2024 ICD-10-CM Diagnosis Code I71.9

Aortic aneurysm of unspecified site, without rupture

ICD-10-CM Code:
I71.9
ICD-10 Code for:
Aortic aneurysm of unspecified site, without rupture
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Chronic
Code Navigator:

Code Classification

  • Diseases of the circulatory system
    (I00–I99)
    • Diseases of arteries, arterioles and capillaries
      (I70-I79)
      • Aortic aneurysm and dissection
        (I71)

I71.9 is a billable diagnosis code used to specify a medical diagnosis of aortic aneurysm of unspecified site, without rupture. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Unspecified diagnosis codes like I71.9 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Aneurysm of aorta at coarctation site following procedure
  • Aneurysm of descending aorta
  • Aortic aneurysm
  • Aortic aneurysm due to congenital heart disease
  • Aortic aneurysm due to Loeys-Dietz syndrome
  • Aortic left ventricular tunnel
  • Aortic tunnel
  • Aortico-left ventricular tunnel with extracardiac aneurysm of aortic wall
  • Congenital aneurysm of aorta
  • Congenital dilatation of aorta
  • False aneurysm of artery
  • Hyaline necrosis of aorta
  • Necrosis of artery
  • Penetrating ulcer of aorta
  • Pericarditis secondary to aortic aneurysm
  • Post-procedural aortic aneurysm
  • Post-procedural false aortic aneurysm
  • Ulcer of artery

Clinical Classification

Clinical Information

  • Aneurysm, Ascending Aorta

    an abnormal balloon- or sac-like dilatation in the wall of the ascending aorta.
  • 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.
  • Aorta

    the main trunk of the systemic arteries.

Tabular List of Diseases and Injuries

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


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Aneurysm of aorta
  • Dilatation of aorta
  • Hyaline necrosis of aorta

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert I71.9 to ICD-9-CM

  • ICD-9-CM Code: 441.9 - Aortic aneurysm NOS
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education


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:

  • Thoracic aortic aneurysms (TAA) - these occur in the part of the aorta running through the chest
  • Abdominal aortic aneurysms (AAA) - these occur in the part of the aorta running through the abdomen

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 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • 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. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.