Poisoning by antidiarrheal drugs, accidental, init

This code signifies an accidental or unintentional poisoning specifically due to antidiarrheal medications. It indicates the patient's initial presentation for treatment of the toxic effects of these drugs, rather than a subsequent encounter for follow-up care.

Apply this code when a patient presents to an emergency department or clinic with symptoms of toxicity from an antidiarrheal drug, and the ingestion is determined to be unintentional. This includes situations like accidental overdose, incorrect dosage taken by mistake, or a child ingesting medication not intended for them.

• Ensure the poisoning is explicitly documented as accidental or unintentional; do not use for intentional self-harm.
• Verify this is the initial encounter for this specific poisoning event; subsequent care would use a different encounter character.
• Always code the specific antidiarrheal drug from the T36-T50 chapter if known, as a secondary code.