HL7 Segment : MSH : Message Header

MSH Fields

  Field   Type  Len  Description
  =====   ====  ===  ===========================================
  MSH-1   ST      1  Field Separator
  MSH-2   ST      4  Encoding Characters
  MSH-3   HD    180  Sending Application
  MSH-4   HD    180  Sending Facility
  MSH-5   HD    180  Receiving Application
  MSH-6   HD    180  Receiving Facility
  MSH-7   TS     26  Date/Time of Message
  MSH-8   ST     40  Security
  MSH-9   CM      7  Message Type
  MSH-10  ST     20  Message Control ID
  MSH-11  PT      3  Processing ID
  MSH-12  ID      8  Version ID
  MSH-13  NM     15  Sequence Number
  MSH-14  ST    180  Continuation Pointer
  MSH-15  ID      2  Accept Acknowledgment Type
  MSH-16  ID      2  Application Acknowledgment Type
  MSH-17  ID      2  Country Code
  MSH-18  ID      6  Character Set
  MSH-19  CE     60  Principal Language of Message

Notes

MSH-1, usual value is '|'.

MSH-2, usual value is '^~\&'.