| W35 | Explosion and rupture of boiler |
| W36 | Explosion and rupture of gas cylinder |
| W36.1 | Explosion and rupture of aerosol can |
| W36.2 | Explosion and rupture of air tank |
| W36.3 | 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 |
| 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 |
| W39 | Discharge of firework |
| W40 | Explosion of other materials |
| W40.0 | Explosion of blasting material |
| W40.1 | Explosion of explosive gases |
| W40.8 | Explosion of other specified explosive materials |
| W40.9 | Explosion of unspecified explosive materials |