After September 28, 1975, no individual or group health insurance policy of insurance providing coverage on an expense incurred basis, nor individual or group service or indemnity type contract issued by a nonprofit corporation, nor any self-insured group health benefit plan or trust, of any kind or description, shall be issued or payment accepted therefor in renewal or continuation thereof unless coverage for any service performed in an ambulatory surgical center or abortion facility is provided for therein if such service would have been covered under the terms of the policy or contract as an eligible inpatient service, except as provided in section 376.805. Nothing in this section shall apply to a group contract, plan or trust which provides health care and surgical care directly to its members and their dependents. Nothing in this section shall be construed to mandate coverage under an individual or group health insurance policy of insurance providing coverage on an expense-incurred basis, or an individual or group service or indemnity type contract issued by a nonprofit corporation, or any self-insured group health benefit plan or trust, of any kind or description, to provide health insurance for services which are usually performed in a physician’s office.