W45 Foreign body or object entering through skin

foreign body or object embedded in skin
nail embedded in skin

Excludes2: contact with hand tools (nonpowered) (powered) (W27-W29)
contact with other sharp object(s) (W26.-)
contact with sharp glass (W25.-)
struck by objects (W20-W22)

7th character: The appropriate 7th character is to be added to each code from category W45
7th character definitions: initial encounter
subsequent encounter
sequela