Poisoning by hydantoin derivatives, self-harm, sequela

This code signifies a long-term consequence or complication arising from a previous intentional self-harm event involving hydantoin derivatives. It indicates that the patient is experiencing ongoing health issues directly attributable to the past poisoning, rather than the acute poisoning itself. These sequelae can manifest in various organ systems depending on the specific drug and severity of the initial overdose.

Use this code when documenting a patient presenting with chronic conditions or persistent damage that are a direct result of a past intentional self-poisoning with a hydantoin derivative. This would apply to follow-up encounters where the acute phase of the poisoning has resolved, but the patient continues to experience related medical problems. Examples include neurological deficits, organ damage, or other long-term health issues stemming from the original event.

• Always ensure documentation clearly links the current condition as a sequela of the past intentional poisoning.
• This code is for the sequela of the poisoning, not the acute poisoning itself.
• Do not use this code if the patient is still in the acute phase of the poisoning; instead, use an acute poisoning code.