What you have to prove
Meet via: (1) disorganization of motor function in two extremities with extreme limitation, OR (2) marked limitation in one of four mental-functioning areas AND marked limitation in physical functioning, OR (3) significant reproducible fatigue of motor function with substantial muscle weakness on repetitive activity.
Medical evidence SSA expects
MRI showing characteristic lesions, neurologist's records, disease-modifying therapy history, EDSS (Expanded Disability Status Scale) scores, and fatigue documentation.
Common misconceptions
MS relapses alone don't automatically qualify — SSA wants persistent deficits between relapses. Patients in remission on DMTs often struggle with listings but may qualify via Medical-Vocational Allowance for unpredictable flares.
Didn't meet the listing? You can still qualify via a Medical-Vocational
Allowance — SSA's determination that your residual functional capacity, combined with
your age, education, and work history, leaves no jobs you can do. See our
appeals guide for what to do after an initial denial.