Oth fish poisoning, accidental (unintentional), init encntr

This code signifies an acute, unintentional adverse reaction to consuming fish, excluding ciguatera or scombroid poisoning. The patient presents with symptoms such as nausea, vomiting, diarrhea, or neurological disturbances directly attributable to toxins present in the ingested fish. This is the first time the patient is being treated for this specific poisoning episode.

Apply this code when a patient presents with symptoms of food poisoning specifically linked to fish consumption, and the documentation clearly states the poisoning was accidental and not due to ciguatera or scombroid toxins. This code is appropriate for the initial visit or encounter for this particular poisoning event.

• Ensure documentation specifies "accidental" or "unintentional" ingestion and rules out ciguatera or scombroid poisoning.
• Confirm this is the initial encounter for the poisoning episode; subsequent encounters would use a different seventh character.
• Look for specific symptoms of poisoning and a clear link to fish consumption in the patient's history.