Indiana Code Title 27. Insurance § 27-8-5-18

Sec. 18. (a) Except for a policy that conforms to the description in section 16(2) of this chapter, a group accident and sickness insurance policy may be extended to insure the employees or members, or any class or classes of employees or members, with respect to their family members or dependents, subject to subsections (b) and (c).

(b) The premium for the insurance must be paid from funds contributed by the employer, union, association, or other person to whom the policy has been issued or from funds contributed by the covered persons, or from both sources of funds.  Except as provided in subsection (c), a policy on which no part of the premium for the coverage of family members or dependents is to be derived from funds contributed by the covered persons must insure all eligible employees or members, or any class or classes of eligible employees or members, with respect to their spouses and dependent children.

(c) Except as provided in section 24 of this chapter, an insurer may exclude or limit the coverage on any family member or dependent as to whom evidence of individual insurability is not satisfactory to the insurer.