2021 ICD-10-CM Code I71

Aortic aneurysm and dissection

Version 2021

Not Valid for Submission

I71 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of aortic aneurysm and dissection. The code is not specific and is NOT valid for the year 2021 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

ICD-10:I71
Short Description:Aortic aneurysm and dissection
Long Description:Aortic aneurysm and dissection

Code Classification

Specific Coding for Aortic aneurysm and dissection

Non-specific codes like I71 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for aortic aneurysm and dissection:

  • NON-BILLABLE CODE - I71.0 for Dissection of aorta
  • BILLABLE CODE - Use I71.00 for Dissection of unspecified site of aorta
  • BILLABLE CODE - Use I71.01 for Dissection of thoracic aorta
  • BILLABLE CODE - Use I71.02 for Dissection of abdominal aorta
  • BILLABLE CODE - Use I71.03 for Dissection of thoracoabdominal aorta
  • BILLABLE CODE - Use I71.1 for Thoracic aortic aneurysm, ruptured
  • BILLABLE CODE - Use I71.2 for Thoracic aortic aneurysm, without rupture
  • BILLABLE CODE - Use I71.3 for Abdominal aortic aneurysm, ruptured
  • BILLABLE CODE - Use I71.4 for Abdominal aortic aneurysm, without rupture
  • BILLABLE CODE - Use I71.5 for Thoracoabdominal aortic aneurysm, ruptured
  • BILLABLE CODE - Use I71.6 for Thoracoabdominal aortic aneurysm, without rupture
  • BILLABLE CODE - Use I71.8 for Aortic aneurysm of unspecified site, ruptured
  • BILLABLE CODE - Use I71.9 for Aortic aneurysm of unspecified site, without rupture

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code I71:


Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

Information for Patients


Aortic Aneurysm

An aneurysm is a bulge or "ballooning" in the wall of an artery. Arteries are blood vessels that carry oxygen-rich blood from the heart to other parts of the body. If an aneurysm grows large, it can burst and cause dangerous bleeding or even death.

Most aneurysms are in the aorta, the main artery that runs from the heart through the chest and abdomen.

There are two types of aortic aneurysm:

Most aneurysms are found during tests done for other reasons. Some people are at high risk for aneurysms. It is important for them to get screening, because aneurysms can develop and become large before causing any symptoms. Screening is recommended for people between the ages of 65 and 75 if they have a family history, or if they are men who have smoked. Doctors use imaging tests to find aneurysms. Medicines and surgery are the two main treatments.

NIH: National Heart, Lung, and Blood Institute


[Learn More in MedlinePlus]

Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)