The Board of Immigration Appeals (Board) has determined that the one year term of imprisonment required to classify a conviction as a crime of violence includes a period of confinement in a drug rehabilitation facility. the Board noted that section 101(a)(43)(B) of the Immigration and Nationality Act defines a term of imprisonment as a “period of incarceration or confinement ordered by a court of law regardless of any suspension of the imposition or execution of that imprisonment or sentence in whole or in part.” Thus, if an applicant is ordered to serve a period of confinement in a drug rehabilitation facility, this qualifies as a term of confinement imposed by a court of law, and thus, qualifies as a term of imprisonment as well.
The full text of Matter of Calvillo Garcia can be found here: http://www.justice.gov/sites/default/files/pages/attachments/2015/12/09/3855.pdf