Immediate family member
Immediate family member means any of the following: (1) Spouse. (2) Natural or adoptive parent, child, or sibling. (3) Stepparent, stepchild, stepbrother, or stepsister. (4) Father-, mother-, daughter-, son-, brother-, or sister-in-law. (5) Grandparent or grandchild. (6) Spouse of a grandparent or grandchild.