Acute toxicity – The appearance of symptoms within 6 hours of consumption typically indicates a milder intoxication syndrome but does not eliminate the possibility of death. Intoxication syndromes that occur within 6 hours of consumption may present with one or a combination of the following: gastrointestinal (GI) upset, hallucinations, central nervous system depression and excitation, cholinergic excess, or disulfiram-like reactions (headache, flushing, diaphoresis, nausea/vomiting, tachycardia, palpitations, chest pain, dyspnea). Prognosis is typically good. These patients usually recover within a day.
Delayed toxicity – Syndromes that begin after 6 hours or persist for longer than a day may present with one or a combination of the following: liver toxicity and GI upset (with or without seizures), renal failure, and rhabdomyolysis. Rarely, erythromelalgia, encephalopathy, immune-mediated hemolytic anemia, or allergic bronchoalveolitis may occur.
T62.0X4A – Toxic effect of ingested mushrooms, undetermined, initial encounter
86505009 – Toxic effect from eating mushrooms