| Tag | Field Name | XML Name | Data Type | Union Datatype | Description | Added | Depr. | Enums from tag |
|---|---|---|---|---|---|---|---|---|
| 491 | CardIssNum | @CardIssNum | String |
The issue number of the payment card as specified on the card being used for payment. This is only applicable to certain types of card. | Added FIX.4.3 |
|