| Substance | Poisoning, Accidental (unintentional) | Poisoning, Intentional self-harm | Poisoning, Assault | Poisoning, Undetermined | Adverse effect | Underdosing |
|---|---|---|---|---|---|---|
| Antidepressant | T43.201 | T43.202 | T43.203 | T43.204 | T43.205 | T43.206 |
| monoamine oxidase inhibitor | T43.1X1 | T43.1X2 | T43.1X3 | T43.1X4 | T43.1X5 | T43.1X6 |
| selective serotonin norepinephrine reuptake inhibitor | T43.211 | T43.212 | T43.213 | T43.214 | T43.215 | T43.216 |
| selective serotonin reuptake inhibitor | T43.221 | T43.222 | T43.223 | T43.224 | T43.225 | T43.226 |
| specified NEC | T43.291 | T43.292 | T43.293 | T43.294 | T43.295 | T43.296 |
| tetracyclic | T43.021 | T43.022 | T43.023 | T43.024 | T43.025 | T43.026 |
| triazolopyridine | T43.211 | T43.212 | T43.213 | T43.214 | T43.215 | T43.216 |
| tricyclic | T43.011 | T43.012 | T43.013 | T43.014 | T43.015 | T43.016 |