| 1 | Unrecognized segment ID | 
| 2 | Unexpected segment | 
| 3 | Required Segment Missing | 
| 4 | Loop Occurs Over Maximum Times | 
| 5 | Segment Exceeds Maximum Use | 
| 6 | Segment Not in Defined Transaction Set | 
| 7 | Segment Not in Proper Sequence | 
| 8 | Segment Has Data Element Errors | 
| 10 | Segment Has Excess Trailing Delimiters | 
| I4 | Implementation "Not Used" Segment Present | 
| I6 | Implementation Dependent Segment Missing | 
| I7 | Implementation Loop Occurs Under Minimum Times | 
| I8 | Implementation Segment Below Minimum Use | 
| I9 | Implementation Dependent "Not Used" Segment Present |