RAS Message Segments

RAS (Pharmacy/treatment Administration Message, non-perfected) messages include details of a pharmacy/treatment that was placed in the health information system (HIS).

RAS messages will trigger a pharmacy/treatment notification and deliver the relevant information to the appropriate recipient.

Segment	Field	Component	Description	Field Type	Required
MSH	1	1	Field Separator	String	Y
	2	4	Encoding Characters	String	Y
	3	180	Sending Application	String	Y
	4	180	Sending Facility	String	Y
	5	180	Receiving Application	String	Y
	6	180	Receiving Facility	String	N
	7	26	Date/Time of Message	Date/Time (YYYYMMDDTTTT)	Y
	8	40	Security	String	N
	9	7	Message Type	String	Y
	10	20	Message Control Id	String	Y
	11	3	Processing Id	String	N
	12	8	Version Id	String	Y
	13	15	Sequence Number	String	N
	14	180	Continuation Pointer	String	N
	15	2	Accept Acknowledgement Type	String	N
	16	2	Application Acknowledgement Type	String	N
	17	2	Country Code	String	N
	18	6	Character Set	String	N
	19	3	Principal Language of Message	String	N

Segment	Field	Component	Attribute	Description	Field Type	Required
PID	3	1	patient.mrn	Patient ID	Mapped ID	Y
PV1	3	1	patient.bed.room.unit.name	Assigned Patient Location	String	Y
	3	2	patient.bed.room.room_number	Assigned Patient Location	Integer	Y
	3	3	patient.bed.bed_number	Assigned Patient Location	Integer	Y
ORC	2	1	order_code	Entity Identifier	String
	5	1	status	Order Status	String	Y
	7	1	dosage	Quantity	Composite Quantity with Units
	7	2	frequency	Interval	Repeat Interval
	7	3	description	Duration	String
	9	1	order_time	Ordered Time	Date/Time (YYYYMMDDTTTT)	Y
	10	1	provider.npi	ID Number	String
	10	2	provider.last_name	Provider Family Name	FN (Family Name)
	10	3	provider.first_name	Provider Given Name	String