ICD-10-CM > S00-T88 > T36-T50 > T48 > T48.4 > T48.4X > T48.4X1 T48.4X1 Poisoning by expectorants, accidental (unintentional) Non-Billable/Non-Specific Applicable To Poisoning by expectorants NOS Codes T48.4X1A..., initial encounterT48.4X1D..., subsequent encounterT48.4X1S..., sequela