Poisoning by other antidepressants, undetermined, sequela

This code signifies a long-term health condition or complication arising from a past poisoning event involving an antidepressant not specifically classified elsewhere. The original intent of the poisoning (e.g., accidental, intentional self-harm, assault) could not be determined at the time of the acute event. The sequela represents the residual effects or chronic problems directly attributable to that prior exposure.

Apply this code when documenting a chronic medical condition, organ damage, or persistent neurological deficit that is a direct consequence of an undetermined poisoning by an "other" antidepressant. This is used after the acute phase of the poisoning has resolved, and the patient is presenting for treatment of the lasting effects. Examples include chronic cardiac arrhythmias, persistent neurological dysfunction, or kidney damage from such an event.

• Always sequence this code after the code for the specific sequela being treated.
• Ensure documentation clearly links the current condition to a past undetermined poisoning by an antidepressant.
• Do not use this code for acute poisoning events; it is exclusively for residual effects.