| Y04.0 | Assault by unarmed brawl or fight | NON-BILLABLE CODE |
| Y04.0XXA | Assault by unarmed brawl or fight, initial encounter | BILLABLE CODE |
| Y04.0XXD | Assault by unarmed brawl or fight, subsequent encounter | BILLABLE CODE |
| Y04.0XXS | Assault by unarmed brawl or fight, sequela | BILLABLE CODE |
| Y04.1 | Assault by human bite | NON-BILLABLE CODE |
| Y04.1XXA | Assault by human bite, initial encounter | BILLABLE CODE |
| Y04.1XXD | Assault by human bite, subsequent encounter | BILLABLE CODE |
| Y04.1XXS | Assault by human bite, sequela | BILLABLE CODE |
| Y04.2 | Assault by strike against or bumped into by another person | NON-BILLABLE CODE |
| Y04.2XXA | Assault by strike against or bumped into by another person, initial encounter | BILLABLE CODE |
| Y04.2XXD | Assault by strike against or bumped into by another person, subsequent encounter | BILLABLE CODE |
| Y04.2XXS | Assault by strike against or bumped into by another person, sequela | BILLABLE CODE |
| Y04.8 | Assault by other bodily force | NON-BILLABLE CODE |
| Y04.8XXA | Assault by other bodily force, initial encounter | BILLABLE CODE |
| Y04.8XXD | Assault by other bodily force, subsequent encounter | BILLABLE CODE |
| Y04.8XXS | Assault by other bodily force, sequela | BILLABLE CODE |
