Conceding exposure and granting service connection are two separate legal steps, and this is the source of the confusing language. A decision letter can contain multiple findings that address different legal tests, and sometimes those findings come from different parts of the file or different reviewers, which is why the wording can look contradictory.
For radiogenic diseases like brain tumors, VA does not automatically grant service connection just because radiation exposure occurred. Under 38 CFR 3.311, when a veteran has a condition on the radiogenic disease list and exposure is conceded, VA is required to send the case for a dose estimate and then have it reviewed to determine whether it is at least as likely as not that the disease resulted from that exposure. If VA's internal reviewer or a Veterans Health Administration medical opinion concludes the estimated dose was too low to have plausibly caused the cancer, the claim can still be denied even though exposure itself was never in dispute. Separately, some conditions and exposures (including certain toxic exposures like burn pits, and specific presumptive radiation-exposed veteran categories) fall under 38 CFR 3.309 or under the PACT Act's toxic exposure presumptions, which use a different, sometimes more veteran-favorable, standard. A denial letter may reference records confirming exposure for PACT Act or toxic substance purposes while separately concluding that the specific radiogenic disease review under 3.311 did not support a causal link, producing exactly the kind of split language described.
Official 2026 VA monthly compensation, including the 2.8% COLA increase.
Dependent add-ons start at a 30% rating. Child-only and dependent-parent rates: see the full 2026 pay chart.
| Rating | Monthly (2026, incl. 2.8% COLA) |
|---|---|
| 10% | $180.42 |
| 20% | $356.66 |
| 30% | $552.47 |
| 40% | $795.84 |
| 50% | $1,132.90 |
| 60% | $1,435.02 |
| 70% | $1,808.45 |
| 80% | $2,102.15 |
| 90% | $2,362.30 |
| 100% | $3,938.58 |
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Analyze my claim free →The practical issue is almost always the nexus determination, not the exposure finding. Exposure being conceded only satisfies one of the three elements of service connection (current disability, in-service event/exposure, and medical nexus). If the internal dose reassessment or medical opinion did not connect the exposure to the specific type of tumor, the claim fails on the nexus element even with exposure conceded.
Because glioblastoma claims involving conceded radiation exposure often turn on how the dose estimate and medical nexus opinion were written, it is worth requesting the complete claims file (C-file) through a records request, having a VSO or accredited attorney review the 3.311 worksheet and any medical opinions in it, and considering a Higher-Level Review or a Supplemental Claim with a new independent medical opinion that directly addresses the dose assessment and causation question the prior decision relied on.
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