NCCI investigates the drivers of the 2015 decline in medical severity

Medical costs are currently about 60% of all workers compensation benefit costs in the United States. Medical costs in the system had a surprising year in 2015. For the first time in more than 20 years, the average severity of medical claims for employees who were out of work due to injury or illness declined, after years of steady increases in severity. NCCI examines the factors driving this decline.