There is no fixed list of medical conditions that qualify for VA disability benefits. Almost any current physical injury, chronic illness, or mental health condition can be service-connected, as long as you can show a diagnosis, an event or exposure during service, and a medical link between the two. The VA evaluates claims against a rating schedule covering 15 body systems, from musculoskeletal injuries to mental disorders.1eCFR. 38 CFR Part 4 – Schedule for Rating Disabilities For veterans in certain groups, the VA presumes the link automatically for a defined list of conditions.
The Three Things Every Claim Needs
Whatever your condition, the VA looks for the same three elements. You need a current medical diagnosis. You need evidence of something during service that could have caused it, whether an injury, an illness, or a toxic exposure. And you need a medical opinion tying the two together, known as a nexus.2Veterans Affairs. Eligibility for VA Disability Benefits Miss any one of the three and the claim fails, no matter how severe the condition. The exception is presumptive conditions, discussed below, where the VA supplies the nexus for you.
Physical Conditions
The VA’s rating schedule reaches essentially every organ system and body structure. Musculoskeletal injuries drive many claims: degenerative disc disease, knee damage, shoulder tears, and joint problems from years of physical exertion. Hearing loss and tinnitus are among the most frequently filed claims across all eras of service. Respiratory conditions such as asthma, COPD, and chronic sinusitis qualify, particularly for veterans exposed to airborne hazards.
Traumatic brain injuries from blast exposure or blunt force qualify, rated on symptoms like memory loss, headaches, and impaired concentration. Scars from combat wounds or surgical procedures are separately ratable. Cardiovascular disease, digestive disorders, skin conditions, and cancers can all be service-connected when the evidence supports it. The condition does not have to be dramatic or combat-related. A knee worn down by years of running in boots qualifies just as readily as a gunshot wound.
Mental Health Conditions
Post-traumatic stress disorder is the most familiar mental health claim, but far from the only one. Clinical depression, generalized anxiety disorder, bipolar disorder, and adjustment disorders all qualify. The VA rates these conditions based on how much they interfere with your work and social functioning, not simply on the diagnosis itself.
PTSD claims carry a slightly different evidentiary standard. You need a current diagnosis, a stressor event during service, and a link between the two. For combat veterans, the VA is more lenient about verifying the stressor. For claims based on military sexual trauma, the VA accepts a wider range of corroborating evidence because these events often go unreported.
Pre-Existing Conditions Made Worse by Service
If you entered service with a condition and it got worse during your time in uniform, you can file a claim based on the degree of worsening. The law presumes that if a pre-existing condition became more severe during service, the service caused the aggravation. The VA can only deny that claim with clear and unmistakable evidence that the worsening was due to the condition’s natural progression.3eCFR. 38 CFR 3.306 – Aggravation of Preservice Disability
Presumptive Conditions: When the VA Assumes the Link
For certain veterans, the VA removes the hardest part of the claim by presuming that specific diseases were caused by service. You still need the diagnosis, but you do not need an individual medical opinion tying it to a particular event.4eCFR. 38 CFR 3.309 – Disease Subject to Presumptive Service Connection For chronic diseases generally, the condition must appear to a compensable degree within one year of separation, with longer windows for a handful of illnesses: three years for tuberculosis and Hansen’s disease, and seven years for multiple sclerosis.5eCFR. 38 CFR 3.307 – Presumptive Service Connection – Chronic, Tropical, and POW-Related Disease
Agent Orange
Veterans exposed to herbicide agents during service in Vietnam and other specified locations qualify for presumptive service connection for a long list of conditions. The most commonly claimed include Type 2 diabetes, Parkinson’s disease, prostate cancer, and several types of lymphoma.4eCFR. 38 CFR 3.309 – Disease Subject to Presumptive Service Connection No nexus letter is required.
Gulf War Illness
Veterans who served in Southwest Asia qualify for presumptive service connection for medically unexplained chronic multisymptom illnesses, including chronic fatigue syndrome, fibromyalgia, and functional gastrointestinal disorders. The VA also presumes service connection for undiagnosed illnesses causing symptoms like joint pain, headaches, and cardiovascular problems, so long as the condition has lasted at least six months.6Veterans Affairs. Gulf War Illnesses Linked to Southwest Asia Service Certain infectious diseases such as Q fever and tuberculosis also qualify under separate timeframe rules.
Burn Pits and the PACT Act
The PACT Act added more than 20 presumptive conditions for veterans exposed to burn pits and other toxic substances during Gulf War era and post-9/11 service.7Veterans Affairs. The PACT Act and Your VA Benefits The presumptive list falls into two broad categories:
- Cancers, including brain, kidney, pancreatic, melanoma, reproductive, respiratory, gastrointestinal, bladder, lymphomas, and leukemias.
- Respiratory conditions, including asthma diagnosed after service, chronic bronchitis, COPD, emphysema, pulmonary fibrosis, constrictive bronchiolitis, chronic sinusitis, chronic rhinitis, and sarcoidosis.
The full list covers more than two dozen cancers along with a range of respiratory and other conditions.8Veterans Affairs. Airborne Hazards and Burn Pit Exposures The PACT Act also expanded VA health care eligibility for any veteran exposed to toxins during service, whether or not they file a disability claim.
Secondary Conditions Caused by an Existing Disability
A condition that was caused or worsened by an already service-connected disability qualifies for compensation on the same terms as the primary condition. The regulation is direct: if a disability results from a service-connected disease or injury, it becomes service-connected too.9eCFR. 38 CFR 3.310 – Disabilities That Are Proximately Due to, or Aggravated by, Service-Connected Disease or Injury
This is where many veterans miss compensation they are owed. Common secondary claims include depression stemming from chronic pain of a service-connected back injury, hypertension worsened by service-connected sleep apnea, and nerve damage in the legs stemming from a service-connected spinal condition. Each secondary condition receives its own rating, which raises the combined disability percentage and the monthly payment. The claim needs a medical opinion showing the second condition flows from the first.
The same logic covers mental health conditions arising from a physical disability. A veteran with chronic pain from a service-connected back injury who develops depression is not simply coping. That depression is a separately ratable condition.
Who Is Eligible in the First Place
Qualifying service means active duty, active duty for training, or inactive duty training. Your discharge cannot be dishonorable, but the rules are more flexible than many veterans assume. Effective June 25, 2024, the VA updated its regulations to expand access for some veterans with other-than-honorable or bad conduct discharges, particularly where the discharge was connected to PTSD, traumatic brain injury, military sexual trauma, or sexual orientation.10U.S. Department of Veterans Affairs. Applying for Benefits and Your Character of Discharge If your discharge is less than honorable, you can apply for a discharge upgrade or request a VA Character of Discharge review to determine whether you still qualify.11Veterans Affairs. How to Apply for a Discharge Upgrade
Filing and Getting Help
Once you have identified the conditions you want to claim, the formal application is VA Form 21-526EZ, which you can submit online, by mail, or in person at a regional office.12Veterans Affairs. File for Disability Compensation With VA Form 21-526EZ Before filing, consider submitting an Intent to File (VA Form 21-0966). That step preserves an earlier effective date for back pay while you spend up to a year gathering evidence.13Veterans Affairs. Submit an Intent to File
You do not have to handle any of this on your own. Accredited representatives from Veterans Service Organizations such as the American Legion, Disabled American Veterans, and Veterans of Foreign Wars provide free help with claims, evidence gathering, and appeals.14Veterans Affairs. Get Help From a VA Accredited Representative or VSO Accredited attorneys and claims agents can also represent you, though they may charge for their services.