Allergy Coding

by Sheila Steele

Anallergy isan abnormal reaction of the human immune system, when it wrongly identifies certain allergens such as pollens, foods, drugs, dust, etc to be harmful foreign substances and produces antibodies against them. When these antibodies are produced in excess, they release histamine and other chemicals in your body, which in turn results in some allergic reaction. Allergy manifests itself most frequently in the respiratory tract or the skin – these manifestations of

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