| Y63 | Failure in dosage during surgical and medical care | NON-BILLABLE CODE |
| Y63.1 | Incorrect dilution of fluid used during infusion | BILLABLE CODE |
| Y63.2 | Overdose of radiation given during therapy | BILLABLE CODE |
| Y63.3 | Inadvertent exposure of patient to radiation during medical care | BILLABLE CODE |
| Y63.4 | Failure in dosage in electroshock or insulin-shock therapy | BILLABLE CODE |
| Y63.5 | Inappropriate temperature in local application and packing | BILLABLE CODE |
| Y63.6 | Underdosing and nonadministration of necessary drug, medicament or biological substance | BILLABLE CODE |
| Y63.8 | Failure in dosage during other surgical and medical care | BILLABLE CODE |
| Y63.9 | Failure in dosage during unspecified surgical and medical care | BILLABLE CODE |
