Dilated Ascending Aorta: Understanding The ICD-10 Code

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 health complications if not properly diagnosed and treated. In the International Classification of Diseases, 10th Revision (ICD-10), ascending aorta dilation is assigned a specific code for medical billing and record-keeping purposes.

Code Information for Ascending Aorta Dilation ICD-10

The ICD-10 code for ascending aorta dilation is I71.01. This code is used to specify a diagnosis of thoracic aortic aneurysm, dissecting. It is important for healthcare providers to use the correct code when documenting and billing for this condition in order to ensure accurate tracking and reporting of patient diagnoses.

Diagnostic Related Groups (MS-DRG) for Ascending Aorta Dilation

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

When it comes to reimbursement for medical procedures related to ascending aorta dilation, healthcare providers use the Medicare Severity-Diagnosis Related Group (MS-DRG) system. The MS-DRG code for ascending aorta dilation falls under the category of cardiovascular procedures with major complications or comorbidities.

Convert to ICD-9 Code for Ascending Aorta Dilation

Prior to the implementation of ICD-10 coding system, ascending aorta dilation was coded using the ICD-9-CM code 441.01. This code specified a diagnosis of thoracic aneurysm, dissecting.

Code History for Ascending Aorta Dilation

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

The ICD-10 code for ascending aorta dilation was first introduced in 2015 as part of the transition from ICD-9 to ICD-10 coding systems. This change was made to improve accuracy and specificity in coding for medical conditions, including ascending aorta dilation.

Approximate Synonyms for Ascending Aorta Dilation

Other terms that may be used interchangeably with ascending aorta dilation include thoracic aortic aneurysm, ascending aortic aneurysm, and aortic root dilation. These terms all refer to the same medical condition of enlargement of the ascending part of the aorta.

Clinical Information for Ascending Aorta Dilation

Ascending aorta dilation can be a serious and potentially life-threatening condition if left untreated. It is often associated with underlying cardiovascular risk factors such as hypertension, atherosclerosis, and genetic predisposition. Patients with ascending aorta dilation may be at increased risk for aortic dissection or rupture, which can lead to sudden death.

Causes of Ascending Aorta Dilation

The exact cause of ascending aorta dilation is not always clear, but it is believed to be multifactorial. Risk factors for developing this condition include high blood pressure, smoking, family history of aortic aneurysms, and connective tissue disorders such as Marfan syndrome and Ehlers-Danlos syndrome.

Symptoms of Ascending Aorta Dilation

Many patients with ascending aorta dilation do not experience any symptoms until the condition has progressed to a more advanced stage. Symptoms that may indicate aortic dilation include chest pain, shortness of breath, hoarseness, difficulty swallowing, and a pulsating sensation in the abdomen. In some cases, ascending aorta dilation may be detected incidentally during imaging studies for other medical conditions.

Diagnosis of Ascending Aorta Dilation

Ascending aorta dilation is typically diagnosed using imaging studies such as echocardiography, CT scan, or MRI. These tests can provide detailed information about the size and shape of the ascending aorta, as well as any associated complications such as dissection or rupture. Blood tests may also be conducted to assess for underlying risk factors such as high cholesterol or genetic disorders.

Treatment for Ascending Aorta Dilation

The management of ascending aorta dilation depends on the size of the aneurysm, the presence of symptoms, and the risk of complications such as dissection or rupture. Treatment options may include medications to control blood pressure and cholesterol, lifestyle modifications such as smoking cessation and regular exercise, and surgical intervention to repair or replace the dilated portion of the aorta.


Ascending aorta dilation is a serious medical condition that requires prompt diagnosis and appropriate treatment to prevent potentially life-threatening complications. Healthcare providers use specific ICD-10 codes to accurately document

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