Claiming Progressive Supranuclear Palsy as a VA Disability

Progressive Supranuclear Palsy (PSP) is a life-altering brain disorder that affects your movement, balance, speech, and vision. While it shares many symptoms with Parkinson’s disease, it is much less common and not specifically listed as a presumptive condition. 

However, the VA often recognizes it as a form of atypical parkinsonism linked to Agent Orange exposure. With the right evidence and an expert medical opinion, veterans can establish service connection for PSP and win VA disability benefits.

PSP vs Parkinson’s

Progressive supranuclear palsy is a brain disorder that affects movement, control of walking and balance, speech, swallowing, vision, mood and behavior, and thinking.  This disease is caused by damage to nerve cells in the brain. Symptoms of PSP include:

• Loss of balance while walking (this is the most common symptom that is first noticed) 
• Blurring of vision 
• Problems controlling eye movement (PSP often causes trouble voluntarily shifting your gaze upward and/or downward) 
• Trouble controlling eyelids 
• Inability to maintain eye contact during a conversation 
• Depression 
• Losing interest in ordinary pleasurable activities 
• Increased irritability and forgetfulness 
• Changes in judgment, insight, and problem solving 
• Difficulty finding words 
• Speech becomes slower and slurred 
• Difficulty swallowing solid foods or liquids 

Many symptoms of Progressive Supranuclear Palsy are also symptoms of Parkinson’s disorder. Because of this, PSP is often misdiagnosed as Parkinson’s disease. However, PSP actually progresses faster than Parkinson’s. Other differences between PSP and Parkinson’s include:

• People with PSP usually stand exceptionally straight or tilt their heads backward, and tend to fall backward while people with Parkinson’s usually bend forward.
• Problems with speech and swallowing are more common and more severe with PSP versus Parkinson’s and also tend to present earlier with PSD.
• Tremors are rare with PSP, but are very common with Parkinson’s.
• People with PSP respond minimally and briefly to the drug levodopa, while those with Parkinson’s typically have much more successful responses to the drug.

Because PSP symptoms mirror Parkinson’s disease, the VA often evaluates them using similar criteria. However, Progressive Supranuclear Palsy usually involves more rapid decline and veterans often require higher disability ratings much sooner after their diagnosis. 

VA Ratings for Progressive Supranuclear Palsy

The VA typically rates progressive supranuclear palsy under Diagnostic Code 8004 for Paralysis Agitans, the same one used for Parkinson’s disease. The minimum disability rating is 30%, but this is just the starting point.

Because PSP is a progressive disease that affects multiple body systems, the VA should evaluate the “residuals” or the specific symptoms caused by the condition. This means the total disability rating could be much higher than 30 percent.  

How the VA Evaluates PSP Residuals

• Physical symptoms: This includes inability to walk, frequent falls, and loss of coordination.
• Vision and speech: Ratings can be based on the degree of vision loss or the severity of speech and swallowing impairments.
• Cognitive and emotional issues: If the disease causes dementia or significant changes in behavior, these are rated similarly to other mental health conditions or traumatic brain injuries.

Establishing Service Connection

Connecting PSP to your military service is often the most difficult part of a claim. Many veterans are now finding success by linking their condition to toxic exposure, specifically Agent Orange, but other paths are also open to veterans. The basic direct service connection elements are:

• A current diagnosis of progressive supranuclear palsy
• An in-service event, injury, or exposure (such as Agent Orange)
• A medical link between the two

Is PSP Secondary to TBI or Lead Exposure?

Research has also identified other risk factors that are common in military environments. A 2018 study published in Frontiers in Neurology examined the risk factors for PSP among veterans and found that: 

• Veterans with a history of firearm usage were 3.7 times more likely to develop PSP, suggesting a potential link to lead exposure. 
• There was a weak but notable association between traumatic brain injury (TBI) and the development of PSP, with an odds ratio of 1.6. 
• Over 80% of the PSP cases in the study reported using firearms as part of their military job, compared to about 65 percent in the control group. 

For veterans who served in combat or training roles involving heavy lead exposure or head injuries, such scientific findings can constitute evidence that supports specialists’ opinions linking the diagnosis to service history or toxic exposure. Expert medical opinions often bridge the gap between a denial and a successful claim. 

PSP and Agent Orange

There is ample research that indicates progressive supranuclear palsy is related to exposure to Agent Orange. The National Academy of Sciences’ Committee to Review the Health Effects in Vietnam Veterans of Exposure to Herbicides was charged with determining whether a statistical association between herbicide exposure and parkinsonism existed.

It concluded that the VA presumption for Parkinson’s disease should include all diseases with Parkinson-like symptoms unless it could be definitively established that the veteran’s symptoms are related to an external agent other than herbicides sprayed in Vietnam. 

In its 2018 update, the committee maintained the conclusion that there is suggestive evidence of an association between exposure to Agent Orange and Parkinson’s Disease, including Parkinson-like conditions, in the setting of dementia, multiple system atrophy, and progressive supranuclear palsy. 

More recently, the National Defense Authorization Act for Fiscal Year 2021 added Parkinsonism to the list of conditions presumed to be caused by herbicide exposure. PSP is widely described by medical professionals as atypical parkinsonism, which allows veterans with PSP to win their claims more easily once they establish herbicide exposure according to VA requirements. 

So, if you receive a rating decision that denies service connection for PSP on the basis that it is not a presumptive condition associated with Agent Orange exposure, keep fighting.

Case Examples

Presumed Service Connection for a Navy Veteran

In a case from 2018 (Citation Nr. 1823904), the Board of Veterans Appeals granted service connection for progressive supranuclear palsy for a Navy veteran who served from March 1966 to March 1968. The Regional Office in Hartford, Connecticut had previously denied the claim in December 2016. 

Although the veteran was not formally diagnosed with Parkinson’s disease (a condition presumptively linked to herbicide exposure), the Board relied on private medical records from February 2016 through January 2018 describing PSP as causing Parkinsonism/Parkinsonian syndrome, and a January 2018 record characterizing PSP as a Parkinsonian syndrome closely related to Parkinson’s disease.

The Board also cited the National Academies’ Veterans and Agent Orange: Update 2014, which reported suggestive evidence of an association between herbicide exposure and Parkinson-like conditions such as PSP, and stated PSP should not be excluded absent clear proof of another cause. 

The Board found no evidence that the veteran’s progressive supranuclear palsy was due to another external toxin or a specific genetic condition. Given conceded herbicide exposure, medical evidence tying PSP to Parkinsonian syndromes, and supportive scientific findings, the Board concluded the nexus requirement was met and granted service connection for PSP. 

A 2025 Victory for a Veteran Exposed to Agent Orange at Eglin AFB

In a recent case (Decision Nr. 2500951 from 07/23/2025), the Board of Veterans Appeals granted service connection for progressive supranuclear palsy for a veteran who claimed Agent Orange exposure while at Eglin Air Force Base. 

The veteran, who served from December 1972 to August 1973, had been denied service connection in 2013 and had been remanded twice by the Board for additional development, including attempts to verify toxic exposures and obtain an addendum medical opinion.

The Board found a current PSP diagnosis confirmed by a February 2020 VA examination and accepted that PSP is a form of atypical parkinsonism. Because the National Defense Authorization Act for Fiscal Year 2021 added “Parkinsonism” to the herbicide presumptive statute, the key dispute became whether the veteran had herbicide exposure during service, specifically during survival training at Eglin AFB.

Although personnel records did not document Eglin duty, the Board found credible the veteran’s account of travel from Pensacola NAS for survival training, supported by March 2014 buddy statements (including one from a retired Rear Admiral and another servicemember who specifically recalled survival training with the veteran at Eglin). 

The Board took into account the veteran’s detailed August 2024 statement describing environmental observations at Eglin (including a “glossy slime” on trees and reliance on local water/food sources), corroboration that trainees lived off the land in a March 2014 buddy statement, documentation that tactical herbicides were used at Eglin AFB from 1952–1969 (consistent with VA/DoD location information), and a supportive VA medical opinion explaining that dioxin (TCDD) persistence/half-life could make exposure during early-1970s training plausible.

Resolving reasonable doubt in the veteran’s favor, the Board held herbicide exposure was shown on a facts-found basis and, because PSP qualified as parkinsonism, granted service connection. 

Getting the Maximum Compensation for PSP

Because PSP is a degenerative condition, a veteran’s needs can change rapidly and a higher VA rating may be possible. There are several ways to increase your disability compensation: 

1. Request an increased rating when symptoms worsen. If PSP is already service connected, an increase is about showing that your current symptoms are more severe than when VA last rated you. 
2. Claim disability for PSP complications. When a service-connected condition causes another disability, or aggravates it, VA can grant secondary service connection. That is how a lot of PSP cases move from a single neurological rating into a much higher combined evaluation.  
3. If you cannot work, pursue VA unemployability. If PSP prevents you from maintaining employment, Total Disability Based on Individual Unemployability can pay at the 100 percent rate. 
4. Special Monthly Compensation. Many veterans with PSP eventually require daily personal aid or experience loss of use of their limbs. In these cases, you may be eligible for Special Monthly Compensation, which provides additional compensation beyond the standard 100 percent disability rate. See how to obtain Aid & Attendance. 

Secondary Conditions to PSP

VA can grant ratings for other related health problems when medical evidence shows they are “proximately due to” PSP or aggravated by PSP. Secondary issues that may come up in PSP cases include depression, swallowing complications, speech limitations, and vision-related functional problems. 

Mental Health, Cognitive and Sleep Conditions

• Neurocognitive disorder (memory, judgment, executive function problems), sometimes framed as dementia-type impairment 
• Adjustment disorder tied to functional losses 
• Depression and anxiety related to chronic neurologic decline or loss of function 
• Insomnia secondary to symptoms, medications, or anxiety/depression 
• Chronic fatigue tied to the overall neurologic decline 
• Sleep disturbance from nighttime rigidity, falls risk, or swallowing issues

Speech and Swallowing Complications

• Dysphagia (difficulty swallowing) and related complications 
• Aspiration pneumonia if food or liquids “go down the wrong pipe” and lead to lung infections 
• Malnutrition or weight loss when swallowing problems limit intake 
• Dehydration if swallowing limits fluid intake

Falls and Orthopedic Injuries from PSP

PSP commonly causes balance problems and falls, which can lead to separately ratable injuries:

• Traumatic brain injury from falls (if documented) 
• Fractures, chronic pain, or post-surgical residuals 
• Shoulder injuries (rotator cuff tears), knee injuries or back injuries caused by falls or abnormal gait 
• Head lacerations or other residual scarring from fall injuries

Vision-related Disabilities

Because PSP often affects eye movement and visual function, veterans may develop diplopia (double vision), impaired eye movement and related functional vision problems. The VA will require evidence such as neuro-ophthalmology records, prism prescription and documentation of functional limitations (driving restrictions, falls related to visual tracking, etc).

Other Complications

• Urinary incontinence
• Constipation and other bowel dysfunction
• Orthostatic hypotension (drop in blood pressure on standing) contributing to falls

Getting 100% Compensation for PSP through VA Unemployability

If your condition prevents you from keeping a regular job, you may qualify for Total Disability Based on Individual Unemployability (TDIU). This allows you to be paid at the 100 percent rate even if your combined rating has not yet reached that level. In PSP cases, the work impact is often tied to issues like: 

• Falls and unsafe balance during standing or walking
• Vision and eye-movement limitations that interfere with driving, reading, screens, or situational awareness
• Speech and swallowing problems that interfere with communication-heavy jobs or safe eating and hydration at work
• Cognitive and mood changes that reduce reliability and productivity

What Are Your Options?

The Schedular Path to TDIU

The most common way to qualify for TDIU is through service connected disabilities that reach specific percentage thresholds. You can qualify in one of two ways:

• You have one single service connected disability rated at 60 percent or higher. 
• You have two or more service connected disabilities with a combined rating of 70 percent or higher, provided that at least one of those disabilities is rated at 40 percent or more. 

When calculating these percentages, the VA can group certain disabilities together to count as one single disability. This includes disabilities that result from a common cause or single accident, those that affect a single body system like the neurological or orthopedic systems, or multiple injuries incurred in action. 

A progressive condition like PSP affects vision, movement, and speech and often involves multiple residuals, so even if the neurological rating isn’t high enough, PSP complications can help qualify for TDIU.

Extra-Schedular TDIU

If your disability ratings do not meet the 60 percent or 70 percent thresholds but you are still unable to work, you can pursue an extra-schedular rating under VA regulations. This path is designed for veterans with an exceptional or unusual disability picture where the standard rating schedule does not accurately reflect their level of impairment. 

To win an extra-schedular claim, your case must be referred to the Director of Compensation Service for a special review. Because these claims do not have a specific percentage requirement, they rely heavily on proving that your specific symptoms make it impossible to hold a job regardless of your official rating. 

What Is the VA Looking for?

TDIU is not about whether you are unemployed. It applies when service-connected conditions prevent you from maintaining substantially gainful employment, meaning work that earns above the federal poverty threshold and is not sheltered or specially accommodated. In PSP claims, you usually win or lose TDIU on practical details like: 

• How often you fall, and whether assistive devices are needed 
• Whether you can safely drive, navigate stairs, or move through a workplace 
• Swallowing studies, speech therapy notes, aspiration risk, diet limitations 
• Cognitive testing or notes describing impaired judgment, slowed processing, or behavior changes 
• Employer accommodations that failed, reduced hours, or repeated absences 

Next Steps

If you have been denied service connection for PSP or feel that your current rating does not reflect the severity of your symptoms, start by reading the rating decision for the exact reason VA denied or lowballed the claim. A VA attorney can pick the appeal lane that matches the problem and help you win the compensation you’re entitled to.