Sections View Full Chapter Figures Tables Videos Annotate Full Chapter Figures Tables Videos Supplementary Content ++ Sport-related concussionMild traumatic brain injury (mTBI)Post-concussion syndromeSecond impact syndrome ++ 850 Concussion850.0 With no loss of consciousness850.11 With brief loss of consciousness (less than 30 minutes)850.12 With brief loss of consciousness (31 to 59 minutes)850.2 With moderate loss of consciousness (1 to 24 hours)850.3 With prolonged loss of consciousness and return to pre-existing consciousness level (24 hours + with full recovery)850.4 With prolonged loss of consciousness, without return to pre-existing consciousness level850.5 Loss of consciousness of unspecified duration850.9 Concussion unspecified ++ S06.0 ConcussionS06.0X0A Without loss of consciousness, initial encounterS06.0X0D Without loss of consciousness, subsequent encounterS06.0X0S Without loss of consciousness, sequelaS06.0X1 Concussion with loss of consciousness of 30 minutes or lessS06.0X2 Concussion with loss of consciousness of 31 minutes to 59 minutesS06.0X3 Concussion with loss of consciousness of 1 hour to 5 hours 59 minutesS06.0X4 Concussion with loss of consciousness of 6 hours to 24 hours, initial encounterS06.0X5 Concussion with loss of consciousness greater than 24 hours with return to pre existing conscious levelS06.0X6 Concussion with loss of consciousness greater than 24 hours without return to pre-existing conscious level with patient survivingS06.0X7 Concussion with loss of consciousness of any duration with death due to brain injury prior to regaining consciousnessS06.0X8 Concussion with loss of consciousness of any duration with death due to other cause prior to regaining consciousnessS06.0X9 Concussion with loss of consciousness of unspecified duration ++ 5C: Impaired Motor Function and Sensory Integrity Associated With Nonprogressive Disorders of the Central Nervous System - Congenital Origin or Acquired in Infancy or Childhood5D: Impaired Motor Function and Sensory Integrity Associated With Nonprogressive Disorders of the Central Nervous System - Acquired in Adolescence or Adulthood5I: Impaired Arousal, Range of Motion, and Motor Control Associated With Coma, Near Coma, or Vegetative State +++ Description ++ Complex pathophysiological process affecting the brain; induced by traumatic biomechanical force2May be caused by direct blow to the head, face, neck, elsewhere on the body with impulsive force transmitted to the headMay occur from linear deceleration injury or rotational injury3Seventeen times more likely to occur with linear acceleration > 100gFourteen times more likely to occur with rotational acceleration > 5000 rad/sec “Simple” vs. “Complex” concussions4,5Simple: symptoms resolve in 7-10 days, no intervention beyond limiting play, rest until symptoms resolveComplex: symptoms persist > 10 days or loss of consciousness > 1 minute; neuropsychological testing and multidisciplinary approach recommended for individuals with history of head injuriesComplex concussions 18x more likely than simple concussions to have impaired composite scores on neurocognitive testing for 3 out of 4 on visual memory, reaction time, processing speed, or symptom scoresSecond impact syndrome: life-threatening condition, may be triggered by very minor impact while individual still suffering symptoms of initial concussion6 +++ Essentials of ... Your Access profile is currently affiliated with '[InstitutionA]' and is in the process of switching affiliations to '[InstitutionB]'. Please click ‘Continue’ to continue the affiliation switch, otherwise click ‘Cancel’ to cancel signing in. Get Free Access Through Your Institution Learn how to see if your library subscribes to McGraw Hill Medical products. Subscribe: Institutional or Individual Sign In Username Error: Please enter User Name Password Error: Please enter Password Forgot Password? Forgot Username? Sign in via OpenAthens Sign in via Shibboleth You already have access! Please proceed to your institution's subscription. Create a free a profile for additional features.