T78: Adverse effects, not elsewhere classified
T78.2: Anaphylactic shock, unspecified
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.
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If you see an ICD diagnosis code (e.g., on a medical report), be aware that doctors may also include additional indicators to express diagnostic certainty. Only a healthcare professional can interpret these codes accurately in the context of your individual case.
For a complete understanding of your condition and what the diagnosis means for you, please speak directly with your doctor.