| T65.91 | Toxic effect of unspecified substance, accidental (unintentional) | NON-BILLABLE CODE |
| T65.91XA | Toxic effect of unspecified substance, accidental (unintentional), initial encounter | BILLABLE CODE |
| T65.91XD | Toxic effect of unspecified substance, accidental (unintentional), subsequent encounter | BILLABLE CODE |
| T65.91XS | Toxic effect of unspecified substance, accidental (unintentional), sequela | BILLABLE CODE |
| T65.92 | Toxic effect of unspecified substance, intentional self-harm | NON-BILLABLE CODE |
| T65.92XA | Toxic effect of unspecified substance, intentional self-harm, initial encounter | BILLABLE CODE |
| T65.92XD | Toxic effect of unspecified substance, intentional self-harm, subsequent encounter | BILLABLE CODE |
| T65.92XS | Toxic effect of unspecified substance, intentional self-harm, sequela | BILLABLE CODE |
| T65.93 | Toxic effect of unspecified substance, assault | NON-BILLABLE CODE |
| T65.93XA | Toxic effect of unspecified substance, assault, initial encounter | BILLABLE CODE |
| T65.93XD | Toxic effect of unspecified substance, assault, subsequent encounter | BILLABLE CODE |
| T65.93XS | Toxic effect of unspecified substance, assault, sequela | BILLABLE CODE |
| T65.94 | Toxic effect of unspecified substance, undetermined | NON-BILLABLE CODE |
| T65.94XA | Toxic effect of unspecified substance, undetermined, initial encounter | BILLABLE CODE |
| T65.94XD | Toxic effect of unspecified substance, undetermined, subsequent encounter | BILLABLE CODE |
| T65.94XS | Toxic effect of unspecified substance, undetermined, sequela | BILLABLE CODE |
