Summary
The purpose of this report is to compare impairment ratings (IR) assigned by doctors using the American Medical Association “Guides to Evaluation of Permanent Impairment” (AMA Guides), AMA Guides Fourth Edition, 1993, and the AMA Guides Sixth Edition, 2024. Currently, doctors in the Texas workers’ compensation system use the AMA Guides Fourth Edition. This report is a result from the Office of Medical Advisor Medical Quality Review, Audit Plan, 2024, which directs this study with DWC in coordination with the REG. This report compares IR for five different body part groups and six IR percentage groups.
Published April 2026 by the Workers' Compensation Research and Evaluation Group.
Key findings
