Message Structure
16 segments
R RequiredO Optional Choice
MSH
R1NTE
O*PATIENT
O1PID
R1NTE
O*PV1
O1ORDER
R*ORC
R1ORDER_DETAIL
O1CHOICEChoice
R1OBR
R1RQD
R1RQ1
R1RXO
R1ODS
R1ODT
R1NTE
O*OBX
O*NTE
R*BLG
O1Used by Events:O01Order Message