Evidence Checklist: Parkinson's Disease

Neurologist evaluation documenting motor features and UPDRS scoreCritical

A movement disorder specialist's evaluation documenting the cardinal features of Parkinson's (resting tremor, rigidity, bradykinesia, postural instability) and Unified Parkinson's Disease Rating Scale (UPDRS) score.

DaTscan or SPECT imaging showing dopamine transporter deficit

Nuclear medicine imaging showing reduced dopamine transporter uptake in the striatum, which distinguishes Parkinson's from essential tremor and supports the diagnosis.

Nexus opinion or Agent Orange/burn pit presumptive documentationCritical

Parkinson's disease is a VA-recognized presumptive condition for veterans exposed to Agent Orange/herbicides. Document qualifying service locations. Otherwise, obtain a nexus opinion.

Functional assessment documenting ADL limitations

Occupational therapy evaluation or treating physician statement documenting limitations in activities of daily living caused by tremor, rigidity, and bradykinesia.

Treatment records (levodopa, dopamine agonists, DBS)

Records documenting medication regimen, on/off motor fluctuations, response to levodopa, and any deep brain stimulation (DBS) procedure.

Buddy statement from spouse, family, or fellow service member

A written statement from someone who can describe observable symptoms and how your condition affects daily life.

Personal statement describing symptoms and functional impact

Your own written account of how this condition affects your daily activities, work, and relationships. Describe your worst days.

Completed DBQ Parkinson's DiseaseCritical

VA standardized form for Parkinson's capturing motor symptoms, cognition, and functional status for rating under DC 8004.

Service treatment records (STRs)Critical

Military medical records showing in-service treatment, complaints, or injuries related to this condition.