ICD-10-CM · Chapter 19 · S00-T88
T43 Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified
Excludes 2 (not included here)
- appetite depressants (T50.5-)
- barbiturates (T42.3-)
- benzodiazepines (T42.4-)
- drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-)
- methaqualone (T42.6-)
- psychodysleptics [hallucinogens] (T40.7-T40.9-)
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| T43..0 | Poisoning by, adverse effect of and underdosing of tricyclic and tetracyclic antidepressants | No |
| T43..01 | Poisoning by, adverse effect of and underdosing of tricyclic antidepressants | No |
| T43..011 | Poisoning by tricyclic antidepressants, accidental (unintentional) | No |
| T43..012 | Poisoning by tricyclic antidepressants, intentional self-harm | No |
| T43..013 | Poisoning by tricyclic antidepressants, assault | No |
| T43..014 | Poisoning by tricyclic antidepressants, undetermined | No |
| T43..015 | Adverse effect of tricyclic antidepressants | No |
| T43..016 | Underdosing of tricyclic antidepressants | No |
| T43..02 | Poisoning by, adverse effect of and underdosing of tetracyclic antidepressants | No |
| T43..021 | Poisoning by tetracyclic antidepressants, accidental (unintentional) | No |
| T43..022 | Poisoning by tetracyclic antidepressants, intentional self-harm | No |
| T43..023 | Poisoning by tetracyclic antidepressants, assault | No |
| T43..024 | Poisoning by tetracyclic antidepressants, undetermined | No |
| T43..025 | Adverse effect of tetracyclic antidepressants | No |
| T43..026 | Underdosing of tetracyclic antidepressants | No |
| T43..1 | Poisoning by, adverse effect of and underdosing of monoamine-oxidase-inhibitor antidepressants | No |
| T43..1X | Poisoning by, adverse effect of and underdosing of monoamine-oxidase-inhibitor antidepressants | No |
| T43..1X1 | Poisoning by monoamine-oxidase-inhibitor antidepressants, accidental (unintentional) | No |
| T43..1X2 | Poisoning by monoamine-oxidase-inhibitor antidepressants, intentional self-harm | No |
| T43..1X3 | Poisoning by monoamine-oxidase-inhibitor antidepressants, assault | No |
| T43..1X4 | Poisoning by monoamine-oxidase-inhibitor antidepressants, undetermined | No |
| T43..1X5 | Adverse effect of monoamine-oxidase-inhibitor antidepressants | No |
| T43..1X6 | Underdosing of monoamine-oxidase-inhibitor antidepressants | No |
| T43..2 | Poisoning by, adverse effect of and underdosing of other and unspecified antidepressants | No |
| T43..20 | Poisoning by, adverse effect of and underdosing of unspecified antidepressants | No |
| T43..201 | Poisoning by unspecified antidepressants, accidental (unintentional) | No |
| T43..202 | Poisoning by unspecified antidepressants, intentional self-harm | No |
| T43..203 | Poisoning by unspecified antidepressants, assault | No |
| T43..204 | Poisoning by unspecified antidepressants, undetermined | No |
| T43..205 | Adverse effect of unspecified antidepressants | No |
| T43..206 | Underdosing of unspecified antidepressants | No |
| T43..21 | Poisoning by, adverse effect of and underdosing of selective serotonin and norepinephrine reuptake inhibitors | No |
| T43..211 | Poisoning by selective serotonin and norepinephrine reuptake inhibitors, accidental (unintentional) | No |
| T43..212 | Poisoning by selective serotonin and norepinephrine reuptake inhibitors, intentional self-harm | No |
| T43..213 | Poisoning by selective serotonin and norepinephrine reuptake inhibitors, assault | No |
| T43..214 | Poisoning by selective serotonin and norepinephrine reuptake inhibitors, undetermined | No |
| T43..215 | Adverse effect of selective serotonin and norepinephrine reuptake inhibitors | No |
| T43..216 | Underdosing of selective serotonin and norepinephrine reuptake inhibitors | No |
| T43..22 | Poisoning by, adverse effect of and underdosing of selective serotonin reuptake inhibitors | No |
| T43..221 | Poisoning by selective serotonin reuptake inhibitors, accidental (unintentional) | No |
| T43..222 | Poisoning by selective serotonin reuptake inhibitors, intentional self-harm | No |
| T43..223 | Poisoning by selective serotonin reuptake inhibitors, assault | No |
| T43..224 | Poisoning by selective serotonin reuptake inhibitors, undetermined | No |
| T43..225 | Adverse effect of selective serotonin reuptake inhibitors | No |
| T43..226 | Underdosing of selective serotonin reuptake inhibitors | No |
| T43..29 | Poisoning by, adverse effect of and underdosing of other antidepressants | No |
| T43..291 | Poisoning by other antidepressants, accidental (unintentional) | No |
| T43..292 | Poisoning by other antidepressants, intentional self-harm | No |
| T43..293 | Poisoning by other antidepressants, assault | No |
| T43..294 | Poisoning by other antidepressants, undetermined | No |
| T43..295 | Adverse effect of other antidepressants | No |
| T43..296 | Underdosing of other antidepressants | No |
| T43..3 | Poisoning by, adverse effect of and underdosing of phenothiazine antipsychotics and neuroleptics | No |
| T43..3X | Poisoning by, adverse effect of and underdosing of phenothiazine antipsychotics and neuroleptics | No |
| T43..3X1 | Poisoning by phenothiazine antipsychotics and neuroleptics, accidental (unintentional) | No |
| T43..3X2 | Poisoning by phenothiazine antipsychotics and neuroleptics, intentional self-harm | No |
| T43..3X3 | Poisoning by phenothiazine antipsychotics and neuroleptics, assault | No |
| T43..3X4 | Poisoning by phenothiazine antipsychotics and neuroleptics, undetermined | No |
| T43..3X5 | Adverse effect of phenothiazine antipsychotics and neuroleptics | No |
| T43..3X6 | Underdosing of phenothiazine antipsychotics and neuroleptics | No |
| T43..4 | Poisoning by, adverse effect of and underdosing of butyrophenone and thiothixene neuroleptics | No |
| T43..4X | Poisoning by, adverse effect of and underdosing of butyrophenone and thiothixene neuroleptics | No |
| T43..4X1 | Poisoning by butyrophenone and thiothixene neuroleptics, accidental (unintentional) | No |
| T43..4X2 | Poisoning by butyrophenone and thiothixene neuroleptics, intentional self-harm | No |
| T43..4X3 | Poisoning by butyrophenone and thiothixene neuroleptics, assault | No |
| T43..4X4 | Poisoning by butyrophenone and thiothixene neuroleptics, undetermined | No |
| T43..4X5 | Adverse effect of butyrophenone and thiothixene neuroleptics | No |
| T43..4X6 | Underdosing of butyrophenone and thiothixene neuroleptics | No |
| T43..5 | Poisoning by, adverse effect of and underdosing of other and unspecified antipsychotics and neuroleptics | No |
| T43..50 | Poisoning by, adverse effect of and underdosing of unspecified antipsychotics and neuroleptics | No |
| T43..501 | Poisoning by unspecified antipsychotics and neuroleptics, accidental (unintentional) | No |
| T43..502 | Poisoning by unspecified antipsychotics and neuroleptics, intentional self-harm | No |
| T43..503 | Poisoning by unspecified antipsychotics and neuroleptics, assault | No |
| T43..504 | Poisoning by unspecified antipsychotics and neuroleptics, undetermined | No |
| T43..505 | Adverse effect of unspecified antipsychotics and neuroleptics | No |
| T43..506 | Underdosing of unspecified antipsychotics and neuroleptics | No |
| T43..59 | Poisoning by, adverse effect of and underdosing of other antipsychotics and neuroleptics | No |
| T43..591 | Poisoning by other antipsychotics and neuroleptics, accidental (unintentional) | No |
| T43..592 | Poisoning by other antipsychotics and neuroleptics, intentional self-harm | No |
| T43..593 | Poisoning by other antipsychotics and neuroleptics, assault | No |
| T43..594 | Poisoning by other antipsychotics and neuroleptics, undetermined | No |
| T43..595 | Adverse effect of other antipsychotics and neuroleptics | No |
| T43..596 | Underdosing of other antipsychotics and neuroleptics | No |
| T43..6 | Poisoning by, adverse effect of and underdosing of psychostimulants | No |
| T43..60 | Poisoning by, adverse effect of and underdosing of unspecified psychostimulant | No |
| T43..601 | Poisoning by unspecified psychostimulants, accidental (unintentional) | No |
| T43..602 | Poisoning by unspecified psychostimulants, intentional self-harm | No |
| T43..603 | Poisoning by unspecified psychostimulants, assault | No |
| T43..604 | Poisoning by unspecified psychostimulants, undetermined | No |
| T43..605 | Adverse effect of unspecified psychostimulants | No |
| T43..606 | Underdosing of unspecified psychostimulants | No |
| T43..61 | Poisoning by, adverse effect of and underdosing of caffeine | No |
| T43..611 | Poisoning by caffeine, accidental (unintentional) | No |
| T43..612 | Poisoning by caffeine, intentional self-harm | No |
| T43..613 | Poisoning by caffeine, assault | No |
| T43..614 | Poisoning by caffeine, undetermined | No |
| T43..615 | Adverse effect of caffeine | No |
| T43..616 | Underdosing of caffeine | No |
| T43..62 | Poisoning by, adverse effect of and underdosing of amphetamines | No |
| T43..621 | Poisoning by amphetamines, accidental (unintentional) | No |
| T43..622 | Poisoning by amphetamines, intentional self-harm | No |
| T43..623 | Poisoning by amphetamines, assault | No |
| T43..624 | Poisoning by amphetamines, undetermined | No |
| T43..625 | Adverse effect of amphetamines | No |
| T43..626 | Underdosing of amphetamines | No |
| T43..63 | Poisoning by, adverse effect of and underdosing of methylphenidate | No |
| T43..631 | Poisoning by methylphenidate, accidental (unintentional) | No |
| T43..632 | Poisoning by methylphenidate, intentional self-harm | No |
| T43..633 | Poisoning by methylphenidate, assault | No |
| T43..634 | Poisoning by methylphenidate, undetermined | No |
| T43..635 | Adverse effect of methylphenidate | No |
| T43..636 | Underdosing of methylphenidate | No |
| T43..64 | Poisoning by ecstasy | No |
| T43..641 | Poisoning by ecstasy, accidental (unintentional) | No |
| T43..642 | Poisoning by ecstasy, intentional self-harm | No |
| T43..643 | Poisoning by ecstasy, assault | No |
| T43..644 | Poisoning by ecstasy, undetermined | No |
| T43..65 | Poisoning by, adverse effect of and underdosing of methamphetamines | No |
| T43..651 | Poisoning by methamphetamines accidental (unintentional) | No |
| T43..652 | Poisoning by methamphetamines intentional self-harm | No |
| T43..653 | Poisoning by methamphetamines, assault | No |
| T43..654 | Poisoning by methamphetamines, undetermined | No |
| T43..655 | Adverse effect of methamphetamines | No |
| T43..656 | Underdosing of methamphetamines | No |
| T43..69 | Poisoning by, adverse effect of and underdosing of other psychostimulants | No |
| T43..691 | Poisoning by other psychostimulants, accidental (unintentional) | No |
| T43..692 | Poisoning by other psychostimulants, intentional self-harm | No |
| T43..693 | Poisoning by other psychostimulants, assault | No |
| T43..694 | Poisoning by other psychostimulants, undetermined | No |
| T43..695 | Adverse effect of other psychostimulants | No |
| T43..696 | Underdosing of other psychostimulants | No |
| T43..8 | Poisoning by, adverse effect of and underdosing of other psychotropic drugs | No |
| T43..8X | Poisoning by, adverse effect of and underdosing of other psychotropic drugs | No |
| T43..8X1 | Poisoning by other psychotropic drugs, accidental (unintentional) | No |
| T43..8X2 | Poisoning by other psychotropic drugs, intentional self-harm | No |
| T43..8X3 | Poisoning by other psychotropic drugs, assault | No |
| T43..8X4 | Poisoning by other psychotropic drugs, undetermined | No |
| T43..8X5 | Adverse effect of other psychotropic drugs | No |
| T43..8X6 | Underdosing of other psychotropic drugs | No |
| T43..9 | Poisoning by, adverse effect of and underdosing of unspecified psychotropic drug | No |
| T43..91 | Poisoning by unspecified psychotropic drug, accidental (unintentional) | No |
| T43..92 | Poisoning by unspecified psychotropic drug, intentional self-harm | No |
| T43..93 | Poisoning by unspecified psychotropic drug, assault | No |
| T43..94 | Poisoning by unspecified psychotropic drug, undetermined | No |
| T43..95 | Adverse effect of unspecified psychotropic drug | No |
| T43..96 | Underdosing of unspecified psychotropic drug | No |
Last reviewed: September 2026