Building Your Evidence Package — The Three Pillars

A VA claim is won or lost on evidence. Almost every direct service-connection claim rests on the same three pillars — and a claim with a weak pillar is a claim at risk.

Pillar 1 — A current diagnosis

You must have a current, documented diagnosis of the condition. "I have symptoms" isn't enough on its own; the VA needs a diagnosis in your medical records. No current diagnosis, no service connection.

Pillar 2 — An in-service event, injury, or exposure

There must be something in service to connect the condition to — an injury, an illness, an event, or a toxic exposure. This can come from service treatment records, your DD-214, unit records, or buddy statements when official records are thin.

Pillar 3 — A medical nexus

A nexus is a medical opinion linking pillar 1 to pillar 2 — that your current condition is at least as likely as not related to the in-service event. For presumptive conditions, the VA supplies this link for you; for everything else, you typically need a nexus letter.

Find the gap before the VA does

Most denials trace to one missing pillar — usually a missing nexus or a thin in-service record. The strongest thing you can do before filing is audit your own evidence against the rating criteria for your condition and fix the weakest pillar first.

Helpful supporting documents

• •VA Form 21-4142 — authorizes the VA to request your private medical records.
• •VA Form 21-10210 — a lay/witness statement (buddy statement) to document events official records missed.
• •Personal statements — your own account of symptoms and how the condition affects daily life.