Missouri Revised Statutes Title XII. Public Health and Welfare § 198.048. Different classifications of facility may exist on same premises, when

(1) The skilled nursing, intermediate care, assisted living facility or residential care facility is an identifiable unit thereof, such as an entire ward or contiguous wards, wing or floor of a building or a separate contiguous building and such identifiable unit is approved in writing by the department;

(2) The identifiable unit meets all the reasonable standards for such facility;

(3) Central services and facilities such as management services, nursing and other patient-care services, building maintenance and laundry which are shared with other units are determined to be sufficient to meet the reasonable standards for such a facility.