Are We Underestimating the Burden of Traumatic Brain Injury? Surveillance of Severe Traumatic Brain Injury Using Centers for Disease Control International Classification of Disease, Ninth Revision, Clinical Modification, Traumatic Brain Injury Codes

Abstract

ICD-9-CM codes were sensitive for the presence of any severe TBI, but further classification of specific types of TBI was limited by variable sensitivity/specificity. Use of these codes should be supplemented by other methodology.