Anaphylactic reaction due to other fish, sequela

This code describes a past or residual adverse immune response, specifically an anaphylactic reaction, that was triggered by consuming fish other than common varieties like cod, salmon, or tuna. It indicates that the patient is experiencing a long-term effect or complication stemming from this prior severe allergic event.

Use this code when documenting a patient's current condition or symptom that is a direct consequence of a previously experienced anaphylactic reaction to an unspecified or less common type of fish. This applies when the acute phase of the anaphylaxis has passed, but the patient continues to exhibit related issues.

• Ensure documentation clearly links the current sequela to a past anaphylactic reaction caused by "other fish."
• Do not use for acute anaphylactic reactions; this code is specifically for sequelae.
• Always code the specific sequela (e.g., asthma, chronic urticaria) first, followed by this code to indicate the cause.