State Medical Billing Laws — All 50 States, Filing Deadlines & Rules
State billing laws vary significantly across all 50 U.S. states and govern timely filing deadlines, balance billing rules, surprise billing protections, and statute of limitations for medical debt. This comprehensive reference details the specific regulations, filing deadlines, and compliance requirements for each state — helping medical practices, billing companies, and healthcare providers avoid penalties and protect revenue.
Alabama
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
Alabama follows federal No Surprises Act provisions but has limited state-level surprise billing protections. The statute of limitations for medical debt is 6 years. Providers must comply with timely filing requirements set by individual payers.
Key Regulations
- Federal No Surprises Act applies
- No state surprise billing law
- Balance billing permitted for out-of-network services
Alaska
Statute of Limitations: 3 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
Alaska has a 3-year statute of limitations on medical debt collection. The state relies primarily on federal protections under the No Surprises Act for surprise billing scenarios. Alaska's remote geography creates unique challenges for network adequacy.
Key Regulations
- 3-year statute of limitations for debt
- Federal No Surprises Act applies
- Remote area access considerations
Arizona
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
Arizona enacted surprise billing protections in 2022 limiting patient liability for out-of-network emergency services and certain non-emergency services at in-network facilities. The state prohibits balance billing for emergency services.
Key Regulations
- ARS 20-3102 surprise billing protections
- Balance billing prohibited for emergency services
- IDR process for payment disputes
Arkansas
Statute of Limitations: 5 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
Arkansas has a 5-year statute of limitations for medical debt. The state does not have comprehensive surprise billing legislation beyond federal requirements. Individual payer contracts govern most billing practices.
Key Regulations
- 5-year statute of limitations
- Federal No Surprises Act applies
- Payer contract terms govern filing limits
California
Statute of Limitations: 4 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
California has robust surprise billing protections under AB 72 (2017) and AB 1611. Patients cannot be balance billed for emergency services or by out-of-network providers at in-network facilities. An independent dispute resolution process settles payment disagreements between providers and payers.
Key Regulations
- AB 72 surprise billing protections
- Knox-Keene Act managed care regulations
- DMHC oversight of HMO billing practices
- Limits on balance billing for emergency services
Colorado
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
Colorado enacted comprehensive surprise billing protections in 2020 (HB 19-1174). The law limits patient cost-sharing for out-of-network emergency services and establishes a binding arbitration process for payment disputes. Balance billing is prohibited for covered emergency services.
Key Regulations
- HB 19-1174 surprise billing protections
- Binding arbitration for out-of-network disputes
- Balance billing prohibited for emergency services
Connecticut
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
Connecticut has strong consumer protections including surprise billing legislation that limits patient liability for out-of-network services at in-network facilities and emergency departments. The state maintains an arbitration process for provider-payer disputes.
Key Regulations
- PA 15-146 surprise billing protections
- Balance billing restrictions for emergencies
- Arbitration process for payment disputes
Delaware
Statute of Limitations: 3 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
Delaware has a short 3-year statute of limitations for medical debt. The state relies primarily on federal No Surprises Act protections. Providers should be aware of the shorter collection window for patient balances.
Key Regulations
- 3-year statute of limitations
- Federal No Surprises Act applies
- Limited state-level billing regulations
Florida
Statute of Limitations: 5 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
Florida enacted surprise billing protections under HB 221 (2016) for emergency services and HMO enrollees. The law prohibits balance billing for emergency services by out-of-network providers and establishes a dispute resolution process.
Key Regulations
- HB 221 surprise billing protections
- Balance billing prohibited for HMO emergency services
- Dispute resolution for out-of-network claims
- Florida Patient's Bill of Rights
Georgia
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
Georgia enacted the Surprise Billing Consumer Protection Act (HB 888) in 2020, prohibiting balance billing for emergency services and establishing an arbitration process. The law protects patients from unexpected out-of-network charges at in-network facilities.
Key Regulations
- HB 888 Surprise Billing Consumer Protection Act (2020)
- Balance billing prohibited for emergencies
- Arbitration for provider-payer disputes
Hawaii
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
Hawaii has unique insurance regulations under the Prepaid Health Care Act, which requires employers to provide health insurance. The state relies primarily on federal surprise billing protections. Hawaii's isolated geography impacts network adequacy and provider availability.
Key Regulations
- Prepaid Health Care Act employer mandate
- Federal No Surprises Act applies
- Unique island state access considerations
Idaho
Statute of Limitations: 5 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
Idaho has a 5-year statute of limitations for medical debt and relies primarily on federal protections for surprise billing. The state has limited specific medical billing regulations beyond general insurance laws.
Key Regulations
- 5-year statute of limitations
- Federal No Surprises Act applies
- General insurance code provisions
Illinois
Statute of Limitations: 5 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
Illinois has comprehensive surprise billing protections under the Illinois Insurance Code. The law prohibits balance billing for emergency services and establishes patient protections for out-of-network services at in-network facilities. An arbitration process resolves payment disputes.
Key Regulations
- 215 ILCS 5/356z.3a surprise billing protections
- Balance billing prohibited for emergency services
- Arbitration process for disputes
- Network adequacy requirements
Indiana
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
Indiana enacted surprise billing protections (HEA 1004) limiting patient liability for out-of-network emergency services. The law establishes a dispute resolution process between providers and insurers and restricts balance billing practices.
Key Regulations
- HEA 1004 surprise billing protections
- Balance billing restrictions
- Dispute resolution process
Iowa
Statute of Limitations: 5 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
Iowa has a 5-year statute of limitations for medical debt collection. The state relies on federal No Surprises Act protections and does not have comprehensive state-level surprise billing legislation.
Key Regulations
- 5-year statute of limitations
- Federal No Surprises Act applies
- Iowa Insurance Code provisions
Kansas
Statute of Limitations: 5 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
Kansas has a 5-year statute of limitations for medical debt. The state does not have comprehensive surprise billing legislation and relies on federal protections. Individual payer contracts set most billing requirements.
Key Regulations
- 5-year statute of limitations
- Federal No Surprises Act applies
- General insurance regulations
Kentucky
Statute of Limitations: 5 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
Kentucky has a 5-year statute of limitations for medical debt. The state does not have comprehensive surprise billing protections beyond federal law. Kentucky regulates managed care organizations through the Department of Insurance.
Key Regulations
- 5-year statute of limitations
- Federal No Surprises Act applies
- KRS Chapter 304 insurance regulations
Louisiana
Statute of Limitations: 3 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
Louisiana has a relatively short 3-year statute of limitations for medical debt. The state follows federal surprise billing protections. Louisiana has specific Medicaid billing requirements and operates a managed care Medicaid program.
Key Regulations
- 3-year statute of limitations
- Federal No Surprises Act applies
- Medicaid managed care regulations
Maine
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
Maine has surprise billing protections that limit patient cost-sharing for out-of-network emergency services and prohibit balance billing in certain situations. The state maintains consumer protection standards for healthcare billing.
Key Regulations
- Surprise billing protections
- Balance billing restrictions
- Consumer protection standards
Maryland
Statute of Limitations: 3 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
Maryland has a unique all-payer rate-setting system regulated by the Health Services Cost Review Commission (HSCRC). This system reduces surprise billing issues by standardizing hospital charges. The state also has specific balance billing protections.
Key Regulations
- HSCRC all-payer rate setting
- Balance billing protections
- Standardized hospital charge regulations
- HB 1122 surprise billing
Massachusetts
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
Massachusetts has comprehensive surprise billing protections and mandates that out-of-network providers at in-network facilities cannot balance bill patients. The state's health reform law provides additional consumer protections and requires most residents to have health insurance.
Key Regulations
- Chapter 224 health care cost containment
- Surprise billing protections
- Balance billing prohibited at in-network facilities
- Individual mandate for health insurance
Michigan
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
Michigan has a 6-year statute of limitations for medical debt and relies primarily on federal No Surprises Act protections. The state has specific regulations for auto insurance medical billing due to its no-fault auto insurance system.
Key Regulations
- 6-year statute of limitations
- No-fault auto insurance medical billing
- Federal No Surprises Act applies
Minnesota
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
Minnesota has surprise billing protections that restrict balance billing for emergency services and out-of-network services at in-network facilities. The state maintains strong consumer protection standards for healthcare billing practices.
Key Regulations
- Surprise billing protections
- Balance billing restrictions for emergencies
- Consumer protection standards
- Department of Commerce oversight
Mississippi
Statute of Limitations: 3 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
Mississippi has a 3-year statute of limitations for medical debt. The state does not have comprehensive surprise billing legislation and relies on federal protections. Mississippi has specific Medicaid billing requirements for its managed care program.
Key Regulations
- 3-year statute of limitations
- Federal No Surprises Act applies
- Medicaid billing requirements
Missouri
Statute of Limitations: 5 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
Missouri has enacted surprise billing protections (SB 579) that restrict balance billing for emergency services and certain out-of-network situations. The state maintains consumer protections through the Department of Commerce and Insurance.
Key Regulations
- SB 579 surprise billing protections
- Balance billing restrictions
- Department of Commerce and Insurance oversight
Montana
Statute of Limitations: 5 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
Montana has a 5-year statute of limitations for medical debt and relies on federal surprise billing protections. The state has specific requirements for rural health clinics and critical access hospitals given its rural geography.
Key Regulations
- 5-year statute of limitations
- Federal No Surprises Act applies
- Rural health clinic regulations
Nebraska
Statute of Limitations: 5 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
Nebraska has a 5-year statute of limitations for medical debt collection. The state relies on federal No Surprises Act protections and does not have comprehensive state-level surprise billing legislation.
Key Regulations
- 5-year statute of limitations
- Federal No Surprises Act applies
- Nebraska Insurance Code provisions
Nevada
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
Nevada enacted comprehensive surprise billing protections (SB 426, 2019) that prohibit balance billing for emergency services and limit out-of-pocket costs for patients receiving out-of-network care at in-network facilities.
Key Regulations
- SB 426 surprise billing protections (2019)
- Balance billing prohibited for emergencies
- Out-of-network cost protections
New Hampshire
Statute of Limitations: 3 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
New Hampshire has a 3-year statute of limitations for medical debt. The state follows federal surprise billing protections and has general insurance regulations through the Department of Insurance.
Key Regulations
- 3-year statute of limitations
- Federal No Surprises Act applies
- Department of Insurance regulations
New Jersey
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
New Jersey has strong surprise billing protections under the Out-of-Network Consumer Protection Act (2018). The law establishes an arbitration process for out-of-network billing disputes and prohibits balance billing for emergency and inadvertent out-of-network services.
Key Regulations
- Out-of-Network Consumer Protection Act (2018)
- Balance billing prohibited for emergencies
- Arbitration for out-of-network disputes
- Transparency requirements
New Mexico
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
New Mexico has surprise billing protections that limit patient liability for out-of-network emergency services. The state maintains consumer protection standards through the Office of Superintendent of Insurance.
Key Regulations
- Surprise billing protections
- Balance billing restrictions
- OSI oversight
New York
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
New York was a pioneer in surprise billing protections with its Emergency Medical Services and Surprise Bills law (2015). The law established an independent dispute resolution process and prohibits balance billing for emergency services and surprise out-of-network services. New York's law served as a model for the federal No Surprises Act.
Key Regulations
- Emergency Medical Services and Surprise Bills law (2015)
- Independent Dispute Resolution (IDR) process
- Balance billing prohibited
- Assignment of benefits provisions
North Carolina
Statute of Limitations: 3 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
North Carolina has a 3-year statute of limitations for medical debt. The state relies on federal surprise billing protections. North Carolina has specific requirements for certificate-of-need programs affecting hospital billing.
Key Regulations
- 3-year statute of limitations
- Federal No Surprises Act applies
- Certificate of need requirements
North Dakota
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
North Dakota has a 6-year statute of limitations for medical debt and relies on federal protections for surprise billing. The state has specific billing requirements for its Medicaid expansion program.
Key Regulations
- 6-year statute of limitations
- Federal No Surprises Act applies
- Medicaid expansion billing rules
Ohio
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
Ohio has enacted surprise billing protections (HB 388) that restrict balance billing for emergency services and establish patient protections for out-of-network services received at in-network facilities.
Key Regulations
- HB 388 surprise billing protections
- Balance billing restrictions
- Department of Insurance oversight
Oklahoma
Statute of Limitations: 5 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
Oklahoma has a 5-year statute of limitations for medical debt. The state does not have comprehensive surprise billing legislation beyond federal requirements. Oklahoma operates a competitive healthcare market with limited price regulation.
Key Regulations
- 5-year statute of limitations
- Federal No Surprises Act applies
- Oklahoma Insurance Code
Oregon
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
Oregon has surprise billing protections (HB 2089) that prohibit balance billing for emergency services and limit patient liability for out-of-network services at in-network facilities. The state also requires price transparency.
Key Regulations
- HB 2089 surprise billing protections
- Balance billing prohibited for emergencies
- Price transparency requirements
Pennsylvania
Statute of Limitations: 4 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
Pennsylvania has surprise billing protections (Act 112, 2020) that prohibit balance billing for emergency services and establish a dispute resolution process. The state also maintains comprehensive consumer protection standards.
Key Regulations
- Act 112 surprise billing protections (2020)
- Balance billing prohibited for emergencies
- Dispute resolution process
- Consumer protection standards
Rhode Island
Statute of Limitations: 10 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
Rhode Island has a lengthy 10-year statute of limitations for medical debt. The state relies on federal surprise billing protections and maintains insurance regulations through the Department of Business Regulation.
Key Regulations
- 10-year statute of limitations
- Federal No Surprises Act applies
- Department of Business Regulation oversight
South Carolina
Statute of Limitations: 3 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
South Carolina has a 3-year statute of limitations for medical debt. The state does not have comprehensive surprise billing legislation and relies on federal protections under the No Surprises Act.
Key Regulations
- 3-year statute of limitations
- Federal No Surprises Act applies
- General insurance regulations
South Dakota
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
South Dakota has a 6-year statute of limitations for medical debt. The state relies on federal No Surprises Act protections and has general insurance regulations through the Division of Insurance.
Key Regulations
- 6-year statute of limitations
- Federal No Surprises Act applies
- Division of Insurance regulations
Tennessee
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
Tennessee has a 6-year statute of limitations for medical debt. The state relies on federal protections for surprise billing. Tennessee operates the TennCare Medicaid managed care program with specific billing requirements.
Key Regulations
- 6-year statute of limitations
- Federal No Surprises Act applies
- TennCare billing requirements
Texas
Statute of Limitations: 4 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
Texas enacted comprehensive surprise billing protections under SB 1264 (2019), one of the strongest state laws in the country. The law prohibits balance billing for emergency services and out-of-network services at in-network facilities, and establishes a mediation/arbitration process for payment disputes.
Key Regulations
- SB 1264 surprise billing protections (2019)
- Balance billing prohibited for emergencies
- Mandatory mediation for disputes over $500
- Texas Department of Insurance oversight
Utah
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
Utah has a 6-year statute of limitations for medical debt collection. The state relies on federal surprise billing protections and maintains general insurance regulations through the Insurance Department.
Key Regulations
- 6-year statute of limitations
- Federal No Surprises Act applies
- Utah Insurance Code provisions
Vermont
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
Vermont has surprise billing protections and maintains comprehensive healthcare regulation through the Green Mountain Care Board. The state limits balance billing and maintains strong consumer protections for healthcare billing.
Key Regulations
- Surprise billing protections
- Green Mountain Care Board oversight
- Balance billing restrictions
- Healthcare price transparency
Virginia
Statute of Limitations: 5 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
Virginia enacted surprise billing protections (HB 1251/SB 172, 2020) that prohibit balance billing for emergency services and certain scheduled services at in-network facilities. The law establishes an arbitration process for payment disputes.
Key Regulations
- HB 1251/SB 172 surprise billing protections (2020)
- Balance billing prohibited for emergencies
- Arbitration process for disputes
Washington
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
Washington has comprehensive surprise billing protections under the Balance Billing Protection Act (2019). The law prohibits balance billing for emergency services and establishes a dispute resolution process. Washington also has strong healthcare price transparency requirements.
Key Regulations
- Balance Billing Protection Act (2019)
- Balance billing prohibited for emergencies
- Dispute resolution process
- Healthcare price transparency requirements
West Virginia
Statute of Limitations: 10 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
West Virginia has a lengthy 10-year statute of limitations for medical debt. The state relies on federal surprise billing protections and maintains general insurance regulations. West Virginia has specific Medicaid billing requirements.
Key Regulations
- 10-year statute of limitations
- Federal No Surprises Act applies
- Medicaid billing requirements
Wisconsin
Statute of Limitations: 6 years
Timely Filing Limit: 365 days
Balance Billing: Not Allowed
Surprise Billing Protection: Yes
Wisconsin has surprise billing protections that limit patient liability for out-of-network emergency services. The state maintains balance billing restrictions and consumer protection standards through the Office of the Commissioner of Insurance.
Key Regulations
- Surprise billing protections
- Balance billing restrictions
- OCI oversight
- Consumer protection standards
Wyoming
Statute of Limitations: 8 years
Timely Filing Limit: 365 days
Balance Billing: Allowed
Surprise Billing Protection: No
Wyoming has an 8-year statute of limitations for medical debt. The state relies on federal surprise billing protections and has general insurance regulations. Wyoming's rural geography impacts provider network availability.
Key Regulations
- 8-year statute of limitations
- Federal No Surprises Act applies
- Rural health considerations
Related Medical Billing Resources
Frequently Asked Questions
Do state prompt-pay laws apply to all insurance plans?
No — state prompt-pay laws generally apply to state-regulated fully-insured plans, but not to self-funded employer plans governed by ERISA, which fall under federal rather than state law. Knowing which category a patient's plan falls into determines which prompt-pay timeline actually applies.
What happens if a payer misses a state's prompt-pay deadline?
Most states with prompt-pay statutes require payers to pay statutory interest on claims paid after the deadline, and some allow additional penalties. Providers need to track claim submission and payment dates to identify and pursue these penalty payments.
Do balance billing restrictions vary significantly by state?
Yes — since the federal No Surprises Act set a baseline in 2022, individual states have layered additional, sometimes stricter, balance-billing protections on top for state-regulated plans, so the rules that apply can depend on both the state and the plan type.