| W56.21 | Bitten by orca | NON-BILLABLE CODE |
| W56.21XA | Bitten by orca, initial encounter | BILLABLE CODE |
| W56.21XD | Bitten by orca, subsequent encounter | BILLABLE CODE |
| W56.21XS | Bitten by orca, sequela | BILLABLE CODE |
| W56.22 | Struck by orca | NON-BILLABLE CODE |
| W56.22XA | Struck by orca, initial encounter | BILLABLE CODE |
| W56.22XD | Struck by orca, subsequent encounter | BILLABLE CODE |
| W56.22XS | Struck by orca, sequela | BILLABLE CODE |
| W56.29 | Other contact with orca | NON-BILLABLE CODE |
| W56.29XA | Other contact with orca, initial encounter | BILLABLE CODE |
| W56.29XD | Other contact with orca, subsequent encounter | BILLABLE CODE |
| W56.29XS | Other contact with orca, sequela | BILLABLE CODE |
