Poisoning by other specified agents primarily affecting the gastrointestinal system

This code signifies a toxic reaction or adverse effect from ingesting or exposure to a substance that primarily manifests with symptoms related to the digestive tract. This includes substances like certain food toxins, contaminated food, or specific chemicals that predominantly cause gastrointestinal distress. The poisoning is not accidental and is due to an agent other than those specifically classified elsewhere.

Use this code when documentation clearly indicates poisoning by a specified agent (e.g., specific plant toxins, certain chemical compounds) where the predominant clinical presentation involves symptoms such as nausea, vomiting, diarrhea, abdominal pain, or gastrointestinal bleeding. The medical record must specify the agent and confirm its primary impact on the GI system.

• Always sequence this code as a secondary diagnosis following the manifestation code(s) for the specific GI symptoms (e.g., acute gastroenteritis, abdominal pain).
• Do not use for accidental poisoning; refer to E-codes for external causes of poisoning.
• Ensure the documentation specifies the "other specified agent" to justify its use over more general poisoning codes.