ICD-10-CM > S00-T88 > T36-T50 > T37 > T37.3 > T37.3X > T37.3X4 T37.3X4 Poisoning by other antiprotozoal drugs, undetermined Non-Billable/Non-Specific Codes T37.3X4A..., initial encounterT37.3X4D..., subsequent encounterT37.3X4S..., sequela