In simple words: This code indicates a repeat severe allergic reaction to a type of fish that isn't shellfish. It's used when someone has had a similar allergic reaction to that fish in the past.

Anaphylactic reaction due to other fish, subsequent encounter. This code describes a severe, potentially life-threatening allergic reaction occurring after a second or subsequent exposure to other fish (excluding shellfish).

Example 1: A patient who has a known allergy to cod presents to the emergency department with difficulty breathing, hives, and swelling after consuming a meal containing cod. They have a documented history of a previous anaphylactic reaction to cod., A patient with a history of anaphylaxis to tuna experiences dizziness, itching, and facial swelling after eating a fish sandwich. They confirm the fish was tuna. They were previously diagnosed with an allergy to tuna., A patient experiences severe gastrointestinal distress, vomiting, and a drop in blood pressure after consuming swordfish. They have a documented history of a previous anaphylactic reaction to another type of fish (not shellfish).

Documentation should include details of the reaction, including symptoms (e.g., hives, swelling, difficulty breathing, low blood pressure), the type of fish consumed, and evidence of a previous anaphylactic reaction to other fish.

** This code was deleted on 2021-01-01. For accurate coding after this date, consider codes related to anaphylaxis and the specific type of fish if documented. As of December 10, 2024, consult the iFrameAI product for the most accurate and up-to-date coding information.