| Directory | Messages | Segments | Composites | Data elements | Codes | Meaning of the change indicators |
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| Identification of document/message by number, status, source and/or language. |
| 覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧 |
| 010 | 1004 | Document identifier | C | 1 | an..35 | ||
| 020 | 1373 | Document status code | C | 1 | an..3 | ||
| 030 | 1366 | Document source description | C | 1 | an..70 | ||
| 040 | 3453 | Language name code | C | 1 | an..3 | ||
| 050 | 1056 | Version identifier | C | 1 | an..9 | ||
| 060 | 1060 | Revision identifier | C | 1 | an..6 | ||
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