A patient may be pre-admitted for a variety of reasons; e.g. prior to surgery so that they will be able to receive tests administered in the lab. The data may be entered into the surgery scheduling system and passed to the ADT system.
ADT ADT Message Chapter
Message Structure
6 segments
R RequiredO Optional Choice
MSH
R1EVN
R1PID
R1NK1
R1PV1
R1DG1
O1Used by Events:A05Pre-admit a Patient