Further, healthcare providers classify traumatic brain injuries as being mild, moderate and severe. They may use the term concussion when talking about mild TBI. They typically group moderate and severe TBI together.

TBIs are typically classified into three categories: mild, moderate, and severe. A mild TBI might leave you feeling dazed and confused for a few minutes to a few hours. It’s the brain injury equivalent of stubbing your toe – painful and annoying, but usually not life-altering.