What dispute deadlines should providers track in Wisconsin?

Accident Notice: Notice to insurer as soon as reasonably possible (Wis. Stat. § 631.81); Medical Bill Submission: Submission within standard policy claim submission windows; Carrier 30-Day Pay Window: 30 calendar days from receipt of written proof of loss (Wis. Stat. § 628.46). Verify the trigger date, current agency notices, and any extension before acting.

Which agencies administer these rules in Wisconsin?

The guide identifies Wisconsin Office of the Commissioner of Insurance (OCI). The correct agency depends on the plan and claim jurisdiction.

Auto Accident, PIP & Medical Billing State Guides

Wisconsin Auto Accident, PIP & Medical Billing Laws

Wisconsin operates an At-Fault automobile insurance framework under Wis. Stat. § 632.32, requiring insurers to offer Medical Payments (MedPay) coverage of at least $1,000 per person unless rejected in writing. Claim payments are governed by strict prompt-pay rules with a 7.5% statutory interest rate under Wis. Stat. § 628.46, and hospitals protect balances using statutory liens under Wis. Stat. § 779.80.

Accountability & Review

Reviewed by Millennova Legal Operational Integrity Team, Senior Audit and Arbitration Analysts

Last Reviewed

2026-03-01

Plain-language overview

Add-On PIP (Mandatory MedPay Offering & Prompt-Pay Statute)

Wisconsin enforces a modified comparative negligence tort system (51% bar) alongside mandatory offerings of first-party Medical Payments (MedPay) coverage. Under Wis. Stat. § 632.32(4)(a)2b, automobile liability policies must provide MedPay of at least $1,000 per person (often selected at $5,000 to $10,000 or higher) unless rejected in writing by the policyholder. Insurers are subject to strict prompt-pay timelines under Wis. Stat. § 628.46, requiring payment within 30 days of receiving written notice and proof of loss.

PIP and MedPay coverage

Mandatory Med Pay Offering

$1,000 statutory minimum per person for medical, surgical, dental, ambulance, and hospital expenses, with higher optional limits commonly purchased (Wis. Stat. § 632.32(4)(a)2b)

Written Rejection Requirement

Coverage is included in every automobile liability policy unless the named insured rejects MedPay in writing

Collateral Source Rule

Wisconsin's collateral source rule generally allows injured parties to recover full medical value in third-party tort actions, while MedPay insurers may seek contractual subrogation subject to the made-whole doctrine (Rimes v. State Farm)

Assignment Of Benefits

Healthcare providers routinely accept patient assignments of MedPay benefits for direct reimbursement

Medical fee schedule and reimbursement rules

Name

Reasonable Medical Charges Standard

Rules

Wisconsin does not enforce a statutory medical fee schedule table for motor vehicle accident claims. Healthcare providers are reimbursed based on reasonable and customary charges for similar medical services in the local market.

Cpt Basis

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

Preauthorization and utilization review

Requirement

Preauthorization is not required by statute for emergency medical stabilization or initial acute management. Elective surgical procedures, diagnostic MRI scans, or prolonged physical therapy regimens are reviewed for clinical necessity under the insurer's policy terms.

Independent Examinations

Insurers may request independent medical reviews or examinations under standard policy provisions when ongoing treatment necessity is questioned.

Appeals and dispute resolution

Thirty Day Prompt Pay Statute

Under Wis. Stat. § 628.46 (Timely payment of claims), an insurer must pay all covered claims within 30 days after receiving written notice and proof of the fact and amount of loss. Claims not paid within 30 days accrue simple interest at 7.5% per year.

Statutory Attorney Fees

Wisconsin courts strictly enforce § 628.46 interest against insurers that unreasonably delay or withhold medical payments without reasonable proof that they are not responsible.

Hospital Lien Statute

Under Wis. Stat. § 779.80, charitable and municipal hospitals have a statutory lien upon personal injury tort claims and recoveries. A written notice of lien must be filed with the clerk of circuit court in the county where hospital services were rendered before settlement proceeds are distributed.

Dispute Forum

Wisconsin Circuit Court for civil contract claims seeking overdue MedPay benefits.

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
Accident Notice	Notice to insurer as soon as reasonably possible (Wis. Stat. § 631.81)
Medical Bill Submission	Submission within standard policy claim submission windows
Carrier 30-Day Pay Window	30 calendar days from receipt of written proof of loss (Wis. Stat. § 628.46)
Hospital Lien Filing	Must be filed with county circuit court clerk prior to settlement distribution (Wis. Stat. § 779.80)
Statute of Limitations	3 years from accident date for personal injury tort claims (Wis. Stat. § 893.54); 6 years for contract claims

Documentation checklist

Wisconsin 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, and diagnostic scan reports
Filed Notice of Hospital Lien with clerk of circuit court recording stamp (for hospital claims under Wis. Stat. § 779.80)
Insurer Explanation of Benefits (EOB) or written explanation of non-payment

Responsible agencies

Wisconsin Office of the Commissioner of Insurance (OCI)Statewide Regulation of Auto Insurers, Market Conduct & Consumer Inquiries

Primary legal and regulatory sources

Wisconsin Statutes Chapter 632, Section 632.32 (Provisions of Motor Vehicle Liability Policies)Wisconsin State Legislature · 2024
Wisconsin Statutes Chapter 628, Section 628.46 (Timely Payment of Claims)Wisconsin State Legislature · 2024
Wisconsin Statutes Chapter 779, Subchapter VIII (Hospital Liens)Wisconsin 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 Wisconsin?: Wisconsin operates an At-Fault automobile insurance framework under Wis. Stat. § 632.32, requiring insurers to offer Medical Payments (MedPay) coverage of at least $1,000 per person unless rejected in writing. Claim payments are governed by strict prompt-pay rules with a 7.5% statutory interest rate under Wis. Stat. § 628.46, and hospitals protect balances using statutory liens under Wis. Stat. § 779.80.
What dispute deadlines should providers track in Wisconsin?: Accident Notice: Notice to insurer as soon as reasonably possible (Wis. Stat. § 631.81); Medical Bill Submission: Submission within standard policy claim submission windows; Carrier 30-Day Pay Window: 30 calendar days from receipt of written proof of loss (Wis. Stat. § 628.46). Verify the trigger date, current agency notices, and any extension before acting.
Which agencies administer these rules in Wisconsin?: The guide identifies Wisconsin Office of the Commissioner of Insurance (OCI). The correct agency depends on the plan and claim jurisdiction.