ICD-10-CM > S00-T88 > T36-T50 > T48 > T48.3 > T48.3X > T48.3X1 T48.3X1 Poisoning by antitussives, accidental (unintentional) Non-Billable/Non-Specific Applicable To Poisoning by antitussives NOS Codes T48.3X1A..., initial encounterT48.3X1D..., subsequent encounterT48.3X1S..., sequela