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|