Poisn by oth antieplptc and sed-hypntc drugs, acc, sequela

This code signifies the long-term effects or complications arising from an accidental overdose or poisoning by antiepileptic or sedative-hypnotic medications, excluding barbiturates and benzodiazepines. These sequelae represent conditions that persist after the acute phase of the poisoning has resolved.

Apply this code when documenting chronic neurological deficits, organ damage, or other lasting health problems directly attributable to a past unintentional poisoning by drugs such as gabapentin, pregabalin, zolpidem, or eszopiclone. This is used for follow-up encounters addressing these persistent conditions.

• Always sequence this code after the code(s) for the specific sequela being treated.
• Ensure documentation clearly links the current condition to a past accidental poisoning event.
• Do not use for acute poisoning events; those require codes from the initial encounter or subsequent encounter categories.