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Parkinson's Disease VA Disability Rating is rated by the U.S. Department of Veterans Affairs under DC 8004 of 38 C.F.R. § 4.124a across 3 severity tiers (40%+ -- Severe limitation or ankylosis / 20% -- Moderate limitation / 10% -- Mild limitation or painful motion). Service connection requires (1) a current diagnosis, (2) an in-service event, injury, or exposure, and (3) a medical nexus opinion linking the two under 38 C.F.R. § 3.303.
Parkinson's disease (DC 8004, paralysis agitans) has a minimum rating of 30%. Presumptive for Agent Orange exposure under 38 C.F.R. 3.309(e). Rated on motor and non-motor symptoms. Each residual (tremor, rigidity, gait, cognitive) may be rated separately.
Parkinson's Disease (DC 8004) is evaluated under 38 C.F.R. § 4.124a using the neurological rating framework. Because it is rated by analogy to the general schedule, the 3 levels below describe the body-system criteria the VA applies — the percentage assigned to Parkinson's Disease depends on the specific findings (range of motion, frequency, severity, or functional loss) documented at the C&P exam and in the medical record.
Rating criteria reference 38 C.F.R. Part 4 (Schedule for Rating Disabilities). This entry has not yet undergone editorial review against the live regulation text — consult the authoritative source directly before relying on the criteria shown.