| Data element specification | 0052 |
| Directory | Messages | Segments | Composites | Data elements | Codes | Meaning of the change indicators |
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| Version number of a message type. Notes: 1. If UNG/UNE is used, shall be identical in UNG and UNE. The representation of 0052 was specified as n..3 in version 1 of ISO 9735. |
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