ICD-10-CM > S00-T88 > T36-T50 > T40 > T40.2 > T40.2X T40.2X Poisoning by, adverse effect of and underdosing of other opioids Non-Billable/Non-Specific Codes T40.2X1Poisoning by other opioids, accidental (unintentional)T40.2X1A..., initial encounterT40.2X1D..., subsequent encounterT40.2X1S..., sequelaT40.2X2Poisoning by other opioids, intentional self-harmT40.2X2A..., initial encounterT40.2X2D..., subsequent encounterT40.2X2S..., sequelaT40.2X3Poisoning by other opioids, assaultT40.2X3A..., initial encounterT40.2X3D..., subsequent encounterT40.2X3S..., sequelaT40.2X4Poisoning by other opioids, undeterminedT40.2X4A..., initial encounterT40.2X4D..., subsequent encounterT40.2X4S..., sequelaT40.2X5Adverse effect of other opioidsT40.2X5A..., initial encounterT40.2X5D..., subsequent encounterT40.2X5S..., sequelaT40.2X6Underdosing of other opioidsT40.2X6A..., initial encounterT40.2X6D..., subsequent encounterT40.2X6S..., sequela