Toxic effect of seafood, accidental (unintentional), subs

This code signifies an adverse health event resulting from the unintentional ingestion of seafood other than ciguatera- or scombroid-containing fish. The patient is receiving follow-up care for symptoms or complications stemming from this toxic exposure.

Apply this code when a patient presents for ongoing management of symptoms like nausea, vomiting, diarrhea, neurological disturbances, or allergic reactions, previously diagnosed as being caused by accidental consumption of contaminated or toxic seafood (e.g., shellfish, pufferfish, or other exotic fish not specifically coded elsewhere). This would be used for visits after the initial treatment of the acute poisoning.

• Ensure documentation clearly states the encounter is subsequent and the poisoning was accidental.
• Verify the specific type of seafood involved is not ciguatera or scombroid, as those have dedicated codes.
• Always code the specific symptoms or manifestations of the toxic effect in addition to this code.