| T40.1X1A | Poisoning by heroin, accidental (unintentional), initial encounter | BILLABLE CODE |
| T40.1X1D | Poisoning by heroin, accidental (unintentional), subsequent encounter | BILLABLE CODE |
| T40.1X1S | Poisoning by heroin, accidental (unintentional), sequela | BILLABLE CODE |
