ICD-10-CM > S00-T88 > T36-T50 > T40 > T40.6 > T40.60 > T40.603 T40.603 Poisoning by unspecified narcotics, assault Non-Billable/Non-Specific Codes T40.603A..., initial encounterT40.603D..., subsequent encounterT40.603S..., sequela