Swann v. Brown — PTSD service connection requires corroborated stressor evidence where combat is not shown

The appellant sought service connection for PTSD based on alleged Vietnam stressors, including mortar attacks and other traumatic events. The Board denied the claim, finding no verified stressor and concluding that the veteran’s military specialty and service records did not show exposure to more than an ordinary stressful environment. The Court affirmed, applying the then-new M21-1 PTSD development provisions and holding that, in a noncombat case, a veteran’s account of stressors is not enough by itself to establish the factual basis for PTSD service connection. The Court also held that the Board was not required to accept PTSD diagnoses that were based on the veteran’s uncorroborated history, especially where the narratives were inconsistent and the diagnoses were made many years after service. The decision matters because it confirms that PTSD claims require credible supporting evidence of the in-service stressor when combat participation is not established, and that medical opinions predicated on unverified history may be assigned diminished probative value.

In a noncombat PTSD claim, the veteran’s lay account of stressors is insufficient by itself; the record must contain credible supporting evidence of the stressor, and the Board may discount medical diagnoses that are based on unverified history.

When combat is not established, corroboration of the stressor is often the decisive issue in PTSD claims, and advocates should develop independent evidence before relying on a favorable diagnosis.

Swann remains an important early PTSD service-connection decision because it explains how the Board may evaluate claimed stressors, lay accounts, and medical opinions in noncombat cases. It is frequently cited for the proposition that a diagnosis founded on a veteran’s uncorroborated story does not compel service connection.

Relying on an unverified PTSD history as if it were proof of the stressor.

A veteran reports seeing traumatic events in Vietnam, but service records do not show combat and no unit records, buddy statements, or other evidence corroborate the events. A clinician diagnoses PTSD based only on the veteran’s narrative. Swann supports denial unless the stressor can be independently verified.

Use Swann when arguing that the Board may assign reduced weight to a PTSD opinion based entirely on unverified stressor history, or when defending a denial in a noncombat PTSD claim lacking corroboration.

Wood v. Derwinski, Wilson v. Derwinski, Gilbert v. Derwinski, Hayes v. Brown, Karnas v. Derwinski