Message Header (MSH)

R = required. O = optional YYYYMMDDhhmm are in 24hr format char(x) means maximum x characters

seq	type	opt	Description
3	char(50)	O	PATH: pathology report RAD: imaging/radiology report TRANS: transcription/hospital `reportNull` or all other values: laboratory report
4	char(50)	R	Sending Facility ID
6	char(50)	R	Receiving Facility ID This must be a unique ID for each practice.
7	`YYYYMMDDhhmm`	R	Date/Time Of Message

MSH|^~\&||LVMH||SFMH|20161022154733||||||||

⌘I