; and (v) patient, family, and provider satisfaction. (2) Publication The Secretary shall publish the report required under paragraph (1) on a public internet website of the Department of Health and Human Services. 1010. Enhancing patient access to non-opioid treatment options Not later than January 1, 2019, the Secretary of Health and Human Services, acting through the Administrator of the Centers for Medicare & Medicaid Services, shall issue 1 or more final guidance documents, or update existing guidance documents, to States regarding mandatory and optional items and services that may be provided under a State plan under title XIX of the Social Security Act ( 42 U.S.C. 1396 et seq.), or under a waiver of such a plan, for non-opioid treatment and management of pain, including, but not limited to, evidence-based, non-opioid pharmacological therapies and non-pharmacological therapies. 1011. Assessing barriers to opioid use disorder treatment (a) Study (1) In general The Comptroller General of the United States (in this section referred to as the Comptroller General ) shall conduct a study regarding the barriers to providing medication used in the treatment of substance use disorders under Medicaid distribution models such as the buy-and-bill model, and options for State Medicaid programs to remove or reduce such barriers. The study shall include analyses of each of the following models of distribution of substance use disorder treatment medications, particularly buprenorphine, naltrexone, and buprenorphine-naloxone combinations: (A) The purchasing, storage, and administration of substance use disorder treatment medications by providers. (B) The dispensing of substance use disorder treatment medications by pharmacists. (C) The ordering, prescribing, and obtaining substance use disorder treatment medications on demand from specialty pharmacies by providers. (2) Requirements For each model of distribution specified in paragraph (1), the Comptroller General shall evaluate how each model presents barriers or could be