MMWR Morb Mortal Wkly Rep. 2002 Sep 11;51 Spec No:18-9.
Classification of the deaths and injuries that occurred as the result of the events of September 11, 2001, presented CDC's National Center for Health Statistics (NCHS) with a dilemma. Under the current classification systems for mortality and morbidity, the World Health Organization's International Classification of Diseases, Tenth Revision (ICD-10) and the United States' International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM), deaths and injuries associated with acts of terrorism could not be identified uniquely.
2001年9月11日事件导致的伤亡分类给美国疾病控制与预防中心（CDC）的国家卫生统计中心（NCHS）带来了难题。在当前的死亡率和发病率分类系统，即世界卫生组织的《国际疾病分类》第十版（ICD - 10）和美国的《国际疾病分类》第九版临床修订本（ICD - 9 - CM）下，与恐怖主义行为相关的死亡和伤害无法被唯一识别。
