Toxic effect of strychnine and its salts, self-harm, subs

This code signifies a patient presenting with adverse health effects resulting from the deliberate ingestion or exposure to strychnine or its chemical compounds, with the intent of self-harm. The encounter documented is not the initial treatment for this poisoning but a follow-up visit for ongoing management or complications.

Apply this code for subsequent encounters where a patient is being treated for the sequelae of a self-inflicted strychnine poisoning. This includes follow-up appointments for neurological complications, organ damage, or mental health evaluations related to the initial intentional overdose.

• Ensure documentation clearly states "intentional self-harm" and that the encounter is not the initial treatment.
• Always code with an accompanying mental and behavioral health diagnosis (e.g., F-codes) to fully capture the patient's condition.
• Verify the substance is specifically strychnine or its salts; other toxic effects have different codes.