(1) As used in this chapter, "disability income insurance" means insurance that provides for periodic payments, weekly, monthly, or otherwise, for a specified period during the continuance of disability resulting from sickness, injury, or a combination of sickness and injury.
(2) Disability income insurance shall be classified and filed as:
(a) Except as provided in paragraph (b) of this subsection, health insurance; or (b) Life insurance, if offered as an additional incidental benefit under a life insurance policy or contract.