ICD-10-CM > S00-T88 > T36-T50 > T50 > T50.9 > T50.91 > T50.913 T50.913 Poisoning by multiple unspecified drugs, medicaments and biological substances, assault Non-Billable/Non-Specific Codes T50.913A..., initial encounterT50.913D..., subsequent encounterT50.913S..., sequela