Idaho Impairment Rating Guide
Idaho workers' compensation uses the 6th Edition of the AMA Guides to the Evaluation of Permanent Impairment under Idaho Code § 72-422 / § 72-428.
Which Edition?
AMA Guides Edition 6th Edition
Statutory Authority
Idaho Code § 72-422 / § 72-428
PPD Calculation
Statutory Maximum Weeks 500 weeks
PPI weeks = WPI% × 500 weeks. Additional disability factors may apply.
Notes
AMA Guides 6th Edition for injuries on or after July 1, 2014.
Frequently Asked Questions
Which edition of the AMA Guides does Idaho use?
Idaho uses the 6th Edition of the AMA Guides to the Evaluation of Permanent Impairment under Idaho Code § 72-422 / § 72-428. 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 Idaho?
PPI weeks = WPI% × 500 weeks. Additional disability factors may apply.
Where can I find a certified impairment rater in Idaho?
Browse our directory of certified impairment raters listed for Idaho. 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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