Auto Accident, PIP & Medical Billing State Guides

Arizona Auto Accident, PIP & Medical Billing Laws

Arizona operates an At-Fault automobile insurance framework under Title 20 and Title 28 of the Arizona Revised Statutes (A.R.S.). Liability is governed by pure comparative fault under A.R.S. § 12-2505. Medical providers bill optional first-party Medical Payments (MedPay) and enforce statutory healthcare provider liens against third-party liability proceeds under A.R.S. § 33-931, subject to statutory compromise rules.

Accountability & Review
Reviewed by Millennova Legal Operational Integrity Team, Senior Audit and Arbitration Analysts
Last Reviewed
2026-03-01

Plain-language overview

At-Fault / Traditional Tort (Pure Comparative Fault & Arizona Healthcare Lien Act)

Arizona is an at-fault tort liability state without mandatory Personal Injury Protection (PIP) insurance. Medical care for motor vehicle collision injuries is funded through optional first-party Medical Payments (MedPay) coverage, private health insurance, or third-party automobile liability insurance. Under Arizona Constitution Art. 18, § 6 and Allstate v. Druke, subrogation of personal injury claims is restricted by public policy, subject to limited statutory MedPay reimbursement under A.R.S. § 20-259.01(J). Healthcare providers secure balances against third-party settlements by recording statutory liens under A.R.S. § 33-931.

PIP and MedPay coverage

Optional Med Pay Coverage

MedPay is optional in Arizona (commonly written in limits of $1,000 to $10,000+ per person), providing no-fault reimbursement for reasonable medical, surgical, dental, hospital, and ambulance expenses resulting from a motor vehicle collision

Limited Subrogation Rule

Under A.R.S. § 20-259.01(J), an auto insurer has a limited statutory right of reimbursement for MedPay benefits paid in excess of $5,000, but only if the claimant recovers from a third party and is fully compensated for all injuries

Assignment Of Benefits

Healthcare providers routinely obtain patient assignments of MedPay benefits for direct claims submission to automobile insurers

Medical fee schedule and reimbursement rules

Name

Reasonable and Customary Fee Standard

Rules

Arizona does not enforce a statutory fee schedule table for motor vehicle accident medical bills outside of workers' compensation. Providers bill based on reasonable and customary charges prevailing in the local medical market.

Cpt Basis

CPT/HCPCS itemized coding on standard CMS-1500 or UB-04 billing claims

Preauthorization and utilization review

Requirement

Preauthorization is not required by statute for emergency trauma stabilization or initial acute management. Elective surgical interventions and prolonged physical therapy regimens are evaluated under insurer medical necessity guidelines.

Carrier Examinations

Under standard auto policy terms, insurers may request medical records or independent physician reviews to evaluate causal relationship to the motor vehicle crash.

Appeals and dispute resolution

Prompt Payment Statute

Under A.R.S. § 20-462, insurers must pay clean claims within 30 calendar days of receipt. Claims not paid within 30 days accrue interest at the legal rate from the date the claim became overdue.

Health Care Provider Lien Act

Under A.R.S. § 33-931 et seq., hospitals, physicians, and ambulance providers have a statutory lien upon all claims, settlements, and judgments against third-party tortfeasors. To perfect the lien, the provider must record a verified notice of claim of lien in the office of the county recorder within 30 days of patient discharge (or 30 days of service for outpatient providers). Under A.R.S. § 33-934, healthcare liens are subject to statutory compromise if the patient's recovery does not fully compensate them.

Dispute Forum

Arizona Superior Court (or Justice Court for claims up to $10,000) for civil recovery actions and lien compromise petitions.

Claim and dispute deadlines

Deadlines can depend on the trigger event and may be affected by agency relief notices. Confirm the live rule before filing.

EventTimeframe
Accident NoticeNotice to insurer as soon as reasonably practicable
MedPay Claim SubmissionSubmission within standard policy billing deadlines (typically 1 to 3 years)
Clean Claim Payment Window30 calendar days from receipt of clean claim (A.R.S. § 20-462)
County Recorder Lien FilingMust be recorded with county recorder within 30 days of discharge or service (A.R.S. § 33-932)
Statute of Limitations2 years from accident date for personal injury tort claims (A.R.S. § 12-542); 6 years for written contracts

Documentation checklist

  • Arizona MedPay Claim Application Form
  • Executed Assignment of Benefits (AOB) and medical records authorization
  • Itemized CMS-1500 or UB-04 billing form with CPT/HCPCS codes and ICD-10 diagnostic coding
  • Contemporaneous medical records, emergency intake documentation, operative reports, and imaging findings
  • Recorded Notice of Health Care Provider Lien with county recorder recording stamp (A.R.S. § 33-932)
  • Insurer Explanation of Benefits (EOB) or written explanation of claim determination

Responsible agencies

Primary legal and regulatory sources

  1. Arizona Revised Statutes Title 33, Chapter 7, Article 3 (Health Care Provider Liens)Arizona State Legislature · 2024
  2. Arizona Revised Statutes Title 20, Section 20-462 (Timely Payment of Claims)Arizona State Legislature · 2024

This operational reference is educational, is not legal advice, and does not create an attorney-client relationship.

Common questions

What rules govern auto accident, pip & medical billing state guides in Arizona?
Arizona operates an At-Fault automobile insurance framework under Title 20 and Title 28 of the Arizona Revised Statutes (A.R.S.). Liability is governed by pure comparative fault under A.R.S. § 12-2505. Medical providers bill optional first-party Medical Payments (MedPay) and enforce statutory healthcare provider liens against third-party liability proceeds under A.R.S. § 33-931, subject to statutory compromise rules.
What dispute deadlines should providers track in Arizona?
Accident Notice: Notice to insurer as soon as reasonably practicable; MedPay Claim Submission: Submission within standard policy billing deadlines (typically 1 to 3 years); Clean Claim Payment Window: 30 calendar days from receipt of clean claim (A.R.S. § 20-462). Verify the trigger date, current agency notices, and any extension before acting.
Which agencies administer these rules in Arizona?
The guide identifies Arizona Department of Insurance and Financial Institutions (DIFI). The correct agency depends on the plan and claim jurisdiction.