Message Structure
27 segments
R RequiredO Optional Choice
MSH
R1NTE
O*PATIENT
O1PID
R1PD1
O1NTE
O*PATIENT_VISIT
O1PV1
R1PV2
O1INSURANCE
O*IN1
R1IN2
O1IN3
O1GT1
O1AL1
O*ORDER
R*ORC
R1ORDER_DETAIL
O1CHOICEChoice
R1OBR
R1RQD
R1RQ1
R1RXO
R1ODS
R1ODT
R1NTE
O*CTD
O1DG1
O*OBSERVATION
O*OBX
R1NTE
O*FT1
O*CTI
O*BLG
O1Used by Events:O01ORM - Order message (also RDE, RDS, RGV, RAS)