Poisn by oth drug aff the autonm nervous sys, assault, subs

This code signifies a poisoning event resulting from the intentional administration of a drug that primarily impacts the autonomic nervous system, intended to cause harm to the patient. This specific code is used for follow-up care after the initial treatment of such an assault.

Apply this code for subsequent encounters when a patient is receiving ongoing treatment, monitoring, or rehabilitation following an assault involving an autonomic nervous system-affecting drug. This includes scenarios like follow-up appointments for organ damage, neurological sequelae, or psychological support related to the poisoning.

• Always sequence this code after the appropriate external cause code (e.g., Y09.- for assault by unspecified means).
• Ensure documentation clearly states the poisoning was an assault and that this is not the initial encounter for treatment.
• Specify the type of drug if known and if a more specific code exists for that drug class.