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AMA Guides Impairment Rating
Updated March 2026

AMA Guides to the Evaluation of Permanent Impairment, 5th Edition (AMA Guides)

Legal basis: LC §4660.1(a)

Definition

The American Medical Association's reference manual used in California to rate permanent impairment in workers' compensation cases. California mandates use of the 5th Edition specifically, which provides standardized criteria for evaluating impairment across all organ systems and body regions.

Key Facts About AMA Guides in 2026

QME Physicians in CA

~2,500

Evaluation Fee Range

$2,500-$4,000

Report Deadline

30 days

Avg AI-Assisted Turnaround

14 days

Related Terms

Frequently Asked Questions

What is a AMA Guides to the Evaluation of Permanent Impairment, 5th Edition (AMA Guides)?

The American Medical Association's reference manual used in California to rate permanent impairment in workers' compensation cases. California mandates use of the 5th Edition specifically, which provides standardized criteria for evaluating impairment across all organ systems and body regions.

What is the legal basis for AMA Guides in California workers' compensation?

AMA Guides to the Evaluation of Permanent Impairment, 5th Edition is governed by LC §4660.1(a) under California workers' compensation law. This statute defines the requirements, procedures, and standards for ama guides to the evaluation of permanent impairment, 5th edition in the workers' compensation system as of 2026.

How is ama guides to the evaluation of permanent impairment, 5th edition calculated in California?

AMA Guides to the Evaluation of Permanent Impairment, 5th Edition in California workers' compensation is typically determined using the AMA Guides to the Evaluation of Permanent Impairment, 5th Edition (2001). QME and AME physicians use standardized rating methods to ensure consistency across evaluations.