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November 1, 1983

Rating neurologic impairment in multiple sclerosis
An expanded disability status scale (EDSS)

November 1983 issue
33 (11) 1444


One method of evaluating the degree of neurologic impairment in MS has been the combination of grades (0 = normal to 5 or 6 = maximal impairment) within 8 Functional Systems (FS) and an overall Disability Status Scale (DSS) that had steps from 0 (normal) to 10 (death due to MS). A new Expanded Disability Status Scale (EDSS) is presented, with each of the former steps (1,2,3 … 9) now divided into two (1.0, 1.5, 2.0 … 9.5). The lower portion is obligatorily defined by Functional System grades. The FS are Pyramidal, Cerebellar, Brain Stem, Sensory, Bowel & Bladder, Visual, Cerebral, and Other; the Sensory and Bowel & Bladder Systems have been revised. Patterns of FS and relations of FS by type and grade to the DSS are demonstrated.

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Published In

Volume 33Number 11November 1983
Pages: 1444
PubMed: 6685237

Publication History

Published online: November 1, 1983
Published in print: November 1983


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Affiliations & Disclosures

John F. Kurtzke, MD
Neurology Service, Veterans Administration Medical Center and Departments of Neurology and of Community Medicine, Georgetown University School of Medicine, Washington, DC.

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