ICD-10-CM > S00-T88 > T36-T50 > T43 > T43.4 > T43.4X > T43.4X4 T43.4X4 Poisoning by butyrophenone and thiothixene neuroleptics, undetermined Non-Billable/Non-Specific Codes T43.4X4A..., initial encounterT43.4X4D..., subsequent encounterT43.4X4S..., sequela