W42.9⚠ Requires 7th Character

Exposure to other noise

⚠ 7th Character Required

The appropriate 7th character is to be added to each code from category W42

This code is not valid for billing without a 7th character. Append one of the following to W42.9:

Ainitial encounterW42.9XXADsubsequent encounterW42.9XXDSsequelaW42.9XXS

Sub-codes of W42.9(3)

W42.9 is a non-billable header. Select a sub-code to bill.

W42.9AExposure to other noise, initial encounter✓ BillableW42.9DExposure to other noise, subsequent encounter✓ BillableW42.9SExposure to other noise, sequela✓ Billable

Inclusion Terms

Also Indexed As(ICD-10-CM Alphabetic Index)

These clinical terms, synonyms, and manifestations all map to W42.9 in the official ICD-10-CM Alphabetic Index.

Exposure (to), noiseExposure (to), waves, soundNoise (causing injury) (pollution)Sound waves (causing injury)

Code Hierarchy

┌20External causes of morbidity (V00-Y99)├W20-W49Exposure to inanimate mechanical forces (W20-W49)├W42Exposure to noise
└W42.9Exposure to other noise

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