| T88.51 | Hypothermia following anesthesia | NON-BILLABLE CODE |
| T88.51XA | Hypothermia following anesthesia, initial encounter | BILLABLE CODE |
| T88.51XD | Hypothermia following anesthesia, subsequent encounter | BILLABLE CODE |
| T88.51XS | Hypothermia following anesthesia, sequela | BILLABLE CODE |
| T88.52 | Failed moderate sedation during procedure | NON-BILLABLE CODE |
| T88.52XA | Failed moderate sedation during procedure, initial encounter | BILLABLE CODE |
| T88.52XD | Failed moderate sedation during procedure, subsequent encounter | BILLABLE CODE |
| T88.52XS | Failed moderate sedation during procedure, sequela | BILLABLE CODE |
| T88.53 | Unintended awareness under general anesthesia during procedure | NON-BILLABLE CODE |
| T88.53XA | Unintended awareness under general anesthesia during procedure, initial encounter | BILLABLE CODE |
| T88.53XD | Unintended awareness under general anesthesia during procedure, subsequent encounter | BILLABLE CODE |
| T88.53XS | Unintended awareness under general anesthesia during procedure, sequela | BILLABLE CODE |
| T88.59 | Other complications of anesthesia | NON-BILLABLE CODE |
| T88.59XA | Other complications of anesthesia, initial encounter | BILLABLE CODE |
| T88.59XD | Other complications of anesthesia, subsequent encounter | BILLABLE CODE |
| T88.59XS | Other complications of anesthesia, sequela | BILLABLE CODE |
