ICD-10-CM > S00-T88 > T36-T50 > T40 > T40.2 > T40.2X > T40.2X5 T40.2X5 Adverse effect of other opioids Non-Billable/Non-Specific Codes T40.2X5A..., initial encounterT40.2X5D..., subsequent encounterT40.2X5S..., sequela