Ariz. Rev. Stat. § 36-2904
A. The administration may expend public funds appropriated for the purposes of this article and shall execute prepaid capitated health services contracts, pursuant to section 36-2906, with group disability insurers, hospital and medical service corporations, health care services organizations and any other appropriate public or private persons, including county-owned and operated facilities, for health and medical services to be provided under contract with contractors. The administration may assign liability for eligible persons and members through contractual agreements with contractors. If there is an insufficient number of qualified bids for prepaid capitated health services contracts for the provision of hospitalization and medical care within a county, the director may:
B. During any period in which services are needed and no contract exists, the director may do either of the following:
2. Pay a hospital subject to the reimbursement level limitation prescribed in section 36-2903.01.
If health and medical services are provided in the absence of a contract, the director shall continue to attempt to procure by the bid process as provided in section 36-2906 contracts for such services as specified in this subsection.
G. The administration shall not pay claims for system covered services that are initially submitted more than six months after the date of the service for which payment is claimed or after the date that eligibility is posted, whichever date is later, or that are submitted as clean claims more than twelve months after the date of service for which payment is claimed or after the date that eligibility is posted, whichever date is later, except for claims submitted for reinsurance pursuant to section 36-2906, subsection C, paragraph 6. The administration shall not pay claims for system covered services that are submitted by contractors for reinsurance after the time period specified in the contract. The director may adopt rules or require contractual provisions that prescribe requirements and time limits for submittal of and payment for those claims. Notwithstanding any other provision of this article, if a claim that gives rise to a contractor's claim for reinsurance or deferred liability is the subject of an administrative grievance or appeal proceeding or other legal action, the contractor shall have at least sixty days after an ultimate decision is rendered to submit a claim for reinsurance or deferred liability. Contractors that contract with the administration pursuant to subsection A of this section shall not pay claims for system covered services that are initially submitted more than six months after the date of the service for which payment is claimed or after the date that eligibility is posted, whichever date is later, or that are submitted as clean claims more than twelve months after the date of the service for which payment is claimed or after the date that eligibility is posted, whichever date is later. For the purposes of this subsection:
I. This subsection applies to inpatient hospital admissions and to outpatient hospital services on and after March 1, 1993. The director may negotiate at any time with a hospital on behalf of a contractor for services provided pursuant to this article. If a contractor negotiates with a hospital for services provided pursuant to this article, the following procedures apply:
1. The director shall require any contractor to reimburse hospitals for services provided under this article based on reimbursement levels that do not in the aggregate exceed those established pursuant to section 36-2903.01 and under terms on which the contractor and the hospital agree. However, a hospital and a contractor may agree on a different payment methodology than the methodology prescribed by the director pursuant to section 36-2903.01. The director by rule shall prescribe:
(d) That, except if submitted under an electronic claims submission system, a hospital bill is considered received for purposes of subdivision (f) on initial receipt of the legible, error-free claim form by the contractor if the claim includes the following error-free documentation in legible form:
(f) That a contractor shall pay for services rendered on and after October 1, 1997 under any reimbursement level according to paragraph 1 of this subsection subject to the following: