Iowa Impairment Rating Guide
Iowa workers' compensation uses the 5th Edition of the AMA Guides to the Evaluation of Permanent Impairment under Iowa Code § 85.34.
Which Edition?
AMA Guides Edition 5th Edition
Statutory Authority
Iowa Code § 85.34
PPD Calculation
Statutory Maximum Weeks 500 weeks
Industrial disability for body-as-a-whole: weeks = disability% × 500. Scheduled members have fixed weeks.
Notes
AMA Guides 5th Edition is the prevailing reference. Iowa distinguishes "functional" impairment from "industrial" disability.
Frequently Asked Questions
Which edition of the AMA Guides does Iowa use?
Iowa uses the 5th Edition of the AMA Guides to the Evaluation of Permanent Impairment under Iowa Code § 85.34. The applicable edition is generally determined by the worker's date of injury; consult counsel for cases that straddle effective-date transitions.
How is permanent partial disability calculated in Iowa?
Industrial disability for body-as-a-whole: weeks = disability% × 500. Scheduled members have fixed weeks.
Where can I find a certified impairment rater in Iowa?
Browse our directory of certified impairment raters listed for Iowa. 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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