W40.1A✓ Billable
Explosion of explosive gases, initial encounter
Code Hierarchy
┌20External causes of morbidity (V00-Y99)├W20-W49Exposure to inanimate mechanical forces (W20-W49)├W40Explosion of other materials
└W40.1AExplosion of explosive gases, initial encounter
Not sure between two codes?
⇄ Compare W40.1A with another code →