Poisoning by other opioids, assault, subsequent encounter

This code signifies a patient presenting for follow-up care related to an intentional overdose or adverse reaction to an opioid other than heroin, methadone, or other synthetic narcotics, where the poisoning was inflicted by another person. The patient is receiving ongoing treatment or monitoring for the effects of this assault.

This code is appropriate for documenting subsequent encounters for patients who were poisoned by another opioid in an assaultive manner. Examples include follow-up appointments for organ damage, neurological sequelae, or psychological counseling stemming from the initial poisoning event. It should be used when the patient is no longer in the acute phase of treatment.

• Ensure documentation clearly specifies "assault" as the intent and that it is a "subsequent encounter."
• Always sequence this code after the primary diagnosis describing the specific manifestation of the poisoning (e.g., respiratory depression, coma).
• Verify the specific opioid involved is not heroin, methadone, or another synthetic narcotic, as those have distinct codes.