| Y65 | Other misadventures during surgical and medical care | NON-BILLABLE CODE |
| Y65.0 | Mismatched blood in transfusion | BILLABLE CODE |
| Y65.1 | Wrong fluid used in infusion | BILLABLE CODE |
| Y65.2 | Failure in suture or ligature during surgical operation | BILLABLE CODE |
| Y65.3 | Endotracheal tube wrongly placed during anesthetic procedure | BILLABLE CODE |
| Y65.4 | Failure to introduce or to remove other tube or instrument | BILLABLE CODE |
| Y65.5 | Performance of wrong procedure (operation) | NON-BILLABLE CODE |
| Y65.51 | Performance of wrong procedure (operation) on correct patient | BILLABLE CODE |
| Y65.52 | Performance of procedure (operation) on patient not scheduled for surgery | BILLABLE CODE |
| Y65.8 | Other specified misadventures during surgical and medical care | BILLABLE CODE |
