W42.0Header code — not billable
Exposure to supersonic waves
- Chapter
- 20. External causes of morbidity
- Category
- W42
- Effective date
- October 1, 2026
Related codes in category W42
W42Exposure to noiseW42.0XXAExposure to supersonic waves, initial encounterYesW42.0XXDExposure to supersonic waves, subsequent encounterYesW42.0XXSExposure to supersonic waves, sequelaYesW42.9Exposure to other noiseW42.9XXAExposure to other noise, initial encounterYesW42.9XXDExposure to other noise, subsequent encounterYesW42.9XXSExposure to other noise, sequelaYes
Frequently asked questions
What is ICD-10 code W42.0?
W42.0 is an ICD-10-CM diagnosis code for Exposure to supersonic waves.
Is W42.0 a billable code?
No. W42.0 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is W42.0 in?
W42.0 falls under Chapter 20: External causes of morbidity.
When did W42.0 become effective?
W42.0 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to W42.0?
W42.0 belongs to category W42, which includes 8 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.