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3 Explosion and rupture of pressurized-gas tank

W36.8 Explosion and rupture of other gas cylinder
W36.9 Explosion and rupture of unspecified gas cylinder

W37 Explosion and rupture of pressurized tire, pipe or hose

The appropriate 7th character is to be added to each code from category W37
A initial encounter
D subsequent encounter
S sequela
W37.0 Explosion of bicycle tire
W37.8 Explosion and rupture of other pressurized tire, pipe or hose

W38 Explosion and rupture of other specified pressurized devices

The appropriate 7th character is to be added to code W38
A initial encounter
D subsequent encounter
S sequela

W39 Discharge of firework

The appropriate 7th character is to be added to code W39
A initial encounter
D subsequent encounter
S sequela

W40 Explosion of other materials

Excludes1: assault by explosive material (X96)
explosion involving legal intervention (Y35.1-)
explosion involving military or war operations (Y36.0-, Y36.2-)
intentional self-harm by explosive material (X75)
The appropriate 7th character is to be added to each code from category W40
A initial encounter
D subsequent encounter
S sequela
W40.0 Explosion of blasting material
Explosion of blasting cap
Explosion of detonator
Explosion of dynamite
Explosion of explosive (any) used in blasting operations
W40.1 Explosion of explosive gases
Explosion of acetylene
Explosion of butane
Explosion of coal gas
Explosion in mine NOS
Explosion of explosive gas
Explosion of fire damp
Explosion of gasoline fumes
Explosion