AllergyIntolerance as defined by the Dutch Health and Care Information models (Dutch: Zorginformatiebouwsteen or ZIB) version 3.2, release 2017. An allergy or intolerance describes a patient’s tendency towards hypersensitivity to a certain substance, so that an unwanted physiological reaction is expected after exposure to the substance, while most people would not exhibit such a reaction to that amount. The observed physiological changes are usually the result of an immunological reaction. The substances can be categorized as follows:

• Medicine
• Medicine category
• Ingredient/addition
• Nutrition
• Environmental factor
• Animal
• Plants
• Chemicals
• Inhaled allergenic