W31.3A✓ Billable
Contact with prime movers, initial encounter
Code Hierarchy
┌20External causes of morbidity (V00-Y99)├W20-W49Exposure to inanimate mechanical forces (W20-W49)├W31Contact with other and unspecified machinery
└W31.3AContact with prime movers, initial encounter
Not sure between two codes?
⇄ Compare W31.3A with another code →