ICD-10-CM > S00-T88 > T36-T50 > T43 > T43.5 > T43.59 > T43.591 T43.591 Poisoning by other antipsychotics and neuroleptics, accidental (unintentional) Non-Billable/Non-Specific Applicable To Poisoning by other antipsychotics and neuroleptics NOS Codes T43.591A..., initial encounterT43.591D..., subsequent encounterT43.591S..., sequela