What dispute deadlines should providers track in Missouri?

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: 45 calendar days from receipt of clean claim (RSMo § 376.383). Verify the trigger date, current agency notices, and any extension before acting.

Which agencies administer these rules in Missouri?

The guide identifies Missouri Department of Commerce and Insurance (DCI). The correct agency depends on the plan and claim jurisdiction.

Auto Accident, PIP & Medical Billing State Guides

Missouri Auto Accident, PIP & Medical Billing Laws

Missouri operates an At-Fault automobile insurance framework under Title XXIV and Title XXXVI of the Missouri Revised Statutes (RSMo). The state enforces pure comparative fault and features a strict common law prohibition against MedPay subrogation. Medical providers utilize optional first-party Medical Payments (MedPay) and enforce statutory hospital liens capped at 50% under RSMo § 430.230.

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 (MedPay Anti-Subrogation & Missouri Hospital Lien Act)

Missouri is a traditional tort jurisdiction applying pure comparative fault (Gustafson v. Benda), permitting an injured party to recover damages diminished by their percentage of fault. Automobile liability coverage is compulsory, while first-party Medical Payments (MedPay) is optional. Missouri courts strictly prohibit insurance companies from subrogating or taking assignments of personal injury claims or first-party MedPay benefits (Benton House, LLC v. Cook & Younts Ins.). Hospitals protect unpaid balances against third-party liability proceeds under the Missouri Hospital Lien Statute (RSMo § 430.230).

PIP and MedPay coverage

Optional Med Pay Coverage

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

Strict Anti Subrogation Rule

Under longstanding Missouri public policy and common law (Benton House; Schweiss v. Sisters of Mercy), personal injury claims and first-party medical payments are non-assignable and cannot be subrogated by an automobile insurer against third-party tort proceeds

Assignment Of Benefits

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

Medical fee schedule and reimbursement rules

Name

Reasonable and Customary Fee Standard

Rules

Missouri does not maintain a statutory fee schedule table for motor vehicle accident medical bills. Providers bill based on reasonable and customary charges prevailing in the local medical community for comparable care.

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 medical 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 RSMo § 376.383, insurers must pay clean claims within 45 calendar days of receipt. Under RSMo § 375.420, an insurer that vexatiously refuses to pay a claim without reasonable cause is subject to statutory penalties of up to 20% of the claim plus reasonable attorney fees.

Hospital Lien Act

Under RSMo § 430.230 - 430.250, any public, private, or charitable hospital has a statutory lien upon personal injury tort claims, settlements, and judgments. Under § 430.235, the hospital lien cannot exceed 50% of the patient's net recovery after deducting attorney fees and litigation costs. Notice of the lien must be served via certified mail on the injured party and the liability insurer before settlement proceeds are distributed.

Dispute Forum

Missouri Circuit Court (or Associate Circuit Court for claims up to $25,000) for civil recovery actions.

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 practicable
MedPay Claim Submission	Submission within standard policy billing deadlines (typically 1 to 3 years)
Clean Claim Payment Window	45 calendar days from receipt of clean claim (RSMo § 376.383)
Hospital Lien Written Service	Written notice served via certified mail prior to payment of settlement funds (RSMo § 430.240)
Statute of Limitations	5 years from accident date for personal injury tort claims (RSMo § 516.120); 10 years for contracts

Documentation checklist

Missouri 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
Written Notice of Hospital Lien served via certified mail with postal return receipts (RSMo § 430.240)
Insurer Explanation of Benefits (EOB) or written explanation of claim determination

Responsible agencies

Missouri Department of Commerce and Insurance (DCI)Statewide Regulation of Auto Insurers, Rate Filings & Consumer Inquiries

Primary legal and regulatory sources

Missouri Revised Statutes Title XXIX, Chapter 430, Section 430.230 (Hospital Liens on Personal Injury Claims)Missouri General Assembly - Revisor of Statutes · 2024
Missouri Revised Statutes Title XXIV, Chapter 376, Section 376.383 (Prompt Payment of Claims)Missouri General Assembly - Revisor of Statutes · 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 Missouri?: Missouri operates an At-Fault automobile insurance framework under Title XXIV and Title XXXVI of the Missouri Revised Statutes (RSMo). The state enforces pure comparative fault and features a strict common law prohibition against MedPay subrogation. Medical providers utilize optional first-party Medical Payments (MedPay) and enforce statutory hospital liens capped at 50% under RSMo § 430.230.
What dispute deadlines should providers track in Missouri?: 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: 45 calendar days from receipt of clean claim (RSMo § 376.383). Verify the trigger date, current agency notices, and any extension before acting.
Which agencies administer these rules in Missouri?: The guide identifies Missouri Department of Commerce and Insurance (DCI). The correct agency depends on the plan and claim jurisdiction.