A concussion is a mild traumatic brain injury caused by a blow or jolt producing transient alteration in mental status, which may include brief loss of consciousness, confusion, or amnesia. Standard imaging is typically normal.

Most concussions resolve within weeks, though a subset of patients report persistent symptoms.

Alternative Names:

Mild Traumatic Brain Injury, mTBI

Why it Matters?

Concussion claims are contested because the diagnosis often rests on self-reported symptoms and standard imaging is unremarkable. The evidence that matters is contemporaneous: emergency department records documenting mental status, Glasgow Coma Scale scores, and whether loss of consciousness was actually recorded rather than reported months later. Persistent symptom claims turn on neuropsychological testing with validity measures and a documented pre-injury baseline.

Frequently Confused with

Related terms

Frequently asked questions

Can a concussion be diagnosed with normal imaging?

Can a concussion be diagnosed with normal imaging?

Yes. Standard CT and MRI are typically normal in concussion, which is why diagnosis rests on clinical presentation and contemporaneous documentation.

What contemporaneous records matter most?

What contemporaneous records matter most?

Emergency department mental status documentation, Glasgow Coma Scale scores, and whether loss of consciousness or amnesia was recorded at the time rather than reported later.