ICD-10-CM > S00-T88 > T36-T50 > T48 > T48.4 > T48.4X > T48.4X2 T48.4X2 Poisoning by expectorants, intentional self-harm Non-Billable/Non-Specific Codes T48.4X2A..., initial encounterT48.4X2D..., subsequent encounterT48.4X2S..., sequela