ICD-10-CM > S00-T88 > T36-T50 > T43 > T43.5 > T43.50 > T43.505 T43.505 Adverse effect of unspecified antipsychotics and neuroleptics Non-Billable/Non-Specific Codes T43.505A..., initial encounterT43.505D..., subsequent encounterT43.505S..., sequela