42 C.F.R. § 435.1010
For purposes of FFP, the following definitions apply:
Active treatment in intermediate care facilities for individuals with intellectual disabilities means treatment that meets the requirements specified in the standard concerning active treatment for intermediate care facilities for persons with Intellectual Disability under § 483.440(a) of this subchapter.
Child-care institution means a nonprofit private child-care institution, or a public child-care institution that accommodates no more than twenty-five children, which is licensed by the State in which it is situated, or has been approved by the agency of the State responsible for licensing or approval of institutions of this type, as meeting the standards established for licensing. The term does not include detention facilities, forestry camps, training schools or any other facility operated primarily for the detention of children who are determined to be delinquent.
In an institution refers to an individual who is admitted to live there and receive treatment or services provided there that are appropriate to his requirements.
Inmate of a public institution means a person who is living in a public institution. An individual is not considered an inmate if—
Inpatient means a patient who has been admitted to a medical institution as an inpatient on recommendation of a physician or dentist and who—
Institution means an establishment that furnishes (in single or multiple facilities) food, shelter, and some treatment or services to four or more persons unrelated to the proprietor.
Institution for mental diseases means 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. Whether an institution is an institution for mental diseases is determined by its overall character as that of a facility established and maintained primarily for the care and treatment of individuals with mental diseases, whether or not it is licensed as such. An institution for Individuals with Intellectual Disabilities is not an institution for mental diseases.
Institution for Individuals with Intellectual Disabilities or persons with related conditions means an institution (or distinct part of an institution) that—
Institution for tuberculosis means an institution that is primarily engaged in providing diagnosis, treatment, or care of persons with tuberculosis, including medical attention, nursing care, and related services. Whether an institution is an institution for tuberculosis is determined by its overall character as that of a facility established and maintained primarily for the care and treatment of tuberculosis, whether or not it is licensed as such.
Medical institution means an institution that—
Outpatient means a patient of an organized medical facility or distinct part of that facility who is expected by the facility to receive, and who does receive, professional services for less than a 24-hour period regardless of the hour of admission, whether or not a bed is used or whether or not the patient remains in the facility past midnight.
Patient means an individual who is receiving needed professional services that are directed by a licensed practitioner of the healing arts toward maintenance, improvement, or protection of health, or lessening of illness, disability, or pain.
Persons with related conditions means individuals who have a severe, chronic disability that meets all of the following conditions:
(a) It is attributable to—
(d) It results in substantial functional limitations in three or more of the following areas of major life activity:
Public institution means an institution that is the responsibility of a governmental unit or over which a governmental unit exercises administrative control. The term “public institution” does not include—
(d) A child-care institution as defined in this section with respect to—
Publicly operated community residence that serves no more than 16 residents is defined in 20 CFR 416.231(b)(6)(i). A summary of that definition is repeated here for the information of readers.
(a) In general, a publicly operated community residence means—
(b) A publicly operated community residence does not include the following facilities, even though they accommodate 16 or fewer residents:
[43 FR 45204, Sept. 29, 1978, as amended at 47 FR 28655, July 1, 1982; 47 FR 31532, July 20, 1982; 51 FR 19181, May 28, 1986; 52 FR 47934, Dec. 17, 1987; 53 FR 657, Jan. 11, 1988; 53 FR 20495, June 3, 1988; 56 FR 8854, Mar. 1, 1991; 56 FR 23022, May 20, 1991; 59 FR 56233, Nov. 10, 1994. Redesignated at 71 FR 39225, July 12, 2006]