ICD-10-CM > S00-T88 > T36-T50 > T40 > T40.6 > T40.69 T40.69 Poisoning by, adverse effect of and underdosing of other narcotics Non-Billable/Non-Specific Codes T40.691Poisoning by other narcotics, accidental (unintentional)T40.691A..., initial encounterT40.691D..., subsequent encounterT40.691S..., sequelaT40.692Poisoning by other narcotics, intentional self-harmT40.692A..., initial encounterT40.692D..., subsequent encounterT40.692S..., sequelaT40.693Poisoning by other narcotics, assaultT40.693A..., initial encounterT40.693D..., subsequent encounterT40.693S..., sequelaT40.694Poisoning by other narcotics, undeterminedT40.694A..., initial encounterT40.694D..., subsequent encounterT40.694S..., sequelaT40.695Adverse effect of other narcoticsT40.695A..., initial encounterT40.695D..., subsequent encounterT40.695S..., sequelaT40.696Underdosing of other narcoticsT40.696A..., initial encounterT40.696D..., subsequent encounterT40.696S..., sequela