ICD-10 Code For Ascending Aorta Dilation: I71.01

What is Ascending Aorta Dilation ICD-10?

Ascending aorta dilation is a medical condition where the ascending part of the aorta, the largest artery in the body, becomes enlarged. This can lead to serious complications if left untreated, such as aortic dissection or aneurysm. In the International Classification of Diseases, Tenth Revision (ICD-10), ascending aorta dilation is assigned the code I71.01.

Code Information

Interrupted Aortic Arch (q., Preferred; Also Q., Q
Interrupted Aortic Arch (q., Preferred; Also Q., Q

The ICD-10 code for ascending aorta dilation is I71.01. This code is used by healthcare providers to accurately diagnose and document the condition in medical records. It is important to use the correct code to ensure proper treatment and billing procedures.

Diagnostic Related Groups (MS-DRG)

ICD--CM Diagnosis Code I
ICD–CM Diagnosis Code I

Ascending aorta dilation falls under the Diagnostic Related Group (MS-DRG) 238 – Major Cardiovascular Procedures with MCC. This DRG categorizes patients who undergo major cardiovascular procedures with major complications or comorbidities.

Convert to ICD-9 Code

Ascending Aortic Aneurysm: Repair, Surgery, and Size Criteria
Ascending Aortic Aneurysm: Repair, Surgery, and Size Criteria

In the previous coding system, International Classification of Diseases, Ninth Revision (ICD-9), ascending aorta dilation was assigned the code 441.01. It is important for healthcare providers to be aware of both ICD-9 and ICD-10 codes for accurate coding and billing purposes.

Code History

The ICD-10 code I71.01 for ascending aorta dilation was introduced in October 2015 as part of the regular updates to the coding system. This code replaced the previous ICD-9 code 441.01 and is used to identify and track cases of ascending aorta dilation in healthcare settings.

Approximate Synonyms

Some approximate synonyms for ascending aorta dilation include aortic root dilation, aortic valve dilation, and aortic arch dilation. These terms may be used interchangeably to describe the enlargement of the ascending part of the aorta.

Clinical Information

Ascending aorta dilation can be a serious condition that requires prompt diagnosis and treatment. It is often associated with underlying heart conditions such as aortic valve disease, Marfan syndrome, or hypertension. Patients with ascending aorta dilation may be at risk for complications such as aortic dissection or aneurysm formation.

Causes of Ascending Aorta Dilation

The exact cause of ascending aorta dilation is not always clear, but there are several factors that may contribute to its development. These include genetic predisposition, connective tissue disorders, high blood pressure, smoking, and atherosclerosis. Regular medical check-ups and monitoring can help identify and manage risk factors for ascending aorta dilation.

Symptoms of Ascending Aorta Dilation

Patients with ascending aorta dilation may not experience any symptoms initially, but as the condition progresses, they may develop symptoms such as chest pain, shortness of breath, palpitations, and fatigue. In some cases, ascending aorta dilation can be detected incidentally during imaging tests or physical exams.

Diagnosis of Ascending Aorta Dilation

Diagnosis of ascending aorta dilation typically involves a combination of medical history, physical examination, imaging tests such as echocardiography or CT scan, and genetic testing. Healthcare providers may also monitor the size of the ascending aorta over time to assess the progression of the condition and determine appropriate treatment options.

Treatment for Ascending Aorta Dilation

The treatment for ascending aorta dilation depends on the underlying cause, the size of the dilation, and the presence of symptoms. In some cases, medications such as beta-blockers or ACE inhibitors may be prescribed to manage blood pressure and reduce the risk of complications. Surgery may be recommended for patients with large or rapidly growing ascending aorta dilation to prevent aortic dissection or rupture.


Ascending aorta dilation is a serious condition that requires careful monitoring and management to prevent complications. Healthcare providers use the ICD-10 code I71.01 to accurately diagnose and document cases of ascending aorta dilation. Early detection and appropriate treatment are essential for improving outcomes and quality of life for patients with this condition.


1. Can ascending aorta dilation be prevented? – While the exact cause of ascending aorta dilation is not always known, lifestyle modifications such as maintaining a healthy weight, managing blood pressure, and avoiding smoking can help reduce the risk of developing this condition.

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