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Permanent Partial Disability

PPD benefit structure

In 2003, SB 757 created a new structure for permanent partial disability (PPD) benefits. The changes, which were made permanent by HB 2244 (2007), apply to claims for injuries and illnesses occurring since January 2005. Since then, permanent impairment of all body parts and systems is rated as a percentage of the whole person. Workers receive an impairment benefit based on the statewide average weekly wage multiplied by their percentage of impairment. Benefits are adjusted annually in accordance with any changes in the state average weekly wage.

Workers who are unable to return to work receive a work disability benefit based on the impairment modified by age, education, adaptability factors, and earnings at the time of injury. Wage-based work disability rates are limited to a range between 50 percent and 133 percent of the state average weekly wage.

HB 2244 (2007) also required the Workers’ Compensation Management-Labor Advisory Committee (MLAC) to review permanent partial disability benefit amounts on a biennial basis and make recommendations to ensure the original policy goals continue to be met over time. One of those goals is to allocate PPD award dollars equitably in claims with greater economic loss.


The following table provides the number of closed claims with PPD awards, the percentage of all closures with PPD awards, and the average PPD awarded per claim. These data will change by small amounts as claims are reopened or modified on appeal.

Workers' Compensation Claims with Permanent Partial Disability (PPD)

Year Closed claims with PPD Percent of closed claims with PPD Average PPD award
Workers' Compensation Claims with Permanent Partial Disability (PPD)

The following table provides data on the number of claims with PPD awards under the structure created by SB 757. As noted earlier, some claims receive just an impairment award. Workers who cannot return to work receive both an impairment award and a work disability award. For these claims, the average impairment awards and average work disability awards are shown separately in the table.

Workers' Compensation Claims with PPD, since 2005 structure change

Year Post-2005 PPD claims Post-2005 Impairment-only claims Post-2005. imp.-only claims, average PPD Post-2005 work disability claims Post-2005 WD claims, average impairment award Post-2005 WD claims, average work disability award
Workers' Compensation Claims with PPD, since 2005 structure change
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