| # | Name | Location | Type | Details | Index | Description |
|---|---|---|---|---|---|---|
| .01 | date/time entered(+) | 0;1 | DATE-TIME | B | ||
| .02 | batch | 0;2 | BOOLEAN | 0:NO 1:YES | ||
| .03 | message type | 0;3 | FREE TEXT | |||
| .04 | event | 0;4 | FREE TEXT | |||
| .05 | hl7 version(+) | 0;5 | FREE TEXT | |||
| .2 | hl7 encoding characters(+) | 0;20 | FREE TEXT | |||
| 1 | segments (not batched) | 1;0 | WORD-PROCESSING | |||
| 2 | batched messages | 2;0 | MULTIPLE | 777.02 | ||
| 3 | bts | 3;1 | FREE TEXT | For incoming batch messages only, the BTS segment is stored in this field, which is a separate node. |