Poisoning by opium, assault, subsequent encounter

This code signifies a patient presenting for follow-up care or treatment of injuries sustained from an intentional poisoning by opium, where the opium was administered by another person with intent to harm. This indicates the patient is no longer in the acute phase of the poisoning but is receiving ongoing management related to the assault.

Use this code for subsequent encounters such as follow-up appointments for organ damage, neurological sequelae, or psychological trauma resulting from an opium poisoning assault. It is appropriate when the patient is receiving continued care after the initial treatment for the acute poisoning event.

• Ensure documentation clearly states the poisoning was an assault and that this is a subsequent encounter.
• Always code the specific opium derivative if known (e.g., morphine, codeine) when available.
• Do not use for initial treatment of the acute poisoning; a code from the "A" or "D" category would be appropriate for the initial encounter.