For purposes of implementing this article, the State Department of Health Care Services may enter into exclusive or nonexclusive contracts, or amend existing contracts, on a bid or negotiated basis, and may implement changes to existing information technology systems. Notwithstanding any law, contracts entered into or amended, or changes to existing information technology systems, pursuant to this section shall be exempt from Chapter 6 (commencing with Section 14825) of Part 5.5 of Division 3 of Title 2, Section 19130, and Part 2 (commencing with Section 10100) of Division 2 of the Public Contract Code, and shall be exempt from the review or approval of any division of the Department of General Services.