(a) As used in this section, the following words have the following meanings:

(1) “Concurrent review” means inpatient care is reviewed as it is provided. Medically qualified reviewers monitor appropriateness of the care, the setting, and patient progress, and, as appropriate, the discharge plans.

(2) “Covered person” means an individual, other than a Medicaid recipient, for whom coverage has been provided pursuant to the provisions of this article.

(3) “Insurance Commissioner” means the person appointed pursuant to the provisions of §33-2-1 of this code.

(4) “Health benefit plan” means the same as that term is defined in §33-24-7p of this code.

(5) “Health plan issuer” means the same as that term is defined in §33-24-7p of this code.

(6) “Physician” or “psychiatrist” means a person licensed pursuant to the provisions of either §30-3-1 et seq. or §30-14-1 et seq. of this code.

(7) “Psychologist” means a person licensed pursuant to the provisions of §30-21-1 et seq. of this code.

(8) “Substance use disorder” means the same as that term is defined by the American Psychiatric Association in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, and shall include substance use withdrawal.

(b) A health benefit plan offered by a health plan issuer that provides hospital or medical expense benefits and is delivered, issued, executed, or renewed in this state, or approved for issuance or renewal by the Insurance Commissioner, on or after January 1, 2019, shall provide benefits for inpatient and outpatient treatment of substance use disorder at in-network facilities at the same level as other medical services offered by the health benefit plan.

(c) The services for the treatment of substance use disorder shall be:

(1) Prescribed by a physician or psychiatrist licensed pursuant to the provisions of §30-3-1 et seq. or §30-14-1 et seq. of this code or recommended by a psychologist licensed pursuant to the provisions of §30-21-1 et seq. of this code; and

(2) Provided by licensed health care professionals or licensed or certified substance use disorder providers in licensed or otherwise state-approved facilities, as required by this code.

(d) The inpatient and outpatient treatment of substance use disorders shall be provided when determined medically necessary by the covered person’s physician, psychologist, or psychiatrist. The facility shall notify the insurer of both the admission and the initial treatment plan within 48 hours of the admission or initiation of treatment. If there is no in-network facility immediately available for a covered person, a health benefit plan offered by a health plan issuer shall provide necessary exceptions to its network to ensure admission in a treatment facility within 72 hours. A health benefit plan may transfer a covered person to an in-network facility if one becomes available during the course of the treatment plan. If a covered person is being treated at an out-of-network facility and an in-network facility becomes available during the course of the treatment plan, an insurer may transfer the covered person to the in-network facility.

(e) Providers of treatment for substance use disorders to persons covered under a covered contract shall not require prepayment of medical expenses during this 180 days in excess of applicable copayment, deductible, or coinsurance as provided in the contract.

(f) The benefits for outpatient visits may be subject to concurrent or retrospective review of medical necessity or any other utilization management review.

(g)(1) If an insurer determines that continued inpatient care in a facility is no longer medically necessary, the insurer shall within 72 hours provide written notice to the covered person and the covered person’s physician of its decision and the right to file for an expedited review of an adverse decision.

(2) The insurer shall review and make a determination with respect to the internal appeal within 72 hours and communicate the determination to the covered person and the covered person’s physician.

(3) If the determination is to uphold the denial, the covered person and the covered person’s physician have the right to file an expedited external appeal with an independent review organization. An independent utilization review organization shall make a determination within 72 hours.

(4) If the insurer’s determination is upheld and it is determined continued inpatient care is not medically necessary, the insurer remains responsible to provide benefits for the inpatient care through the day following the date the determination is made and the covered person is only responsible for any applicable copayment, deductible, and coinsurance for the stay through that date as applicable under the contract.

(5) The covered person shall not be discharged or released from the inpatient facility until all internal appeals and independent utilization review organization appeals are exhausted. For any costs incurred after the day following the date of determination until the day of discharge, the covered person is only responsible for any applicable cost-sharing, and any additional charges shall be paid by the facility or provider.

(h) The Insurance Commissioner shall propose rules in accordance with the provisions of §29A-3-1 et seq. of this code to develop a procedure for an expedited review of an adverse decision as set forth in this section. The Legislature finds that for the purposes of §29A-3-15 of this code, an emergency exists requiring the promulgation of an emergency rule to respond to the growing need in our state for substance abuse treatment.

(i)(1) The benefits for the first five days of intensive outpatient or partial hospitalization services shall be provided without any retrospective review of medical necessity, and medical necessity shall be determined by the covered person’s physician.

(2) The benefits beginning day six and every six days thereafter of intensive outpatient or partial hospitalization services are subject to a concurrent review of the medical necessity of the services.

(j) Medical necessity review shall use an evidence-based and peer-reviewed clinical review tool. This tool shall be developed by the Insurance Commissioner. The Insurance Commissioner shall propose rules for legislative approval in accordance with the provisions of §29A-3-1 et seq. of this code to develop the tool.

(k) The benefits for outpatient prescription drugs to treat substance use disorder shall be provided when determined medically necessary by the covered person’s physician or psychiatrist without the imposition of any prior authorization or other prospective utilization management requirements.

(l) The days per plan year of benefits shall be computed based on inpatient days. One or more unused inpatient days may be exchanged for two outpatient visits. All extended outpatient services such as partial hospitalization and intensive outpatient, shall be considered inpatient days for the purpose of the visit-to-day exchange provided in this subsection.

(m) Except as provided in this section, the benefits and cost-sharing shall be provided to the same extent as for any other medical condition covered under the contract.

(n) The benefits required by this section are to be provided to all covered persons with a diagnosis of substance use disorder. The presence of additional related or unrelated diagnoses shall not be a basis to reduce or deny the benefits required by this section.

(o) The provisions of this section apply to all insurance contracts in which the insurer has reserved the right to change the premium.