ICD-10-CM > S00-T88 > T36-T50 > T43 > T43.3 > T43.3X > T43.3X1 T43.3X1 Poisoning by phenothiazine antipsychotics and neuroleptics, accidental (unintentional) Non-Billable/Non-Specific Applicable To Poisoning by phenothiazine antipsychotics and neuroleptics NOS Codes T43.3X1A..., initial encounterT43.3X1D..., subsequent encounterT43.3X1S..., sequela