| W21.31 | Struck by shoe cleats | NON-BILLABLE CODE |
| W21.31XA | Struck by shoe cleats, initial encounter | BILLABLE CODE |
| W21.31XD | Struck by shoe cleats, subsequent encounter | BILLABLE CODE |
| W21.31XS | Struck by shoe cleats, sequela | BILLABLE CODE |
| W21.32 | Struck by skate blades | NON-BILLABLE CODE |
| W21.32XA | Struck by skate blades, initial encounter | BILLABLE CODE |
| W21.32XD | Struck by skate blades, subsequent encounter | BILLABLE CODE |
| W21.32XS | Struck by skate blades, sequela | BILLABLE CODE |
| W21.39 | Struck by other sports foot wear | NON-BILLABLE CODE |
| W21.39XA | Struck by other sports foot wear, initial encounter | BILLABLE CODE |
| W21.39XD | Struck by other sports foot wear, subsequent encounter | BILLABLE CODE |
| W21.39XS | Struck by other sports foot wear, sequela | BILLABLE CODE |
