Ohio Impairment Rating Guide
Ohio workers' compensation references the AMA Guides as one factor in determining permanent impairment under Ohio Rev. Code Rule 4123.38, Rule 4121-3-34 ... Ohio Industrial Commission Medical Examination Manual.
Which Edition?
AMA Guides Edition Hybrid (AMA + Other Factors)
Statutory Authority
Ohio Rev. Code Rule 4123.38, Rule 4121-3-34 ... Ohio Industrial Commission Medical Examination Manual(opens in a new tab)
PPD Calculation
Statutory Maximum Weeks 200 weeks
Ohio generally uses the AMA Guides Fifth Edition for whole-person impairment ratings, with specialty-specific exceptions in the Industrial Commission Medical Examination Manual (including Fourth Edition for ophthalmology). Percentage PPD awards are based on the determined permanent partial disability percentage multiplied by a 200-week statutory base; scheduled-loss benefits are separately governed by R.C. § 4123.57(B).
Notes
AMA Guides Fifth Edition generally; Fourth Edition for ophthalmology; Commission-specific methodology for certain mental/behavioral ratings
Frequently Asked Questions
How does Ohio use the AMA Guides for impairment rating?
Ohio references the AMA Guides as one factor in determining permanent impairment under Ohio Rev. Code Rule 4123.38, Rule 4121-3-34 ... Ohio Industrial Commission Medical Examination Manual. The statutory framework considers additional factors beyond the AMA rating alone — see the notes below for details.
How is permanent partial disability calculated in Ohio?
Ohio generally uses the AMA Guides Fifth Edition for whole-person impairment ratings, with specialty-specific exceptions in the Industrial Commission Medical Examination Manual (including Fourth Edition for ophthalmology). Percentage PPD awards are based on the determined permanent partial disability percentage multiplied by a 200-week statutory base; scheduled-loss benefits are separately governed by R.C. § 4123.57(B).
Where can I find a certified impairment rater in Ohio?
Browse our directory of certified impairment raters listed for Ohio. 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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