Poisoning by anticholinesterase agents, undetermined, init

This code signifies an adverse health effect resulting from exposure to anticholinesterase agents, where the intent of the exposure (accidental, intentional self-harm, assault) cannot be determined. The patient is in the acute phase of treatment for the poisoning.

Apply this code when a patient presents with symptoms of anticholinesterase poisoning (e.g., cholinergic crisis, muscle weakness, respiratory depression) and the medical record does not specify whether the exposure was accidental, intentional, or due to assault. This code is appropriate for the initial encounter for this specific poisoning event.

• Always assign an additional code for the specific anticholinesterase agent if known.
• Ensure documentation clearly states the undetermined intent and that this is the first time the patient is being seen for this poisoning.
• Do not use this code if the intent (accidental, intentional, assault) is documented; instead, choose the appropriate T44.0X1-, T44.0X2-, or T44.0X3- code.