PatientClassHistory

A history of changes to the Encounter data element’s field 7 (Patient Class).

	Field	Type	Length	Description
1	Record Type ID	String		Indicates the record type. For this record it will always be “PatientClassHistory”.
2	ID	ID		Surrogate Key. For the relationship between a classHistory and an encounter.
3	Patient ID	REF		Surrogate key to a patientCorresponds to a (Patient line in the same file set)’s ID value
4	Encounter ID	REF		Surrogate Key to an EncounterCorresponds to a (Encounter line in the same file set)’s ID value
5	Start Date	Date
6	End Date	Date
7	Patient Class	Term		For Example - E, I, O, P – see Patient class table above
8	Patient Identifier	String	128	Part of Natural Key Identifier. Typically, the source’s or practice’s key Identifier for a patient *Natural Key for existing patient
9	Patient Record Authority ID	REF		Surrogate Key to a Record Authority.
10	Encounter Identifier	String	128	Part of Natural Key Identifier. Typically, the source’s or practice’s key Identifier for an encounter *Natural Key for existing encounter
11	Inserted Audit Data	Audit		Audit data for when the record was inserted/created
12	Last Modified Audit Data	Audit		Audit data for when the record was last modified