Workers Comp Lien

In California, medical billing timelines depend on the type of case. For workers’ compensation claims, providers must submit bills within 12 months from the date of service under California Labor Code §4603.2. Once the bill is submitted, the claims administrator must issue an Explanation of Review (EOR) within 45 working days.

If payment is incorrect or denied, providers have 90 days from receipt of the EOR to file a Second Bill Review (SBR), and 30 days after that to request Independent Bill Review (IBR) if necessary.

MLM helps providers track these critical timelines automatically, ensuring that no claim is disqualified due to late submissions or missed deadlines.

The biggest challenge in medical billing, especially in workers’ compensation cases, is navigating payer-specific requirements and compliance rules.
Errors such as missing adjuster information, incorrect CPT codes, incomplete documentation, or missed SBR/IBR deadlines can all delay or prevent payment.

For California providers, keeping up with WCAB standards, DIR updates, and evolving lien procedures adds another layer of complexity.
That’s why many clinics partner with Medical Lien Management (MLM), our structured process verifies every case detail, files on time, and ensures full compliance with state regulations to prevent revenue loss.

Recent updates to California’s workers’ compensation billing regulations emphasize timely submission, digital compliance, and transparency.
Providers must now use electronic billing (e-billing) for faster lien processing and adhere to specific documentation standards defined by the Division of Workers’ Compensation (DWC).

There are also stricter penalties for late submissions, incomplete RFAs, or missing documentation during lien filings.
MLM’s Jet Filing system, approved by the WCAB, is designed to meet these digital and procedural requirements, ensuring every claim is compliant, traceable, and recoverable.

Medical billing in California, particularly for workers’ compensation, is regulated by the Division of Workers’ Compensation (DWC), which operates under the Department of Industrial Relations (DIR).
They oversee billing timelines, lien filing standards, Second Bill Reviews, and Independent Bill Review procedures.

MLM stays current with every regulation issued by the DWC and WCAB. Our team follows California Labor Code Sections §4603.2, §4603.3, and §5307.1, ensuring that all billing, coding, and lien processes meet official compliance standards.

Yes, if a medical bill remains unpaid after all administrative and legal options (like SBR and IBR) are exhausted, providers can pursue collections or lien recovery through the Workers’ Compensation Appeals Board (WCAB).

However, before taking that step, it’s essential to verify that all billing, coding, and submission requirements were correctly followed, otherwise, a lien may be dismissed.

Medical Lien Management (MLM) assists providers by managing these steps efficiently, from documentation verification to negotiation and litigation support, ensuring every recoverable dollar is pursued properly before escalation to collections.

Medical billing codes are created and maintained by different governing organizations:

• CPT (Current Procedural Terminology) codes are managed by the American Medical Association (AMA).
• ICD-10 (diagnosis codes) are maintained by the World Health Organization (WHO) and adapted for U.S. use by the Centers for Medicare & Medicaid Services (CMS) and National Center for Health Statistics (NCHS).
• HCPCS (supply and procedure codes) are also standardized by CMS.

At MLM, our certified coders use these official code sets to ensure every bill submitted in California’s workers’ comp system meets both federal and state-level compliance requirements.

Medical billing companies handle the process of converting healthcare services into accurate claims, submitting them to insurers, and ensuring timely reimbursement.
In California’s workers’ compensation sector, billing involves additional steps like RFA tracking, lien filing, Second Bill Reviews, IBR submissions, and litigation support.

Unlike general billing firms, Medical Lien Management (MLM) provides a full lifecycle lien management system, starting from case verification and coding to negotiations, collections, and WCAB hearing preparation.
This ensures not just billing accuracy, but complete recovery and compliance for every workers’ comp claim filed in California.