| Codes | 
| 
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| 
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| —————————————————————————————————————————————— | 
| Code | 
 | |||
| Syntax identifier | ||||
| Syntax version number | ||||
| Partner identification code qualifier | ||||
| Service segment tag, coded | ||||
| Recipient's reference/password qualifier | ||||
| Processing priority code | ||||
| Acknowledgement request | ||||
| Test indicator | ||||
| Controlling agency | ||||
| Message version number | ||||
| * | Message release number | |||
| Message type identifier | ||||
| First/last sequence message transfer indication | ||||
| Section identification | ||||
| Action, coded | ||||
| Syntax error, coded | ||||
| 
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