ICD-10-CM > S00-T88 > T36-T50 > T43 > T43.4 > T43.4X > T43.4X1 T43.4X1 Poisoning by butyrophenone and thiothixene neuroleptics, accidental (unintentional) Non-Billable/Non-Specific Applicable To Poisoning by butyrophenone and thiothixene neuroleptics NOS Codes T43.4X1A..., initial encounterT43.4X1D..., subsequent encounterT43.4X1S..., sequela