ICD-10-CM > S00-T88 > T36-T50 > T43 > T43.9 T43.9 Poisoning by, adverse effect of and underdosing of unspecified psychotropic drug Non-Billable/Non-Specific Codes T43.91Poisoning by unspecified psychotropic drug, accidental (unintentional)T43.91XA..., initial encounterT43.91XD..., subsequent encounterT43.91XS..., sequelaT43.92Poisoning by unspecified psychotropic drug, intentional self-harmT43.92XA..., initial encounterT43.92XD..., subsequent encounterT43.92XS..., sequelaT43.93Poisoning by unspecified psychotropic drug, assaultT43.93XA..., initial encounterT43.93XD..., subsequent encounterT43.93XS..., sequelaT43.94Poisoning by unspecified psychotropic drug, undeterminedT43.94XA..., initial encounterT43.94XD..., subsequent encounterT43.94XS..., sequelaT43.95Adverse effect of unspecified psychotropic drugT43.95XA..., initial encounterT43.95XD..., subsequent encounterT43.95XS..., sequelaT43.96Underdosing of unspecified psychotropic drugT43.96XA..., initial encounterT43.96XD..., subsequent encounterT43.96XS..., sequela