Succeed Boston colleagues created this amazing Restorative Toolkit for Re-Entry, which includes a guide to the following four steps (each on one page):
1) Before a student leaves school;
2) Before a student returns to school;
3) The day a student returns to school;
4) Following up after a student returns to school.
This re-entry toolkit can be used any time a student is absent for a significant reason. I love how the Succeed Boston folks define a significant absence - not by length - but as an absence "due to a loss, illness, a restorative alternative to suspension, or any other significant life event."