ICD-10-CM > I00-I99 > I70-I79 > I71 > I71.5 I71.5 Thoracoabdominal aortic aneurysm, ruptured Non-Billable/Non-Specific Codes I71.50Thoracoabdominal aortic aneurysm, ruptured, unspecifiedI71.51Supraceliac aneurysm of the thoracoabdominal aorta, rupturedI71.52Paravisceral aneurysm of the thoracoabdominal aorta, ruptured