Anaphylactic reaction due to peanuts, sequela

This code signifies a long-term or late-developing complication resulting from a past anaphylactic reaction specifically triggered by peanut exposure. It indicates that the acute allergic event has resolved, but the patient is now experiencing a residual effect or condition directly attributable to that prior severe allergic response.

Apply this code when documenting a patient presenting with a chronic condition or sequela that is a direct consequence of a previously experienced anaphylactic reaction to peanuts. This would include scenarios where the initial acute anaphylaxis has passed, but the patient now has ongoing issues, such as chronic asthma exacerbated by the prior event, or persistent organ damage linked to the severe allergic episode.

• Ensure documentation clearly links the current condition as a sequela of a past peanut-induced anaphylaxis.
• Do not use for acute anaphylactic reactions; this code is specifically for residual effects.
• Always code the specific sequela (e.g., asthma, organ damage) first, followed by this code to indicate the etiology.