| Code | Description |
| 001 | Value Cannot Be Null |
| 002 | Code Invalid |
| 003 | Length Invalid |
| 004 | DOB Invalid Date |
| 005 | Not Responsible Agency |
| 006 | Date Invalid |
| 007 | Y or N only |
| 008 | IPTX Days over 180 |
| 009 | Hour Format HH:MM |
| 010 | Serial ID Invalid |
| 011 | Phone Invalid (nnn) nnn-nnnn |
| 012 | Money Format $$$,$$$.$$ |
| 013 | Cannot Exceed 20 |
| 014 | Missing LOF |
| 015 | SSN format nnn-nn-nnnn |
| 016 | Batch Number Already Posted |
| 017 | Invalid Provider Code |
| 018 | Rpt Unk on Fld 1 only |
| 019 | Number of minutes must be between 0 and 1440. |
| 020 | Date may not be in the future. |
| 021 | Date may be max 30 days in the future |
| 023 | RSN ID already deleted |
| 024 | DOS Out of Diagnosis Code Date Range |
| 025 | DOS Out of CPT Code Date Range |
| 026 | CPT Does not correspond to Provider Modality |
| 027 | Invalid Modifers per CPT |
| 900 | No Z or Y in impk2 or impk3 |
| 901 | Numeric range 0 to 100 |
| 902 | Numeric range 1 to 5 |
| 903 | Numeric range 1 to 35 |
| 904 | Numeric range 1 to 6 |
| 905 | Numeric range 1 to 40 |
| 999 | RSN ID does not exist |
