### Question
How is the "institution for mental diseases" defined?


### Answer
The term **institution for mental diseases** is defined in *42 U.S.C. § 1396d* as follows -

> a hospital, nursing facility, or other institution of more than 16 beds, that is primarily engaged in providing diagnosis, treatment, or care of persons with mental diseases, including medical attention, nursing care, and related services

#### Citation:
  - *42 U.S.C. § 1396d*
  - Heading: **CHAPTER 7-SOCIAL SECURITY > SUBCHAPTER XIX-GRANTS TO STATES FOR MEDICAL ASSISTANCE PROGRAMS**

