Workers' Compensation Information System
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 March 1, 2000 and electronic versions of benefit notices were mandated as of July 1, 2000. Electronic reporting of medical billing data is required for any medical service that occurs on or after Sept. 22, 2006.
Information, resources, and training
- Text of regulations - effective Sept. 27, 2017
FROI/SROI Reporting Rules effective on and after March 27, 2018
Reporting Regulations
- Text of regulations - effective September 27, 2017
Implementation Guides
National
- IAIABC EDI Implementation guide for First, Subsequent, Acknowledgment Detail, Header, & Trailer Records, Release 1, February 15, 2002
California
- California EDI Implementation Guide for First and Subsequent Reports of Injury (FROI/SROI) - version 3.1
Resources
- Frequently asked questions about FROI/SROI version 3.1
- EDI trading partner profile - FROI/SROI version 3.1
- FROI and SROI Valid Values Table
- 2024 WCIRB Class Codes (DN 59)
- 2022 version 2-6 Digit NAICS Codes (DN 25)
- Cause of Injury Codes including COVID-19 (DN37 )
- Nature of Injury Codes including COVID-19 (DN35)
- Part of Body Codes (FROI DN36 and SROI DN83)
Reports
Implementation Guides
National
- IAIABC EDI Implementation Guide for medical bill payment records
California
- California EDI Implementation Guide for medical bill payment records - version 2.0 - effective Sept. 27, 2017
- California EDI Implementation Guide for medical bill payment records - version 2.0 - April 6, 2016
- California EDI Implementation Guide for medical bill payment records - version 1.1 - Nov. 15, 2011
Resources
- Frequently asked questions about medical bill payment version 2.0 - April 6, 2016
- Medical trading partners profile and SFTP connectivity procedures - version 2.0
- WCIS medical data validation logic California Version 2.0 - effective Sept. 27, 2017
Reports, Tables and Dashboards
Contact us
Please e-mail questions or comments regarding WCIS to wcis@dir.ca.gov
October 2024