ICD-10-CM > S00-T88 > T36-T50 > T42 > T42.3 > T42.3X > T42.3X5 T42.3X5 Adverse effect of barbiturates Non-Billable/Non-Specific Codes T42.3X5A..., initial encounterT42.3X5D..., subsequent encounterT42.3X5S..., sequela