Poisoning by antiallerg/antiemetic, self-harm, sequela

This code signifies a long-term consequence or complication arising from a past intentional self-poisoning event involving antiallergic or antiemetic medications. It indicates that the patient is currently experiencing health issues directly attributable to that prior self-harm.

Apply this code when documenting a patient presenting with chronic organ damage, neurological deficits, or other persistent health problems that are a direct result of a previous self-inflicted overdose of antihistamines, anti-nausea drugs, or similar medications. This code is used after the acute phase of the poisoning has resolved, and the patient is being treated for the lasting effects.

• Always sequence this code after the code(s) for the specific sequela being treated (e.g., chronic kidney disease, neurological disorder).
• Ensure documentation clearly links the current condition to the past intentional self-harm by antiallergic/antiemetic drugs.
• Do not use this code for acute poisoning events; it is exclusively for the late effects.