure to noiseNot billable
W42.0Exposure to supersonic wavesBillable
W42.9Exposure to other noiseBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to W42:

blockW20-W49
Exposure to inanimate mechanical forces (W20-W49)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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