`A52.01` Syphilitic aneurysm of aorta

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

MS-DRG index

Defines the logic of DRG(s) 306-307 in MDC 05.

Code First: I71 Aortic aneurysm and dissection ("syphilitic aortic aneurysm (A52.01)")
Type 1 Excludes: I79.0 Aneurysm of aorta in diseases classified elsewhere ("syphilitic aneurysm (A52.01)")

Type 2 Excludes: N34 Urethritis and urethral syndrome ("urethritis in diseases with a predominantly sexual mode of transmission (A50-A64)")

Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › abdominal (aorta) › syphilitic
Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › aorta, aortic (nonsyphilitic) › syphilitic
Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › cylindroid (aorta) › syphilitic
Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › intrathoracic (nonsyphilitic) › syphilitic
Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › syphilitic (aorta)
Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › thoracoabdominal (aorta) › syphilitic
Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › thorax, thoracic (aorta) (arch) (nonsyphilitic) › syphilitic
Disease, diseased › heart (organic) › syphilitic › aortic › aneurysm
Rupture, ruptured › aorta, aortic › syphilitic
Syphilis, syphilitic (acquired) › aneurysm (aorta) (ruptured)
Syphilis, syphilitic (acquired) › aorta (arch) (abdominal) (thoracic) › aneurysm
Syphilis, syphilitic (acquired) › aortic (insufficiency) (regurgitation) (stenosis) › aneurysm
Syphilis, syphilitic (acquired) › dilatation, aorta