T44.0X1 - Poisoning by anticholinesterase agents, accidental (unintentional) T44.0 - Poisoning by, adverse effect of and underdosing of anticholinesterase agents T44.0X - Poisoning by, adverse effect of and underdosing of anticholinesterase agents T44.0X1 - Poisoning by anticholinesterase agents, accidental (unintentional)