Parkinson’s Disease Disability Benefits Questionnaire: VA Ratings

The Parkinson’s Disease Disability Benefits Questionnaire is the standardized medical form a VA or VA-contracted clinician fills out to document a veteran’s Parkinson’s symptoms, and the answers on that form become the central evidence the VA uses to assign a disability rating. The current version was updated on September 29, 2025 and carries the internal code “v25_2.”¹ Once service connection is established, the form’s findings determine whether you stay at the 30 percent minimum for Parkinson’s disease or receive a higher combined rating built from the individual systems the disease has affected.

What the DBQ Documents

The form is far more detailed than a diagnosis confirmation. It opens by asking the provider to specify which condition the veteran has: Parkinson’s disease, Parkinsonism, multiple system atrophy, progressive supranuclear palsy, corticobasal degeneration, or a related disorder, along with the ICD code, date of diagnosis, and a summary of onset and course.¹

Most of the form documents motor symptoms. The provider records the presence, affected side, and severity of facial masking (hypomimia), stooped posture, balance impairment, bradykinesia and freezing, tremors, and muscle rigidity. Objective testing accompanies these observations: muscle strength on a 0-to-5 scale for specific muscle groups, reflexes graded 0 to 4+, gait abnormalities, and any muscle atrophy measured in centimeters.¹

The systemic sections capture everything else Parkinson’s disease can affect. Digestive findings include chewing and swallowing dysfunction, esophageal stricture, constipation, bloating, and sphincter control, with imaging required for certain items. Urinary questions cover leakage, frequency, obstructive voiding, and recurrent urinary tract infections. The form also asks about speech changes, loss of smell or taste, sleep disturbances, and sexual dysfunction. If the provider sees depression, cognitive impairment, or dementia, a separate Mental Disorders Questionnaire is required.¹

The closing sections turn to functional impact. The provider notes any assistive devices you use and how often, indicates whether your impairment is equivalent to amputation with prosthesis, and describes how the condition affects occupational tasks like standing, walking, lifting, and sitting. This section is completed regardless of your current employment status.¹

Who Completes the Form

The Parkinson’s Disease DBQ is not on the VA’s public list of downloadable questionnaires. The VA hosts dozens of DBQs that private providers can complete, but the Parkinson’s form is not among them.² On April 2, 2020, the Veterans Benefits Administration pulled public access to many DBQs, citing outdated forms, fraud concerns, and expanded internal examination capacity.³

In practice, the Parkinson’s DBQ is completed through a VA Compensation and Pension examination by a VA clinician or a VA-contracted examiner. The VA still accepts private medical evidence to support your claim, and if a private provider does submit a DBQ, it must be based on an in-person examination.³ The VA also reserves the right to verify the form’s authenticity and to request additional medical information or a follow-up exam if the initial evidence is not enough.¹

How the DBQ Translates Into a Rating

Parkinson’s disease is rated under Diagnostic Code 8004 (Paralysis Agitans) in 38 CFR § 4.124a. Any veteran with service connection for Parkinson’s disease receives an automatic minimum rating of 30 percent, no matter how mild the symptoms.⁴ A rating below 30 percent for service-connected Parkinson’s disease is considered a rating error.⁵

DC 8004 has no escalating tiers at 50, 70, or 100 percent for the disease itself. Once symptoms become more pronounced, the VA rates each affected body system separately under its own diagnostic code and combines them. You receive whichever is higher: the 30 percent floor or the combined rating.⁶ This is why every detail the DBQ captures matters. Common diagnostic codes used for Parkinson’s residuals include:

DC 8513 (all radicular groups) for upper extremity impairment
DC 8520 (sciatic nerve) for lower extremity impairment
DC 8210 (9th cranial nerve) for dysphagia or dysarthria
DC 8207 (7th cranial nerve) for facial muscle dysfunction
DC 9327 (organic mental disorder) for cognitive impairment or dementia
DC 7542 (neurogenic bladder) for bladder incontinence
DC 7332 (rectum and anus) for impairment of sphincter control

Veterans with advanced Parkinson’s affecting multiple body systems can reach a 100 percent combined evaluation through these separate ratings.⁵ As of March 2026, the DC 8004 entry itself remains unchanged, reading simply “8004 Paralysis agitans: Minimum rating 30.”⁴

Total Disability Based on Individual Unemployability

If Parkinson’s disease keeps you from working but your combined rating is below 100 percent, you may qualify for Total Disability based on Individual Unemployability (TDIU), which pays at the 100 percent rate. The schedular pathway under 38 CFR § 4.16(a) requires one condition rated at least 60 percent, or two or more conditions combining to 70 percent with at least one at 40 percent or higher. The extraschedular pathway under 38 CFR § 4.16(b) is available when those thresholds are not met but the veteran can still show that service-connected conditions prevent substantially gainful employment.⁶

Special Monthly Compensation

Veterans with advanced Parkinson’s who need daily help with eating, dressing, or bathing may qualify for Special Monthly Compensation at the Aid and Attendance level, a tax-free benefit paid on top of standard disability compensation.⁷ As of December 1, 2025, the SMC-L rate for a veteran with no dependents is $4,900.83 per month. Eligibility rests on functional limitations rather than diagnosis: falls, severe balance impairment, and the inability to perform daily tasks independently are the types of findings that support an SMC claim.⁸

Secondary Conditions the DBQ Can Support

Parkinson’s disease produces complications well beyond the core motor symptoms, and the VA allows separate ratings for these secondary conditions. Board of Veterans’ Appeals decisions show how broad this can be.

In one BVA decision, the Board granted service connection for peripheral neuropathy in all four extremities, dementia, ADHD with anxiety, severe depression, sleep apnea, and erectile dysfunction as secondary to Parkinson’s disease. Falls and balance difficulty also contributed to the finding that the veteran required aid and attendance.⁹

A 2025 BVA decision granted service connection for generalized anxiety and depression, cognitive issues including short-term memory loss and dementia, left-hand tremors, tingling in the feet, balance impairment, muscle rigidity, bradykinesia, muscle cramps, dysphagia, fatigue, increased sweating, voice changes, erectile dysfunction, and constipation as secondary to Parkinson’s disease. The Board also linked sleep apnea to the psychiatric medications prescribed for the veteran’s Parkinson’s-related anxiety and depression. The Board emphasized that lay evidence, meaning a veteran’s own testimony about symptoms, is competent evidence when it reports a contemporaneous diagnosis or describes symptoms a medical professional later confirms. Separate evaluations for manifestations of Parkinson’s disease are permitted so long as they do not constitute “pyramiding,” the prohibited practice of compensating the same symptom under multiple diagnostic codes.¹⁰

Preparing for the C&P Exam

The Compensation and Pension exam is where the DBQ actually gets filled out. The examiner assesses the full range of motor, systemic, and functional symptoms and decides whether it is “at least as likely as not” that your condition is connected to military service, along with how the disease affects your daily functioning and ability to work.⁶

Attend the exam. Failing to appear without rescheduling can result in a claim denial.¹¹ Before the appointment, think carefully about how your symptoms actually affect daily life and your ability to work, because communicating specific functional limitations is what shapes the examiner’s answers on the form.⁶ The VA then reviews the completed DBQ alongside your service treatment records, private medical records, and any lay statements you submit.¹

Establishing Service Connection

None of the rating discussion matters until service connection is established. Two presumptive pathways remove the need to prove a direct causal link, and a direct-connection route exists for everyone else.

Agent Orange and Herbicide Exposure

The VA has recognized Parkinson’s disease as a presumptive service-connected condition tied to Agent Orange and other herbicides since October 30, 2010. Veterans who served in Vietnam or the Korean demilitarized zone during periods of herbicide use do not need to prove a connection between the disease and their service. The scientific basis was the National Academies’ 2008 report, which found “suggestive but limited evidence” of an association between herbicide exposure and Parkinson’s disease.¹²

In June 2021, the VA expanded coverage to “atypical Parkinsonism,” a group of diseases with Parkinson’s-like symptoms that do not respond well to drug treatment. The expansion explicitly covers Parkinson’s disease dementia, dementia with Lewy bodies, and multiple system atrophy, among other conditions. Vietnam-era veterans previously denied for Parkinsonism became eligible for automatic case review without filing new claims.¹³

Camp Lejeune Water Contamination

Parkinson’s disease is a presumptive condition for veterans who served at Marine Corps Base Camp Lejeune or MCAS New River for at least 30 cumulative days between August 1, 1953, and December 31, 1987.¹⁴ Eligible veterans need only military records confirming the service requirement and medical records confirming the diagnosis.

The Camp Lejeune Justice Act of 2022, part of the PACT Act, also allows affected veterans to pursue legal relief through the Department of the Navy or federal lawsuits. Filing for that relief does not affect VA disability eligibility, though court-awarded damages may be offset by VA benefits already received for the same condition unless the claimant uses the Navy’s elective settlement option.¹⁴

Direct Service Connection

Research has linked Parkinson’s disease to traumatic brain injury. A 2018 study from the San Francisco VA Medical Center and the University of California found that veterans with a history of mild TBI had a 56 percent greater risk of developing Parkinson’s disease than those without TBI history.¹⁵ For veterans whose Parkinson’s does not fall under a presumptive category, a direct service connection claim requires a current diagnosis, evidence of an in-service injury or event, and a medical nexus opinion linking the two.¹¹

One boundary worth noting: the PACT Act of 2022 added more than 20 new presumptive conditions for burn pit and toxic exposure, but Parkinson’s disease was not among them, because it was already covered through the existing Agent Orange and Camp Lejeune pathways.¹⁶

If Your Claim Is Denied

The most common reasons for denial of Parkinson’s disease claims are failure to attend a scheduled C&P exam, failure to establish service connection, and insufficient medical evidence. A valid claim requires a current diagnosis or documented symptoms of Parkinsonism, an in-service injury or event, and a medical nexus linking the two, though the nexus is waived under a presumptive pathway.¹¹

File appeals on time. A timely appeal preserves your original effective date, which means you can collect retroactive benefits for the appeal period if you win. The denial letter specifies the deadline, and missing it can forfeit those backdated benefits.¹¹ A Veterans Service Organization, an accredited claims agent, or an attorney can help you through the process. If the C&P results were unfavorable, request a copy of the findings to check for errors, consider an independent medical opinion, and submit lay statements adding context about how the disease affects your daily life.⁶ Federal law prohibits charging a fee to assist with a VA benefits application, so work only with accredited representatives. Organizations such as the Veterans of Foreign Wars and Disabled American Veterans offer pro bono representation.¹⁷

1
U.S. Department of Veterans Affairs. Parkinson’s Disease Disability Benefits Questionnaire
2
U.S. Department of Veterans Affairs. Public Disability Benefits Questionnaires
3
GovDelivery. VBA Disability Benefits Questionnaires Update
4
eCFR. 38 CFR 4.124a – Schedule of Ratings, Neurological Conditions
5
Stateside Legal. Parkinson’s Disease Concise VA Analysis
6
CCK Law. Parkinson’s Disease and Veteran Disability Compensation
7
MyArmyBenefits. VA Special Monthly Compensation
8
U.S. Department of Veterans Affairs. Special Monthly Compensation Rates
9
Board of Veterans’ Appeals. BVA Decision, Citation Nr. 21008490
10
Board of Veterans’ Appeals. BVA Decision, Citation Nr. A25033460
11
APDA. VA Benefits for Parkinson’s Disease
12
VA Public Health. Parkinson’s Disease and Agent Orange
13
The Michael J. Fox Foundation. US Department of Veterans Affairs Expands Benefits for People With Parkinsonism Associated With Agent Orange
14
U.S. Department of Veterans Affairs. Camp Lejeune Water Contamination
15
VA Research. Parkinson’s Disease Research
16
U.S. Department of Veterans Affairs. The PACT Act and Your VA Benefits
17
Parkinson’s Foundation. Veterans Benefits