IEPD Version: 1.0; Creation Date: 2009-04; NIEM Version: 2.0

IEPD Version: 1.1; Creation Date: 2009-04; NIEM Version: 2.0
	- schema changes based on an updated APPA Institutional Discharge Summary IEPD.

IEPD Version: 1.2; Creation Date: 2009-09; NIEM Version: 2.0
	- Added fault elements to the acknowledgement message, thereby changing it to a Response Message
	- Updates to artifacts based on the change to the Response (Acknowledgement) message.