ICD-10-CM > S00-T88 > T36-T50 > T48 > T48.3 > T48.3X > T48.3X4 T48.3X4 Poisoning by antitussives, undetermined Non-Billable/Non-Specific Codes T48.3X4A..., initial encounterT48.3X4D..., subsequent encounterT48.3X4S..., sequela