Back to Self Assurance definition listing Choose a year from the dropdown to view that year's definition 2019 2019 2015 2013 2012 2011 2009 2007 Traumatic brain injury Date: January 2019 Definition: Death of brain tissue due to traumatic injury resulting in permanent neurological deficit with persisting clinical symptoms.Last updated December 2015 Definition update history: Traumatic brain injury January 2019 Traumatic brain injury December 2015 Traumatic brain injury September 2013 Traumatic brain injury May 2012 Traumatic brain injury May 2011 Traumatic brain injury July 2009 Traumatic brain injury April 2007 Share this by email Back to Self Assurance definition listing