Maryland Impairment Rating Guide
Maryland workers' compensation governs permanent impairment rating under Md. Code Lab. & Empl. § 9-721; no specific edition is statutorily required.
Which Edition?
AMA Guides Edition No Statutory Edition
Statutory Authority
Md. Code Lab. & Empl. § 9-721
PPD Calculation
Maryland uses scheduled and unscheduled awards with weeks tiered by severity (Tier 1: <75 weeks; Tier 2: 75–249 weeks; Tier 3: 250+ weeks "serious disability"). Different weekly rates apply per tier.
Notes
No statutory edition mandate; commissioners and physicians commonly reference AMA Guides 4th or 5th. Maryland publishes its own evaluation guidelines.
Frequently Asked Questions
Which impairment rating methodology does Maryland require?
Maryland governs permanent impairment rating under Md. Code Lab. & Empl. § 9-721 but does not statutorily mandate a specific edition of the AMA Guides or other methodology. Rating physicians commonly reference AMA Guides editions, but the choice is not controlled by statute.
How is permanent partial disability calculated in Maryland?
Maryland uses scheduled and unscheduled awards with weeks tiered by severity (Tier 1: <75 weeks; Tier 2: 75–249 weeks; Tier 3: 250+ weeks "serious disability"). Different weekly rates apply per tier.
Where can I find a certified impairment rater in Maryland?
Browse our directory of certified impairment raters listed for Maryland. 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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