Summary: VA disability claims are commonly denied because the evidence does not establish one or more key requirements for service connection. Understanding the reason for a denial, whether it involves a diagnosis, service connection, medical evidence, or another issue, can help veterans determine the appropriate next step.
VA disability claims are commonly denied because the evidence does not establish one or more key elements required for service connection. The most common issues involve a missing current diagnosis, insufficient evidence that a condition began or was caused by military service, or failure to meet the requirements for presumptive service connection.
VA disability claims move through a system operating at enormous scale. The Department of Veterans Affairs reportedthat it processed more than 3 million disability compensation and pension claims in fiscal 2025. For veterans who receive a VA denial, however, the more immediate question is often simpler: Why was this claim denied? One data point helps narrow the answer. In its April 2026 PACT Act Performance Dashboard, VA listed the three most frequent denial reasons for PACT-related disability decisions as no diagnosis, a condition not incurred in or caused by service, and failure to establish a condition through a presumption. Those figures apply specifically to PACT Act claims, but they illustrate how much can depend on the evidence supporting a disability and its connection to military service. VA disability claims may be denied for several reasons, but common issues include:
- No current diagnosis: The evidence does not establish a current physical or mental disability.
- Insufficient evidence of an in-service event: The record does not adequately establish an injury, illness, exposure, or other qualifying event during military service.
- No medical nexus: The evidence does not sufficiently connect the current condition to military service.
- Insufficient evidence for secondary service connection: The evidence does not establish that a claimed secondary condition is linked to an already service-connected disability.
- Failure to meet presumptive requirements: The claimed condition or circumstances do not meet the requirements for presumptive service connection.
- Insufficient evidence of severity: The available evidence may not adequately establish the severity of a service-connected disability or support the requested disability rating.
- Missing a VA examination: Failing to attend a scheduled claim examination can affect how VA decides the claim because the decision may be based on the evidence already available.
For an original service-connected disability claim, VA generally looks for evidenceof three things: a current physical or mental disability, an in-service event, injury, or disease, and a relationship between the two. VA notes that supporting evidence can include medical records, medical opinions, and, in some circumstances, lay evidence such as buddy statements. A denied VA claim therefore does not necessarily mean every part of the veteran's account was rejected. A veteran may have a current diagnosis but insufficient evidence connecting it to service. Another may have service records documenting an event but lack evidence of a current disability. A claimed condition may also fail to meet the requirements for presumptive service connection.
Eric Gang is a veterans disability attorney and founder of Gang & Associates, a law firm focused exclusively on helping veterans obtain the VA disability benefits they have earned through service. Eric Gang represents veterans nationwide in VA disability claims and appeals, including cases before the Board of Veterans' Appeals and the U.S. Court of Appeals for Veterans Claims. His practice includes complex VA disability claims involving PTSD, traumatic brain injuries, toxic exposure, and secondary service-connected disabilities. Image Credit: Gang & Associates According to veterans disability attorney Eric Gang, veterans should examine a VA denial closely to identify the specific evidentiary issue that led to the decision rather than automatically treating the denial as the end of the process. The practical question may involve whether the record adequately establishes a diagnosis, service connection, disability severity, or another required element.
For secondary service connection, VA explains that veterans generally need evidence of a new condition and a link between that condition and an already service-connected disability. A medical nexus, sometimes addressed through a nexus letter or independent medical opinion (IMO), may help explain that relationship, although the value of an opinion can depend on its reasoning and supporting evidence. Veterans may also need to examine VA medical evidence, private treatment records, service treatment records, and lay statements. VA further advises that missing a scheduled claim examinationmay affect the claim because VA can decide it using the evidence already available. ASupplemental Claimallows a veteran to submit new and relevant evidence. AHigher-Level Reviewuses the existing record and does not allow new evidence. A Board Appealtakes the case to a Veterans Law Judge, with options that can include direct review, evidence submission, or a hearing. Timing may also matter. According to VA's decision-review guidance, veterans generally have one year from the decision date to request Higher-Level Review or a Board Appeal. A Supplemental Claim may be filed later, although filing within one year can be important for preserving an effective date and potentially affecting VA back pay. VA disability claims involving PTSD, traumatic brain injury (TBI), Military Sexual Trauma (MST), toxic exposure, burn pits, Agent Orange, Gulf War illness, Total Disability Individual Unemployability (TDIU), or disputed disability ratings can involve different evidentiary requirements. The PACT Act expanded presumptionsfor certain toxic-exposure conditions, although eligibility requirements continue to apply. The central lesson for veterans facing a VA disability denial is to understand exactly why the claim was denied and what evidence or review option may address that specific issue. Depending on the circumstances, the next step may involve additional medical evidence, a Supplemental Claim, Higher-Level Review, or Board Appeal. For veterans dealing with complex claims, disputed disability ratings, or repeated denials, an experienced veterans disability attorney can help evaluate the available options.