Poisoning by unsp agents aff the GI sys, self-harm, init

This code signifies a patient presenting with adverse effects from ingesting an unknown substance, with the primary impact observed in the gastrointestinal system. The ingestion was deliberately self-inflicted with the intent to cause harm.

This code is appropriate for initial encounters where a patient has intentionally ingested an unidentified substance, leading to symptoms such as nausea, vomiting, abdominal pain, or diarrhea, and the specific agent is not yet known. It is used when the patient explicitly states or clinical evidence strongly suggests self-harm.

• Ensure documentation clearly states "intentional self-harm" and "unspecified agent."
• Only use for the initial encounter for treatment of the poisoning.
• Do not use if the specific substance ingested is identified; a more specific T-code should then be selected.