Poisoning by unspecified narcotics, assault, sequela

This code signifies a long-term health problem resulting from an intentional act of poisoning with an unspecified narcotic substance. The "assault" designation indicates the poisoning was inflicted by another person with malicious intent. The "sequela" character means this code is used for the residual effects or complications of the initial poisoning, not the acute event itself.

Apply this code when documenting chronic conditions, organ damage, or persistent neurological deficits directly attributable to a past narcotic poisoning that was determined to be an assault. This would be used in follow-up care for patients experiencing ongoing health issues years after the initial event. It is not for the initial emergency room visit or acute hospitalization.

• Always ensure documentation clearly links the current condition to a past narcotic poisoning by assault.
• This code requires a seventh character 'S' for sequela, indicating the long-term effects.
• Do not use this code for accidental or self-inflicted poisonings; those have different intent characters.