16. All eligible persons, other than persons to whom paragraphs 1 to 3 of section 15 apply, who by reason of current or former employment status, profession or habitual occupation qualify for membership in a group to which a group insurance contract or employee benefit plan including coverage for the cost of pharmaceutical services and medications applies, must become members of that group for at least the basic plan coverage.
The obligation to become a member of such a group does not apply to a person who, as a spouse, a child or a person suffering from a functional impairment, benefits from coverage for the cost of pharmaceutical services and medications under a group insurance contract or employee benefit plan referred to in the first paragraph.