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• If encounter date matches an existing encounter, import will update matching encounter.
• If no encounter found with matching encounter date, import will create a new encounter.
• If there are multiple encounters for the encounter date, then must have the encounter sequence.

Case 2: No Encounter Date and have Encounter Sequence.

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• If Encounter Sequence matches an existing encounter, import will update matching encounter (including Encounter Date).
• If no encounter found with matching Encounter Sequence, import will create a new encounter.

If an Encounter Sequence is needed for a new encounter (for example existing non-fixed encounters exist for the same encounter date being imported), use a value like -99 (which would not exist in the database) and StudyTRAX will create a valid Encounter Sequence.