Anaphylactic reaction due to unspecified food, sequela

This code signifies a long-term or residual effect stemming from a past anaphylactic reaction caused by an unspecified food allergen. It indicates that the acute phase of the anaphylaxis has resolved, but the patient is still experiencing a consequence directly attributable to that prior event.

Apply this code when documenting a patient presenting with a chronic condition or persistent symptom that is a direct sequela of a previously experienced anaphylactic reaction to food, where the specific food allergen was not identified. This is appropriate for follow-up encounters addressing these lasting effects, not the initial acute reaction.

• Always use in conjunction with a code describing the specific sequela (e.g., asthma, chronic urticaria).
• Ensure documentation clearly links the current condition to a past anaphylactic food reaction.
• This code is for sequelae only; do not use for acute or active anaphylaxis.