| Item # | Length | Source of Standard | Year Implemented | Version Implemented | Year Retired | Version Retired |
|---|---|---|---|---|---|---|
| 1800 | 1 | CoC |
| 0 | Chart requisition |
| 1 | Physician letter |
| 2 | Contact letter |
| 3 | Phone call |
| 4 | Other hospital contact |
| 5 | Other, NOS |
| 8 | Foreign residents (not followed) |
| 9 | Not followed, other cases for which follow-up is not required |