ICD-10-CM > S00-T88 > T36-T50 > T40 > T40.1 > T40.1X > T40.1X2 T40.1X2 Poisoning by heroin, intentional self-harm Non-Billable/Non-Specific Codes T40.1X2A..., initial encounterT40.1X2D..., subsequent encounterT40.1X2S..., sequela