Poisoning by unsp antidepressants, assault, subs encntr

This code indicates a poisoning event involving an unspecified antidepressant, occurring as a result of an assault. The "subsequent encounter" designation means the patient is receiving follow-up care for the poisoning after initial treatment.

Apply this code when documenting ongoing management or complications related to an antidepressant poisoning that was intentionally inflicted by another person, and the specific antidepressant involved is not known. This would be used for visits after the initial emergency room or acute care stay.

• Requires an external cause code (e.g., Y09.-) to fully describe the circumstances of the assault.
• Do not use for initial encounters; instead, use the appropriate initial encounter code (e.g., T43.203A).
• Ensure the documentation clearly states the poisoning was due to an assault and the antidepressant is unspecified.