“Casualty insurance” includes malpractice insurance, insurance against legal liability of the insured, and against loss, damage, or expense incidental to a claim of such liability, and including medical, hospital, surgical, and funeral benefits to injured persons, irrespective of legal liability of the insured, arising out of the death, injury, or disablement of any person, or arising out of damage to the economic interest of any person, as the result of negligence in rendering expert, fiduciary, or professional service.

Source: SL 1966, ch 111, ch 4, § 6 (1) (k).