| Item # | Length | Source of Standard | Year Implemented | Version Implemented | Year Retired | Version Retired |
|---|---|---|---|---|---|---|
| 1,790 | 1 | CoC |
Records the source from which the latest follow-up information was obtained.
For registries performing follow-up, this field helps evaluate the success rates of various methods of follow-up. It also can be used to report to institutions the source of follow-up information that is sent to them. When there is a conflict in follow-up information, knowing the source can help resolve the inconsistency.
Codes
| 0 | Reported hospitalization |
| 1 | Readmission |
| 2 | Physician |
| 3 | Patient |
| 4 | Department of Motor Vehicles |
| 5 | Medicare/Medicaid file |
| 7 | Death certificate |
| 8 | Other |
| 9 | Unknown, not stated in patient record |