ICD-10-CM > S00-T88 > T36-T50 > T40 > T40.1 > T40.1X > T40.1X3 T40.1X3 Poisoning by heroin, assault Non-Billable/Non-Specific Codes T40.1X3A..., initial encounterT40.1X3D..., subsequent encounterT40.1X3S..., sequela