T78: Adverse effects, not elsewhere classified

T78.0: Anaphylactic shock due to adverse food reaction

With an allergy, the immune system overreacts to certain substances. Such substances may be harmless substances in the environment, drugs or certain chemicals, for example.

As a result of the allergic reaction you had severe circulatory problems. You may experience nausea or vomiting in the case of such a reaction as well. You can also become breathless or get a rash on your skin.