Nursing Home-a private home, institution, building, residence or other place, serving three or more persons who are not related by blood or marriage to the operator, whether operated for profit or not, and including those places operated by a political subdivision of the state of Louisiana which undertakes, through its ownership or management, to provide maintenance, personal care, or nursing for persons who, by reason of illness or physical infirmity or age, are unable to properly care for themselves. The term does not include the following:
a. a hospital, sanitarium or other institution whose principal activity or business is the care and treatment of persons suffering form tuberculosis or from mental disease;
b. a hospital, sanitarium or other medical institution whose principal activity or business is the diagnosis, care and treatment of human illness through the maintenance and operation of organized facilities therefor.
La. Admin. Code tit. 51, § XX-101