Toxic effect of mushrooms eaten as food

This code signifies an adverse systemic reaction resulting from the ingestion of toxic mushrooms that were consumed with the intent of being food. It covers the physiological effects, ranging from gastrointestinal distress to more severe organ damage, caused by the naturally occurring toxins within the fungi. This diagnosis is used when the mushrooms were mistakenly identified as edible or were consumed without knowledge of their toxic properties.

Apply this code when a patient presents with symptoms of poisoning after consuming wild or cultivated mushrooms believed to be safe for consumption. Documentation should clearly state the patient ingested mushrooms and subsequently developed toxic effects, ruling out intentional self-harm or recreational drug use. This code is appropriate for accidental poisonings where the intent was to eat the mushrooms as food.

• Always code the specific manifestation of the toxic effect (e.g., gastroenteritis, hepatic failure) first, followed by this code as an E-code (E865.1 for accidental poisoning by mushrooms).
• Distinguish from intentional poisoning or recreational use, which would utilize different E-codes.
• Ensure documentation specifies "eaten as food" to differentiate from other forms of exposure or ingestion.