ICD-10-CM > S00-T88 > T36-T50 > T43 > T43.0 T43.0 Poisoning by, adverse effect of and underdosing of tricyclic and tetracyclic antidepressants Non-Billable/Non-Specific Codes T43.01Poisoning by, adverse effect of and underdosing of tricyclic antidepressantsT43.011Poisoning 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..., sequelaT43.02Poisoning by, adverse effect of and underdosing of tetracyclic antidepressantsT43.021Poisoning by tetracyclic antidepressants, accidental (unintentional)T43.021A..., initial encounterT43.021D..., subsequent encounterT43.021S..., sequelaT43.022Poisoning by tetracyclic antidepressants, intentional self-harmT43.022A..., initial encounterT43.022D..., subsequent encounterT43.022S..., sequelaT43.023Poisoning by tetracyclic antidepressants, assaultT43.023A..., initial encounterT43.023D..., subsequent encounterT43.023S..., sequelaT43.024Poisoning by tetracyclic antidepressants, undeterminedT43.024A..., initial encounterT43.024D..., subsequent encounterT43.024S..., sequelaT43.025Adverse effect of tetracyclic antidepressantsT43.025A..., initial encounterT43.025D..., subsequent encounterT43.025S..., sequelaT43.026Underdosing of tetracyclic antidepressantsT43.026A..., initial encounterT43.026D..., subsequent encounterT43.026S..., sequela