“Fast-emerging” large workers compensation claims, or those reaching $1 million or an applicable threshold in incurred losses within roughly two years of injury, now make up a majority of all large claims, according to the National Council on Compensation Insurance. slow-emerging large claims have declined as a share of large losses over the same period. NCCI defines large claims as those with total incurred losses above specified thresholds, such as $1 million, adjusted for inflation. Fast-emerging large claims are often tied to severe traumatic injuries such as vehicle accidents or significant falls, which may require extensive acute care and costly in-home services. Historically, slow-emerging large claims have been linked to injuries like strains or those from lifting.