Poisoning by anticholinesterase agents, self-harm, sequela

This code signifies a long-term consequence or complication arising from a deliberate overdose or self-poisoning with anticholinesterase agents. These agents, often found in pesticides or some medications, disrupt nerve function. The "sequela" aspect indicates that the acute poisoning event has passed, but the patient is now experiencing residual effects.

Apply this code when documenting a patient presenting with chronic neurological, muscular, or other organ system damage directly attributable to a past intentional self-harm event involving anticholinesterase agents. This would be used for follow-up care or management of these lasting complications, not for the initial acute poisoning.

• Always sequence this code after the code(s) identifying the specific sequela(e) being treated.
• Ensure documentation clearly links the current condition to a past intentional anticholinesterase poisoning.
• Do not use this code for acute poisoning; refer to the appropriate acute poisoning codes for initial encounters.