Ariz. Rev. Stat. § 20-1376.04
If a disability insurance contract provides coverage for occupational or physical therapy services, and provides both an in-network and out-of-network benefit, an insurer shall not deny a claim for covered occupational or physical therapy services obtained out-of-network solely on the basis that a physician did not refer the insured to the occupational or physical therapist or prescribe specific occupational or physical therapy services. An insurer may impose coinsurance, copayments, deductibles, dollar caps, limitations on the number of visits, provider network restrictions or other cost containment measures as a condition of coverage of occupational and physical therapy services for both in-network and out-of-network benefits.
A.R.S. § 20-1376.04