42 CFR § 440.167 - Personal care services.
(a) Personal care services means services furnished to an individual who is not an inpatient or resident of a hospital, nursing facility, intermediate care facility for individuals with intellectual disabilities, or institution for mental disease that are -
(1) Authorized for the individual by a physician in accordance with a plan of treatment or (at the option of the State) otherwise authorized for the individual in accordance with a service plan approved by the State;
(2) Provided by an individual who is qualified to provide such services and who is not a member of the individual's family; and
(3) Furnished in a home, and at the State's option, in another location.
(b) For purposes of this section, family member means a legally responsible relative.