Ariz. Rev. Stat. § 20-2535
C. If the member's appeal involves an issue of medical necessity or appropriateness, including health care setting, level of care or effectiveness of a covered benefit, or is experimental or investigational under the coverage document and not whether the service is covered, the utilization review agent shall select a provider to review the appeal and render a determination based on the utilization review plan. For the purposes of this subsection:
1. "Advanced practice registered nurse" means any of the following as defined in section 32-1601:
2. "Provider" means either of the following: