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Multiple events, conditions, or actions may be associated with each CDS rule.  For example, two separate actions defined in a medication allergy rule might be:

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Criteria in CDS Conditions

Each CDS condition (or criterion) can be further subdivided into one or more criterion, each consisting of a "name-value" pair. The criterion name will typically map to a data element in the electronic health record, while the criterion value is compared with the data that populates this element in the patient's health record.

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