Auto Accident, PIP & Medical Billing State Guides
Michigan Auto Accident, PIP & Medical Billing Laws
Michigan operates a No-Fault automobile insurance system under MCL 500.3101 et seq., modified by Public Acts 21 and 22 of 2019. Insureds select from tiered Personal Injury Protection (PIP) medical coverage limits, and medical provider reimbursement is controlled by statutory fee caps tied to Medicare Part B percentages under MCL 500.3157.
Plain-language overview
No-Fault (Tiered PIP Medical Choice under MCL 500.3107c)
Following the 2019 reform, Michigan drivers may select PIP medical benefit caps of $50,000 (Medicaid enrollees), $250,000, $500,000, or unlimited lifetime coverage. Treatment rendered to injured motorists must be billed in conformity with the fee schedule enacted under MCL 500.3157. Insurers are subject to statutory prompt-pay requirements and utilization review procedures administered by the Department of Insurance and Financial Services (DIFS).
PIP and MedPay coverage
Coverage Tiers
Insureds choose $50,000 (Medicaid qualified), $250,000, $500,000, or unlimited PIP medical benefits; Medicare enrollees may opt out entirely (MCL 500.3107c)
Attendant Care Limitations
In-home family attendant care is limited to 56 hours per week unless insurer contracts for additional hours (MCL 500.3157(10))
Assignment Of Benefits
Healthcare providers may accept assignments of post-loss PIP benefits or maintain direct causes of action under MCL 500.3112
Medical fee schedule and reimbursement rules
Name
Michigan No-Fault Statutory Fee Schedule (MCL 500.3157)
Rules
Services with an established Medicare code are reimbursed at statutory percentages of the Medicare Part B fee schedule (ranging from 190% to 250% depending on service date, provider type, and Level I/II trauma center designation). Services lacking a Medicare code are reimbursed at statutory percentages (52.5% to 55%) of the provider's charge description master (CDM) in effect on January 1, 2019, adjusted for CPI-U.
Cpt Basis
CMS Medicare Part B physician and outpatient fee schedules adjusted for Michigan geographic localities
Appeals and dispute resolution
Utilization Review
Under Mich. Admin. Code R 500.61 - R 500.69, when an insurer denies or reduces medical payment based on medical necessity or overutilization, the provider must file an appeal with DIFS within 28 days of receiving the explanation of benefits.
Prompt Payment Penalty
Under MCL 500.3142, claims become overdue if not paid within 30 days after the insurer receives reasonable proof of the fact and amount of loss. Overdue payments bear simple interest at 12% per year.
Litigation Forum
Michigan District Court (claims up to $25,000) or Circuit Court (claims exceeding $25,000). Direct provider lawsuits are authorized under MCL 500.3112.
One Year Back Rule
Under MCL 500.3145, actions must be commenced within one year of the accident. The one-year limitation period is tolled from the date the insurer receives a specific claim for benefits until the insurer formally denies the claim in writing.
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.
| Event | Timeframe |
|---|---|
| Notice of Injury to Insurer | Within 1 year of accident date (MCL 500.3145(1)) |
| Medical Bill Submission | Immediately upon service; subject to the 1-year back limitation |
| Insurer Payment Window | 30 calendar days from receipt of complete proof of loss (MCL 500.3142) |
| DIFS Utilization Review Appeal | Within 28 calendar days of carrier EOB denial |
| Statute of Limitations / One-Year-Back | 1 year from date of expense; tolled during claim review until formal denial |
Documentation checklist
- Executed Assignment of Benefits (AOB) or provider attestation under MCL 500.3112
- Itemized CMS-1500 or UB-04 billing form with CPT/HCPCS and ICD-10 diagnostic coding
- Contemporaneous medical records, operative reports, and objective diagnostic findings
- January 1, 2019 Charge Description Master (CDM) documentation for non-Medicare coded services
- Certified proof of mailing or electronic EDI delivery showing submission date to the PIP carrier
Responsible agencies
- Michigan Department of Insurance and Financial Services (DIFS)Statewide Insurance Regulation, Fee Schedule Rules & Utilization Review
- Michigan Catastrophic Claims Association (MCCA)Statutory Reinsurance for Catastrophic PIP Medical Claims
Primary legal and regulatory sources
- Michigan Compiled Laws Chapter 500, Act 218 of 1956 (Insurance Code - Chapter 31)Michigan Legislature · 2024
- Michigan Administrative Code R 500.61 - R 500.69 (Utilization Review Rules)Michigan DIFS / Office of Administrative Hearings and Rules · 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 Michigan?
- Michigan operates a No-Fault automobile insurance system under MCL 500.3101 et seq., modified by Public Acts 21 and 22 of 2019. Insureds select from tiered Personal Injury Protection (PIP) medical coverage limits, and medical provider reimbursement is controlled by statutory fee caps tied to Medicare Part B percentages under MCL 500.3157.
- What dispute deadlines should providers track in Michigan?
- Notice of Injury to Insurer: Within 1 year of accident date (MCL 500.3145(1)); Medical Bill Submission: Immediately upon service; subject to the 1-year back limitation; Insurer Payment Window: 30 calendar days from receipt of complete proof of loss (MCL 500.3142). Verify the trigger date, current agency notices, and any extension before acting.
- Which agencies administer these rules in Michigan?
- The guide identifies Michigan Department of Insurance and Financial Services (DIFS), Michigan Catastrophic Claims Association (MCCA). The correct agency depends on the plan and claim jurisdiction.