Designed for all disability professionals--from physicians and lawyers to public policymakers--learn how the new edition will change the way physicians evaluate impairment and disability. This resource helps readers learn to determine causation, provides greater guidance on pain assessment, and offers clarification on difficult conditions and complicated cases not addressed in "The Guides. Includes implications for the legal, regulatory and reimbursement systems. Divided into two sections: part one offers a comprehenisve chapter-by-chapter comparision of the content between editions; part two focuses on practical applications like records and reporting.