W42 — Exposure to noise
Not billable
Is W42 billable?
No — W42 is a non-billable header code. W42 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 6 billable codes beneath W42.
Billable codes under this header
- W42.0XXAExposure to supersonic waves, initial encounter
- W42.0XXDExposure to supersonic waves, subsequent encounter
- W42.0XXSExposure to supersonic waves, sequela
- W42.9XXAExposure to other noise, initial encounter
- W42.9XXDExposure to other noise, subsequent encounter
- W42.9XXSExposure to other noise, sequela
W42 at a glance
| Code | W42 |
|---|---|
| Description | Exposure to noise |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together — inherited from W20-W49
The conditions below can never be reported together with W42 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
What codes fall under W42? (2)
How long has W42 existed?
W42 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.