| Y28 | Contact with sharp object, undetermined intent | NON-BILLABLE CODE |
| Y28.0 | Contact with sharp glass, undetermined intent | NON-BILLABLE CODE |
| Y28.0XXD | Contact with sharp glass, undetermined intent, subsequent encounter | BILLABLE CODE |
| Y28.0XXS | Contact with sharp glass, undetermined intent, sequela | BILLABLE CODE |
| Y28.1 | Contact with knife, undetermined intent | NON-BILLABLE CODE |
| Y28.1XXA | Contact with knife, undetermined intent, initial encounter | BILLABLE CODE |
| Y28.1XXD | Contact with knife, undetermined intent, subsequent encounter | BILLABLE CODE |
| Y28.1XXS | Contact with knife, undetermined intent, sequela | BILLABLE CODE |
| Y28.2 | Contact with sword or dagger, undetermined intent | NON-BILLABLE CODE |
| Y28.2XXA | Contact with sword or dagger, undetermined intent, initial encounter | BILLABLE CODE |
| Y28.2XXD | Contact with sword or dagger, undetermined intent, subsequent encounter | BILLABLE CODE |
| Y28.2XXS | Contact with sword or dagger, undetermined intent, sequela | BILLABLE CODE |
| Y28.8 | Contact with other sharp object, undetermined intent | NON-BILLABLE CODE |
| Y28.8XXA | Contact with other sharp object, undetermined intent, initial encounter | BILLABLE CODE |
| Y28.8XXD | Contact with other sharp object, undetermined intent, subsequent encounter | BILLABLE CODE |
| Y28.8XXS | Contact with other sharp object, undetermined intent, sequela | BILLABLE CODE |
| Y28.9 | Contact with unspecified sharp object, undetermined intent | NON-BILLABLE CODE |
| Y28.9XXA | Contact with unspecified sharp object, undetermined intent, initial encounter | BILLABLE CODE |
| Y28.9XXD | Contact with unspecified sharp object, undetermined intent, subsequent encounter | BILLABLE CODE |
| Y28.9XXS | Contact with unspecified sharp object, undetermined intent, sequela | BILLABLE CODE |
