ICD-10-CM > V00-Y99 > W20-W49 > W40 W40 Explosion of other materials Non-Billable/Non-Specific Type 1 Excludes 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) Codes W40.0Explosion of blasting materialW40.0XXA..., initial encounterW40.0XXD..., subsequent encounterW40.0XXS..., sequelaW40.1Explosion of explosive gasesW40.1XXA..., initial encounterW40.1XXD..., subsequent encounterW40.1XXS..., sequelaW40.8Explosion of other specified explosive materialsW40.8XXA..., initial encounterW40.8XXD..., subsequent encounterW40.8XXS..., sequelaW40.9Explosion of unspecified explosive materialsW40.9XXA..., initial encounterW40.9XXD..., subsequent encounterW40.9XXS..., sequela