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The ALLERGY table contains all allergies that are associated with the patient.

Field Name Field Description
ALLERGY_ID The unique primary identifier of the allergy table
ENCOUNTER_ID The foreign key linking the record to the encounter table
ALLERGY_DT_TM The date and time for which this allergy becomes effective. Normally, this will be the date and time the allergy is added, but could be a past or future date and time.
ALLERGY Text description of the allergen