Table 6.

Differences Between AMA Guides 2008 and 2024

AMA Guides 2008	AMA Guides 2024
Identify DBI table	Identify DBI table
Obtain data for functional history, physical examination, and clinical studies	Obtain data (SIEs) for clinical history, physical examination, and relevant clinical studies
Apply the data to grade modifier tables for functional history, physical examination, and clinical studies
Determine grade modifier value for functional history, physical examination, and clinical studies
Apply grade modifier value to the net adjustment formula
Obtain the net adjustment value
Return to the original DBI table and locate the default impairment value for grade C
Apply the net adjustment value to the final grade with the class	Apply the specific individual elements (SIEs) to the diagnostic row
Identify the impairment value based on the final grade	Identify the impairment value based on the correct diagnostic row

DBI = diagnosis-based impairment