Workers Comp Impairment Rating Explained: How WPI, PDRS, and PPD Affect Your California Benefits
Estimated reading time: 16 minutes Key Takeaways An impairment rating is a medical percentage of your permanent loss of function; it anchors how disability benefits are calculated. In California, doctors state a Whole Person Impairment (WPI) using the AMA Guides; that WPI is adjusted by the Permanent Disability Rating Schedule (PDRS) to produce your final […]









