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California's workers' compensation information system (WCIS) uses electronic data interchange (EDI) to collect comprehensive information from claims administrators to help the Department of Industrial Relations oversee the state's workers' compensation system. This information helps facilitate evaluation of the system and measure adequacy of benefits for injured workers and their dependents, and also provides statistical data for research. After initial development with input from affected groups, the first phase of WCIS became operational in September of 1999. Electronic transmission of first reports of injury was required beginning Mar. 1, 2000 and electronic versions of benefit notices were mandated as of Jul. 1, 2000. Electronic reporting of medical billing data is required for any medical service that occurs on or after Sep. 22, 2006.
Statutes and regulations
Information and resources
- WCIS advisory committee meeting agenda - handouts
- The Electronic Adjudication Management System (EAMS) presentation
- Electronic billing and medical billing standards presentation
- WCIS claim statistics: reports, tables and papers
- Introduction to electronic data interchange (EDI) service providers
- International Association of Industrial Accident Boards and Commissions (IAIABC)
First report and subsequent report of injury data reporting
- Electronic data interchange trading partner profile
- California EDI trading partner insurer/claim administrator ID list
- Frequently asked questions
- California EDI implementation guide for first and subsequent reports of injury. Version 2.1 February 2006
- IAIABC EDI Implementation Guide for first and subsequent reports of injury. Release 1.0, February 2002
- IAIABC issues resolution request (IRR) MED547R1.0
- California EDI implementation guide for medical bill payment records. Version 1.0, December 2005
- Frequently asked questions
- WCIS medical data training modules
- Medical trading partners profile and FTP connectivity procedures
- WCIS checklist for a variance for medical bill reporting
- IAIABC EDI Implementation Guide for Medical Bill Payment Records. Release July 1, 2002
If you have questions, comments regarding WCIS email us at wcis@dir.ca.gov.
September 2008