Illinois Impairment Rating Guide
Illinois workers' compensation references the AMA Guides as one factor in determining permanent impairment under 820 ILCS 305/8.1b.
Which Edition?
AMA Guides Edition Hybrid (AMA + Other Factors)
Statutory Authority
820 ILCS 305/8.1b
PPD Calculation
Illinois uses a five-factor analysis: AMA Guides 6th Edition rating is one of five factors (also: occupation, age, future earning capacity, evidence of disability). No single factor controls.
Notes
AMA Guides 6th Edition is statutorily considered but not exclusive. Calculator output represents only the AMA factor.
Frequently Asked Questions
How does Illinois use the AMA Guides for impairment rating?
Illinois references the AMA Guides as one factor in determining permanent impairment under 820 ILCS 305/8.1b. The statutory framework considers additional factors beyond the AMA rating alone — see the notes below for details.
How is permanent partial disability calculated in Illinois?
Illinois uses a five-factor analysis: AMA Guides 6th Edition rating is one of five factors (also: occupation, age, future earning capacity, evidence of disability). No single factor controls.
Where can I find a certified impairment rater in Illinois?
Browse our directory of certified impairment raters listed for Illinois. View the directory →
Does this information constitute legal or medical advice?
No. This page provides general statutory and methodological information for educational purposes only. Statutes change, case law shifts controlling interpretation, and individual cases turn on facts beyond what reference material can capture. Consult qualified legal counsel and a credentialed rating physician for any specific matter.
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