ICD-10-CM > S00-T88 > T36-T50 > T44 > T44.3 > T44.3X > T44.3X4 T44.3X4 Poisoning by other parasympatholytics [anticholinergics and antimuscarinics] and spasmolytics, undetermined Non-Billable/Non-Specific Codes T44.3X4A..., initial encounterT44.3X4D..., subsequent encounterT44.3X4S..., sequela