Other anaphylactic reaction

This code represents a severe, systemic hypersensitivity reaction that is rapid in onset and may cause death, but does not fit the criteria for anaphylactic shock. It involves multiple body systems, often including skin, respiratory, gastrointestinal, and cardiovascular manifestations. The reaction is typically triggered by exposure to an allergen.

Use this code for documented cases of anaphylaxis where the patient does not present with signs of shock (e.g., hypotension, organ hypoperfusion). This includes reactions to food, insect stings, medications, or other environmental allergens. Documentation should clearly describe the systemic nature of the reaction without explicit mention of shock.

• Differentiate carefully between anaphylactic reaction and anaphylactic shock; the latter has a distinct code.
• Always code the specific allergen (e.g., adverse effect of drug, food allergy) as an additional diagnosis.
• Avoid using this code for localized allergic reactions or mild systemic reactions that do not meet the criteria for anaphylaxis.