Poisn by oth antieplptc and sed-hypntc drugs, undet, init

This code signifies a patient presenting with adverse effects from an overdose or improper use of antiepileptic or sedative-hypnotic medications, where the intent (accidental, intentional self-harm, assault) cannot be determined. The patient is in the acute phase of treatment for this poisoning.

Apply this code when documentation indicates a poisoning by a drug from the specified class, and the provider explicitly states or implies that the intent of the poisoning is unknown or undetermined. This is appropriate for the initial encounter where the patient is actively being treated for the poisoning.

• Ensure documentation clearly states "undetermined" intent for the poisoning.
• Do not use this code if the intent (accidental, intentional, assault) is known or suspected; use the appropriate intent-specific code.
• Always sequence this code first, followed by codes for any associated manifestations of the poisoning.