About this condition
Parkinson’s disease (PD) is a chronic, progressive neurological disorder primarily affecting the dopamine-producing neurons in the substantia nigra. Symptoms include resting tremor, bradykinesia (slowness of movement), rigidity, postural instability, and a range of non-motor symptoms: cognitive impairment, sleep disorders, depression, anxiety, autonomic dysfunction.
Listing 11.06 — parkinsonian syndrome — provides two evaluation paths similar to the MS Listing: (1) disorganization of motor function in two extremities, OR (2) marked physical limitation plus marked limitation in one area of mental functioning. The on-medication state vs. off-medication state distinction matters: many PD patients function reasonably well shortly after a dose of carbidopa-levodopa but deteriorate as the medication wears off. The case is often won on documenting the off-state, not the on-state.
What the SSA Listing requires (Listing 11.06)
What wins this case at hearing in Colorado
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Movement-disorder neurologist records
Records from a fellowship-trained movement-disorder specialist — not a general neurologist — carry the strongest weight for PD claims. Include UPDRS (Unified Parkinson’s Disease Rating Scale) scores over time showing progression.
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Medication regimen and response documentation
Detailed records of carbidopa-levodopa, MAO-B inhibitors, dopamine agonists, and other PD medications — including dyskinesia onset, on/off fluctuations, and any deep brain stimulation history. The motor response pattern is central to the disability analysis.
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Cognitive assessment
Neuropsychological testing documenting any cognitive impact — particularly executive function, processing speed, or visuospatial deficits. Up to 40% of PD patients develop significant cognitive impairment; this evidence is often missing from medical records but crucial for the claim.
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Functional capacity statement
Movement-disorder neurologist’s structured opinion about workday functioning during off-states — sustained sitting, fine-motor tasks (typing, writing), fall risk, fatigue, and unpredictable freezing or dyskinesia episodes.
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Non-motor symptom records
Documentation of REM sleep behavior disorder, depression, anxiety, autonomic dysfunction, orthostatic hypotension, or hallucinations from PD medications. Non-motor symptoms often determine workplace functionality more than the motor symptoms.
Colorado-specific factors
Colorado has excellent PD care infrastructure: UCHealth Anschutz Movement Disorders Clinic, Colorado Neurological Institute, and Kaiser Permanente movement-disorder services. The Denver-area Parkinson Association of the Rockies maintains support resources that often correlate with strong patient-engagement documentation in medical records.
ALJs at the Denver Hearing Office see PD claims regularly and tend to credit movement-disorder neurologist opinions. The motor symptoms are visually apparent at hearing — claimant testimony combined with the medical record is typically persuasive when the off-state limits are well-documented.
What disqualifies a claim (honestly)
PD cases that may need additional documentation: early-stage Parkinson’s (Hoehn-Yahr stage 1 or 2) with good medication response and continued ability to work modified duty; PD diagnosis without movement-disorder specialist confirmation; cases where on-state functioning is good and off-state limits aren’t documented. These can still win at hearing but require careful case-building.
Frequently asked questions about SSDI for Parkinson’s Disease in Colorado
I was just diagnosed with Parkinson's. When should I apply for SSDI?
Apply when you can no longer sustain full-time competitive work — not before, not significantly after. Early-stage PD with good medication response often allows continued work for several years. The right time to apply is when motor or non-motor symptoms cross the threshold of preventing sustained employment, usually with worsening off-state symptoms or cognitive decline. Don’t wait until you’re obviously catastrophic; do apply at the point where work becomes genuinely unsustainable.
My medication helps when I take it. Doesn't that mean I can work?
Not necessarily. SSA’s analysis looks at sustained functioning across an 8-hour workday, 5 days a week. PD patients often have on-state windows of 3-4 hours but then experience medication-wearing-off symptoms, dyskinesias, or fluctuating cognitive function. If you can’t sustain consistent function across a full workweek, the on-state windows aren’t enough to disqualify the claim.
Does Compassionate Allowance apply to Parkinson's?
Standard Parkinson’s disease is not on the Compassionate Allowance list. However, related conditions are: Adult Onset Huntington Disease, Progressive Supranuclear Palsy, Corticobasal Degeneration, and Multiple System Atrophy. If your diagnosis was revised to one of these conditions, the case qualifies for fast-track evaluation.
Will the firm take a Parkinson's case?
Yes. Parkinson’s and other movement disorders are a core case type. We work with treating movement-disorder specialists to develop the record and have a track record of approvals at the Denver and Colorado Springs hearing offices. William personally handles each case.