Poisoning by iminostilbenes, intentional self-harm, subs

This code signifies a poisoning event resulting from the intentional self-harm use of iminostilbene-derived medications, such as carbamazepine or oxcarbazepine. The patient is receiving follow-up care for the sequelae or complications of this initial self-inflicted overdose.

Apply this code when a patient presents for ongoing treatment, monitoring, or management of complications (e.g., organ damage, neurological deficits, psychiatric follow-up) stemming from a previous intentional overdose of an iminostilbene. This includes situations where the patient is admitted for rehabilitation or long-term care related to the poisoning.

• Always sequence this code after the primary diagnosis for the specific condition being treated (e.g., acute kidney injury, seizure disorder).
• Ensure documentation clearly states "intentional self-harm" and that the encounter is for subsequent care, not the initial acute treatment.
• Do not use this code for accidental poisonings or poisonings with undetermined intent; different codes apply for those scenarios.