| ICD-10 Code | Description |
| T43.011A | Poisoning by tricyclic antidepressants, accidental (unintentional), initial encounter |
| T43.011D | Poisoning by tricyclic antidepressants, accidental (unintentional), subsequent encounter |
| T43.011S | Poisoning by tricyclic antidepressants, accidental (unintentional), sequela |
| T43.012A | Poisoning by tricyclic antidepressants, intentional self-harm, initial encounter |
| T43.012D | Poisoning by tricyclic antidepressants, intentional self-harm, subsequent encounter |
| T43.012S | Poisoning by tricyclic antidepressants, intentional self-harm, sequela |
| T43.013A | Poisoning by tricyclic antidepressants, assault, initial encounter |
| T43.013D | Poisoning by tricyclic antidepressants, assault, subsequent encounter |
| T43.013S | Poisoning by tricyclic antidepressants, assault, sequela |
| T43.014A | Poisoning by tricyclic antidepressants, undetermined, initial encounter |
| T43.014D | Poisoning by tricyclic antidepressants, undetermined, subsequent encounter |
| T43.014S | Poisoning by tricyclic antidepressants, undetermined, sequela |
| T43.015A | Adverse effect of tricyclic antidepressants, initial encounter |
| T43.015D | Adverse effect of tricyclic antidepressants, subsequent encounter |
| T43.015S | Adverse effect of tricyclic antidepressants, sequela |
| T43.016A | Underdosing of tricyclic antidepressants, initial encounter |
| T43.016D | Underdosing of tricyclic antidepressants, subsequent encounter |
| T43.016S | Underdosing of tricyclic antidepressants, sequela |
