Poisoning by tetracyclic antidepressants, assault, sequela

This code signifies a long-term health problem or condition resulting from an intentional overdose or exposure to tetracyclic antidepressants, where the poisoning was inflicted by another person. It indicates that the acute phase of the poisoning has passed, and the patient is now experiencing residual effects.

Apply this code when documenting chronic neurological, cardiac, or other organ damage, or persistent psychological sequelae directly attributable to a past tetracyclic antidepressant poisoning that was determined to be an assault. This would be used in follow-up encounters after the initial acute treatment for the poisoning.

• Always assign an additional code(s) to specify the nature of the sequela (e.g., specific organ damage, neurological deficits).
• Ensure documentation clearly links the current condition to the past assaultive tetracyclic antidepressant poisoning.
• This "S" seventh character indicates sequela and should only be used for complications or conditions arising as a direct result of the initial poisoning event, after the acute phase has resolved.