W42.9XXS is the authoritative medical code for Exposure to other noise, sequela. This classification is used in medical billing and clinical recording to specify the clinical criteria for exposure to other noise, sequela (ICD-10-CM W42.9XXS), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Exposure to other noise, sequela is a billable ICD-10-CM diagnosis code W42.9S. Inclusion terms: Exposure to sound waves NOS. Excludes1 (not coded here): 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. 7th character: The appropriate 7th character is to be added to each code from category W42.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for W42.9XXS in the official ICD-10-CM tabular list.
Inclusion Terms
Alternative terms the tabular list files under this code.
- Exposure to sound waves NOS
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- 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
Frequently Asked Questions (FAQ) & Clinical Guidance
Does W42.9XXS require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category W42.
What can't be coded together with W42.9XXS?
Per Excludes1 instructions, W42.9XXS must not be reported with: 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).
What conditions are included under W42.9XXS?
Exposure to other noise, sequela includes: Exposure to sound waves NOS.
Codes in This Family (8)
Official ICD-10-CM classifications in the same code family as W42.9XXS, with their registry titles.
- W42 — Exposure to noise
- W42.0 — Exposure to supersonic waves
- W42.0XXA — Exposure to supersonic waves, initial encounter
- W42.0XXD — Exposure to supersonic waves, subsequent encounter
- W42.0XXS — Exposure to supersonic waves, sequela
- W42.9 — Exposure to other noise
- W42.9XXA — Exposure to other noise, initial encounter
- W42.9XXD — Exposure to other noise, subsequent encounter
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code W44.9XXS
Unspecified foreign body entering into or through a natural orifice, sequela