Listing 11.06 · Neurological disorders
Parkinsonian syndrome
To be approved under this listing, a claim must meet any one of the criteria below — and the medical records have to prove it.
- A
Disorganization of motor function in two extremities, despite adherence to treatment for ≥3 months.
In plain terms: Despite Parkinson's treatment, do you have severe movement problems in two limbs — tremor, rigidity, or balance trouble — that limit standing or walking or using your arms?
Evidence required:Treating physician report - B
Marked limitation in physical functioning AND in one mental area despite ≥3 months treatment.
In plain terms: Despite treatment, has Parkinson's significantly affected both your body and your mind — memory, attention, mood?
Evidence required:RFC (residual functional capacity) assessment
Estimate the odds
Historical approval rates for a claim like this — by state, age, and stage.
Approval odds by condition
How claims for this body system fare through the process.
Other neurological disorders listings
Source: SSA Listing of Impairments (Blue Book), 20 CFR Part 404, Subpart P, Appendix 1 · Updated 2026-07-31. Criteria paraphrased for readability; see the official SSA text linked above. Not legal or medical advice — whether a specific medical record meets Listing 11.06 is an individualized judgment SSA makes on the evidence.