The following tables and charts are generated by L&I Research and Data Services staff. They show the numbers and costs of injuries for claims with various characteristics such as injury type, occupation, firm risk class and experience factor.
L&I and self-insured workers' compensation claims
2007-2019 — Claims filed:
L&I workers' compensation claims
Accepted status only. Excludes claims filed with self-insured employers.
2007-2019 - Claims accepted: Number of claims and incurred costs by:
- Accident Type
- Body Part Injured
- Injury Nature
- Injury Source
- Occupation and Accident Type
- Occupation and Injury Nature
- Occupation and Injury Source
- Most frequent injuries
- Risk Class
Experience factors, number of firms and claim frequencies
- By North American Industrial Classification System (NAICS) Code
- By Standard Industrial Classification (SIC) Code
Go to our Experience Factor Q/A document, to see questions and answers about these reports.
Caution: There are many differences between the data in these tables and data in the Bureau of Labor Statistics Information (BLSI) survey. Do not attempt to combine or compare this data.
- Employer Assisted Injury Reporting - A report to the Legislature.
- Survey of Injured Workers: Claim Suppression and Direction of Care, June 2007.
- Employer Reporting Project Survey of Reasons for Delayed Reporting of Claims, Fall 2006.
- The Aging Workforce in Washington State: Impacts and Implications for Workers' Compensation, Second Edition, November 2007.
- Literature review, aging workforce, December 2005.
- 1997-1998 return-to-work study report - A report on the return-to-work success measures for 1997 to 1998.
- 1998-2000 return-to-work study report - A report on the return-to-work success measures for 1998 to 2000.