Poisoning by other narcotics, assault, sequela

This code signifies a long-term health consequence or complication resulting from an intentional poisoning by a narcotic substance other than opium, heroin, or other specified opioids. The poisoning event itself was an act of assault, meaning it was inflicted by another person with malicious intent. The sequela could be any lasting physical or mental health issue directly attributable to the past poisoning.

Use this code when documenting a current condition or symptom that is a direct and lasting result of a previous assault by poisoning with a narcotic not otherwise specified. This applies to follow-up encounters for chronic effects, such as organ damage, neurological deficits, or persistent psychological trauma, that are clearly linked to the original assaultive poisoning.

• Always sequence this code after the code(s) for the specific sequela being treated.
• Ensure documentation clearly links the current condition to a past assaultive poisoning by an unspecified narcotic.
• The "S" in the 7th character indicates sequela; do not use for acute poisoning events.