ICD-10-CM I71: Aortic aneurysm and dissection

ICD-10-CM Diagnosis Code (2025)

Official Description for I71

Aortic aneurysm and dissection

Coding Notes & Guidelines for I71

Code First
  • , if applicable:
  • syphilitic aortic aneurysm (A52.01)
  • traumatic aortic aneurysm (S25.09, S35.09)
Inclusion Terms

Rupture of aorta NOS

Inclusion Terms
  • Aneurysm of aorta
  • Dilatation of aorta
  • Hyaline necrosis of aorta

Child Codes (More Specific Codes for I71):

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 I71.52 - Paravisceral aneurysm of the thoracoabdominal aorta, ruptured 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 I71.62 - Paravisceral aneurysm of the thoracoabdominal aorta, without rupture I71.8 - Aortic aneurysm of unspecified site, ruptured I71.9 - Aortic aneurysm of unspecified site, without rupture

About ICD-10-CM Code I71 (Aortic aneurysm and dissection)

ICD-10-CM code I71 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM I71 became effective on October 1, 2024.

This page provides detailed information about I71 - Aortic aneurysm and dissection. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Aortic aneurysm and dissection.