Aortic aneurysm and dissection (I71)

Browse all the diagnosis codes used for aortic aneurysm and dissection (i71). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.

Clinical Information

Aneurysm, Ascending Aorta - An abnormal balloon- or sac-like dilatation in the wall of the ASCENDING AORTA.

Aorta - The main trunk of the systemic arteries.

Aortic Aneurysm - An abnormal balloon- or sac-like dilatation in the wall of AORTA.

Aortic Aneurysm, Abdominal - An abnormal balloon- or sac-like dilatation in the wall of the ABDOMINAL AORTA which gives rise to the visceral, the parietal, and the terminal (iliac) branches below the aortic hiatus at the diaphragm.

Aortic Aneurysm, Thoracic - An abnormal balloon- or sac-like dilatation in the wall of the THORACIC AORTA. This proximal descending portion of aorta gives rise to the visceral and the parietal branches above the aortic hiatus at the diaphragm.

Aortic Aneurysm, Thoracoabdominal - An abnormal balloon- or sac-like dilatation in the wall of ABDOMINAL AORTA at the aortic hiatus.

Aortic Rupture - The tearing or bursting of the wall along any portion of the AORTA, such as thoracic or abdominal. It may result from the rupture of an aneurysm or it may be due to TRAUMA.

Instructional Notations

Code First

Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.

  • , if applicable:
  • syphilitic aortic aneurysm A52.01
  • traumatic aortic aneurysm S25.09 S35.09
  • Diseases of the circulatory system (I00–I99)

    • Diseases of arteries, arterioles and capillaries (I70-I79)

        • Aortic aneurysm and dissection (I71)

        • I71 Aortic aneurysm and dissection
        • I71.0 Dissection of aorta
        • I71.00 Dissection of unspecified site of aorta
        • I71.01 Dissection of thoracic aorta
        • I71.010 Dissection of ascending aorta
        • I71.011 Dissection of aortic arch
        • I71.012 Dissection of descending thoracic aorta
        • I71.019 Dissection of thoracic aorta, unspecified
        • I71.02 Dissection of abdominal aorta
        • I71.03 Dissection of thoracoabdominal aorta
        • I71.1 Thoracic aortic aneurysm, ruptured
        • I71.10 Thoracic aortic aneurysm, ruptured, unspecified
        • I71.11 Aneurysm of the ascending aorta, ruptured
        • I71.12 Aneurysm of the aortic arch, ruptured
        • I71.13 Aneurysm of the descending thoracic aorta, ruptured
        • I71.2 Thoracic aortic aneurysm, without rupture
        • I71.20 Thoracic aortic aneurysm, without rupture, unspecified
        • I71.21 Aneurysm of the ascending aorta, without rupture
        • I71.22 Aneurysm of the aortic arch, without rupture
        • I71.23 Aneurysm of the descending thoracic aorta, without rupture
        • I71.3 Abdominal aortic aneurysm, ruptured
        • I71.30 Abdominal aortic aneurysm, ruptured, unspecified
        • I71.31 Pararenal abdominal aortic aneurysm, ruptured
        • I71.32 Juxtarenal abdominal aortic aneurysm, ruptured
        • I71.33 Infrarenal abdominal aortic aneurysm, ruptured
        • I71.4 Abdominal aortic aneurysm, without rupture
        • I71.40 Abdominal aortic aneurysm, without rupture, unspecified
        • I71.41 Pararenal abdominal aortic aneurysm, without rupture
        • I71.42 Juxtarenal abdominal aortic aneurysm, without rupture
        • I71.43 Infrarenal abdominal aortic aneurysm, without rupture
        • I71.5 Thoracoabdominal aortic aneurysm, ruptured
        • I71.50 Thoracoabdominal aortic aneurysm, ruptured, unspecified
        • I71.51 Supraceliac aneurysm of the thoracoabdominal aorta, ruptured UPDATED CODE
        • I71.52 Paravisceral aneurysm of the thoracoabdominal aorta, ruptured UPDATED CODE
        • I71.6 Thoracoabdominal aortic aneurysm, without rupture
        • I71.60 Thoracoabdominal aortic aneurysm, without rupture, unspecified
        • I71.61 Supraceliac aneurysm of the thoracoabdominal aorta, without rupture UPDATED CODE
        • I71.62 Paravisceral aneurysm of the thoracoabdominal aorta, without rupture UPDATED CODE
        • I71.8 Aortic aneurysm of unspecified site, ruptured
        • I71.9 Aortic aneurysm of unspecified site, without rupture