441: Aortic aneurysm and dissection
Excludes:
aortic ectasia (447.70-447.73)
syphilitic aortic aneurysm (093.0)
traumatic aortic aneurysm (901.0, 902.0)
441.0 Dissection of aorta
441.00: Unspecified site
441.01: Thoracic
441.02: Abdominal
441.03: Thoracoabdominal
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