6. Medical services provided by an intern or resident-in-training at a hospital under a teaching program of such hospital.
Further, all skilled nursing services and those services listed in items 1 through 4 of this subparagraph (ix) must be provided directly by the licensed home health agency. For purposes of this subparagraph, "directly" means either through an agency employee or by an arrangement with another individual not defined as a health care facility.
This subparagraph (ix) shall not apply to health care facilities which had contracts for the above services with a home health agency on January 1, 1990.