Acute Radiation Syndrome

**Definition:** A condition caused by a brief whole body exposure to more than one sievert dose equivalent of radiation. Acute radiation syndrome is initially characterized by ANOREXIA; NAUSEA; VOMITING; but can progress to hematological, gastrointestinal, neurological, pulmonary, and other major organ dysfunction.

**Tree numbers:** - C26.733.188 - G01.750.748.500.188 - N06.850.460.350.850.500.158 - N06.850.810.300.360.158