1. Short title This Act may be cited as the Expanding Access to Evidence-Based Opioid Treatment for Seniors Act of 2018 . 2. Medicare coverage of certain services furnished by opioid treatment programs (a) Coverage Section 1861(s)(2) of the Social Security Act ( 42 U.S.C. 1395x(s)(2) ) is amended— (1) in subparagraph (FF), by striking at the end and ; (2) in subparagraph (GG), by inserting at the end ; and ; and (3) by adding at the end the following new subparagraph: (HH) opioid use disorder treatment services (as defined in subsection (jjj)). . (b) Opioid use disorder treatment services and opioid treatment program defined Section 1861 of the Social Security Act is amended by adding at the end the following new subsection: (jjj) Opioid use disorder treatment services; opioid treatment program (1) Opioid use disorder treatment services The term opioid use disorder treatment services means items and services that— (A) are furnished for the treatment of opioid use disorder at an opioid treatment program enrolled under section 1866(j) by a physician or other practitioner that is enrolled under such section; and (B) are certified by the Substance Abuse and Mental Health Services Administration to be provided by such program for such treatment. (2) Opioid treatment program The term opioid treatment program means an opioid treatment program (as defined in section 8.2 of title 42 of the Code of Federal Regulations, or any successor regulation) that has an opioid treatment program certification (as defined in such section) in effect and meets such other conditions of participation as the Secretary may find necessary in the interest of the health and safety of individuals who are furnished services by such program. . (c) Payment (1) In general Section 1833(a)(1) of the Social Security Act ( 42 U.S.C. 1395l(a)(1) ) is amended— (A) by striking and (BB) and inserting (BB)