Most denials are not about whether a veteran is sick or injured. They are about which of the three elements the record failed to establish. Reading your decision letter carefully tells you which one.
The common gaps
- No current diagnosis in the record — symptoms are documented but no clinician named the condition
- No in-service event identified — the injury happened but was never written down
- No medical link — both ends are documented, nothing connects them
- An unfavorable C&P opinion that the record never rebutted
- A secondary pathway that was never claimed or addressed
- A pre-existing condition treated as not aggravated by service
Matching evidence to the gap
A nexus letter closes the third and fourth gaps and is often the only thing that will. It does nothing for a missing diagnosis — that requires a clinical evaluation. For a missing in-service event, lay and buddy statements, unit records, and personnel files carry more weight than a medical opinion. Reading the denial precisely before buying evidence is the single highest-value step in the process.