Match the evidence to the unanswered question
Four questions sit inside most claims. What condition is there? What happened in service, or which service-connected condition is involved? What connects them? How bad is it, during the period that matters?
Different evidence answers different ones. The commonest mistake is sending more of what you already proved.
| Evidence | Usually good for | Usually leaves open |
|---|---|---|
| Diagnosis and treatment records | The condition, testing, treatment, chronology | The connection to service |
| DBQ | Structured findings, symptoms, functional effect | A full explanation of the medical nexus |
| Reasoned medical opinion | Causation or aggravation, when the clinician explains it | Other elements, and severity over time |
| Personal or witness statement | Firsthand observation, onset, frequency, daily effect | A medically complex diagnosis or cause |
| Service and personnel records | Events, dates, duties, exposure | The present diagnosis and its cause |
| C&P report | The findings and opinions VA asked for | Everything the examiner was not asked about |
Use the denial as the specification
Read what the decision says was missing, then get evidence that answers that. If VA conceded the diagnosis and denied on nexus, another copy of the diagnosis changes nothing, however thick the envelope.
VA's own evidence guide is worth reading alongside your decision's stated reasons.
Accuracy beats volume
Describe what is true, including the parts that do not help. Evidence that overstates is worth less than evidence that holds up, and treatment decisions belong with your clinician rather than with your claim.
Next: find the right forms · request your records · prepare for an exam
Rules and forms change, and exceptions apply. Follow the instructions on your own decision letter and the linked governing sources. This site does not track your deadlines or file anything for you.
Reviewed October 6, 2026