§ 4906. Waiver. (a) Any agreement which purports to waive, limit,\ndisclaim, or in any way diminish the rights set forth in this article,\nexcept as provided pursuant to section four thousand nine hundred ten of\nthis article shall be void as contrary to public policy.\n (b) Notwithstanding subsection (a) of this section, in lieu of the\nexternal appeal process as set forth in this article, a health care plan\nand a facility licensed pursuant to article twenty-eight of the public\nhealth law may agree to an alternative dispute resolution mechanism to\nresolve disputes otherwise subject to this article.\n