Poisoning by tricyclic antidepressants, accidental, sequela

This code signifies a long-term or residual effect resulting from an accidental overdose or exposure to tricyclic antidepressants. These sequelae can include persistent neurological deficits, cardiac arrhythmias, or other chronic health issues that arose directly from the initial poisoning event. The original poisoning itself is no longer active, but its lasting consequences are being addressed.

Apply this code when documenting the ongoing management of a patient experiencing a chronic condition or permanent injury directly attributable to a past, unintentional tricyclic antidepressant poisoning. This is appropriate when the acute phase of the poisoning has resolved, and the focus of care is on the residual effects.

• Always use this code as a secondary diagnosis, following the code for the specific sequela being treated.
• Ensure documentation clearly links the current condition to the past accidental tricyclic antidepressant poisoning.
• Do not use for acute poisoning events; this code is exclusively for the long-term effects.