D18A

BEGINNING OF MESSAGE

To indicate the type and function of a message and to transmit the identifying number.

Segment structure

C002       DOCUMENT/MESSAGE NAME                              C
   1001    Document name code                                 C   an1..3
   1131    Code list identification code                      C   an1..17
   3055    Code list responsible agency code                  C   an1..3
   1000    Document name                                      C   an1..35
C106       DOCUMENT/MESSAGE IDENTIFICATION                    C
   1004    Document identifier                                C   an1..70
   1056    Version identifier                                 C   an1..9
   1060    Revision identifier                                C   an1..6
1225       MESSAGE FUNCTION CODE                              C   an1..3
4343       RESPONSE TYPE CODE                                 C   an1..3
1373       DOCUMENT STATUS CODE                               C   an1..3
3453       LANGUAGE NAME CODE                                 C   an1..3