Current
W40 — Explosion of other materials
Part of Chapter 20: External causes of morbidity , block Exposure to inanimate mechanical forces (W20-W49) .
Official Notes
Excludes1
assault by explosive material ( X96 )
Excludes1
explosion involving legal intervention ( Y35.1- )
Excludes1
intentional self-harm by explosive material ( X75 )
7th Character
The appropriate 7th character is to be added to each code from category W40
7th Character
A - initial encounter
7th Character
D - subsequent encounter
7th Character
S - sequela
Child Codes
FY 2027 effective October 1, 2026 · CDC NCHS and CMS