ICD-10-CM > S00-T88 > T36-T50 > T43 > T43.0 > T43.01 T43.01 Poisoning by, adverse effect of and underdosing of tricyclic antidepressants Non-Billable/Non-Specific Codes T43.011Poisoning by tricyclic antidepressants, accidental (unintentional)T43.011A..., initial encounterT43.011D..., subsequent encounterT43.011S..., sequelaT43.012Poisoning by tricyclic antidepressants, intentional self-harmT43.012A..., initial encounterT43.012D..., subsequent encounterT43.012S..., sequelaT43.013Poisoning by tricyclic antidepressants, assaultT43.013A..., initial encounterT43.013D..., subsequent encounterT43.013S..., sequelaT43.014Poisoning by tricyclic antidepressants, undeterminedT43.014A..., initial encounterT43.014D..., subsequent encounterT43.014S..., sequelaT43.015Adverse effect of tricyclic antidepressantsT43.015A..., initial encounterT43.015D..., subsequent encounterT43.015S..., sequelaT43.016Underdosing of tricyclic antidepressantsT43.016A..., initial encounterT43.016D..., subsequent encounterT43.016S..., sequela