| Charge Explanation Needed | OLI_DENIAL_EXPLANATION | 11 |
| Charge in Excess of Contracted Fee | OLI_DENIAL_EXCESSCHG | 10 |
| Date of Service Provided is Outdated | OLI_DENIAL_OUTDATED | 19 |
| Duplicate Charge | OLI_DENIAL_DUPLICATE | 20 |
| Full Paramed Ordered | OLI_DENIAL_FULLPARA | 18 |
| Full Paramed Provided, Short Form was expected | OLI_DENIAL_SHORTFORM | 22 |
| Incorrect Date | OLI_DENIAL_INCORRECTDATE | 14 |
| Inquiry, Bill Broker | OLI_DENIAL_INFORMAL | 2 |
| Miscellaneous | OLI_DENIAL_MISC | 21 |
| No Application On File | OLI_DENIAL_NOAPP | 1 |
| No Contracted Fee | OLI_DENIAL_NOCONTFEE | 12 |
| Other | OLI_OTHER | 2147483647 |
| Other Insurance Company Exam | OLI_DENIAL_OTHERCARRIER | 9 |
| Requirements Ordered Together | OLI_DENIAL_BUNDLE | 13 |
| Service Cancelled | OLI_DENIAL_CANCELLED | 5 |
| Service Incomplete | OLI_DENIAL_INCOMPLETE | 4 |
| Service Information Needed | OLI_DENIAL_INFONEEDED | 16 |
| Service Not Ordered and Not Received | OLI_DENIAL_NOTORDEREDORRECD | 6 |
| Service Ordered But Not Received | OLI_DENIAL_NOTRECD | 3 |
| Service Previously Paid | OLI_DENIAL_PREVPAID | 15 |
| Service Received but Not Ordered | OLI_DENIAL_RECDNOTORDERED | 7 |
| Unknown | OLI_UNKNOWN | 0 |
| Vendor Unidentified | OLI_DENIAL_UNKNOWNVENDOR | 17 |
| Work Performed By Other Vendor | OLI_DENIAL_OTHERVENDOR | 8 |