Poisoning by oth antidepressants, undetermined, subs encntr

This code signifies a poisoning event involving an unspecified antidepressant, where the intent (accidental, intentional self-harm, assault) cannot be determined. It is used for encounters following the initial treatment of the poisoning, indicating ongoing care or complications.

Apply this code when a patient presents for follow-up care, monitoring of complications, or management of residual effects stemming from an antidepressant poisoning where the intent remains unknown. This would include scenarios like a patient returning for liver function tests after an overdose of an antidepressant not specifically listed elsewhere, and the circumstances surrounding the ingestion are unclear.

• Ensure the encounter is not the initial treatment for the poisoning; this code is for subsequent encounters only.
• Verify that the specific antidepressant involved is not classifiable to a more precise code within T43.2.
• Confirm that the intent of the poisoning is truly undetermined; if intent is known, a different 7th character (A, S) should be used.