ICD-10-CM Code W42.9
Exposure to other noise
Non-Billable CodeNon-Billable means the code is not sufficient justification for admission to an acute care hospital when used a principal diagnosis. Use a child code to capture more detail.
7th Character RequiredCode requires 7th Character Extension identifier. This 7th Character usually captures Episode of Care information, such as "Initial Encounter," "Subsquent Encounter," or "Sequela."
ICD Code W42.9 is a non-billable code. To code a diagnosis of this type, you must use specify a 7th character that describes the diagnosis 'exposure to other noise' in more detail. The 7th characters that can be added, and the resulting billable codes, are as follows:
|7th Digit||Billable Code||7th Digit Specifies|
What is 7th Character Extension?For codes less than 6 characters that require a 7th character a placeholder 'X' should be assigned for all characters less than 6. The 7th character must always be the 7th position of a code. E.g. The ICD-10-CM code T67.4 (Heat exhaustion due to salt depletion) requires an Episode of Care identifier. T67.4XXA Initial Encounter or T67.4XXD Subsequent Encounter. More Info
Coding Notes for W42.9 Info for medical coders on how to properly use this ICD-10 code
Inclusion TermsInclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.
- Exposure to sound waves NOS
Coding Advice SNOMET-CT
- Episode of care information needed
- This is an external cause code for use in a secondary position
ICD-10-CM External Cause Index References for 'W42.9 - Exposure to other noise'
The ICD-10-CM External Cause Index links the below-listed medical terms to the ICD code W42.9. Click on any term below to browse the external cause index.