Decoding Nonrheumatic Tricuspid Valve Regurgitation: Understanding ICD-10 Codes

Nonrheumatic Tricuspid Valve Regurgitation ICD 10

Nonrheumatic tricuspid valve regurgitation is a condition where the tricuspid valve in the heart does not close properly, causing blood to flow backward into the right atrium during the heart’s pumping cycle. This condition is coded as ICD-10 I36.1.

Code Information

The ICD-10 code for nonrheumatic tricuspid valve regurgitation is I36.1. This code is used to classify and code diagnoses related to this specific heart condition in medical records for billing and administrative purposes.

Diagnostic Related Groups (MS-DRG)

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

Nonrheumatic tricuspid valve regurgitation falls under the MS-DRG 311 – Angina Pectoris, and is grouped with other cardiovascular conditions for billing and reimbursement purposes in hospitals and healthcare facilities.

Convert to ICD-9 Code

For those still using ICD-9 coding, the equivalent code for nonrheumatic tricuspid valve regurgitation would be 424.0 – Mitral Valve Disorders.

Code History

Tricuspid valve regurgitation - Symptoms and causes - Mayo Clinic
Tricuspid valve regurgitation – Symptoms and causes – Mayo Clinic

The ICD-10 code for nonrheumatic tricuspid valve regurgitation was introduced in 2015 as part of the transition from ICD-9 to ICD-10 coding systems to provide more detailed and specific codes for medical diagnoses.

Approximate Synonyms

Tricuspid valve insufficiency
Tricuspid regurgitation
Non-rheumatic tricuspid valve incompetence

Clinical Information

Nonrheumatic tricuspid valve regurgitation can be caused by a variety of factors, including congenital heart defects, infective endocarditis, and pulmonary hypertension. It can also occur as a result of heart failure, where the right ventricle becomes enlarged and stretches the tricuspid valve annulus, preventing the valve from closing properly.


Some of the common causes of nonrheumatic tricuspid valve regurgitation include:

Congenital heart defects
Infective endocarditis
Pulmonary hypertension
Heart failure


Patients with nonrheumatic tricuspid valve regurgitation may experience symptoms such as fatigue, shortness of breath, palpitations, and swelling in the legs and abdomen. In severe cases, complications such as arrhythmias and congestive heart failure may develop.


Diagnosing nonrheumatic tricuspid valve regurgitation involves a thorough medical history, physical examination, and various diagnostic tests such as echocardiography, electrocardiography, and cardiac catheterization to assess the severity of the condition and its impact on heart function.


Treatment for nonrheumatic tricuspid valve regurgitation depends on the underlying cause and severity of the condition. In mild cases, close monitoring may be sufficient, while more severe cases may require medications to manage symptoms or surgical intervention to repair or replace the tricuspid valve.


Nonrheumatic tricuspid valve regurgitation is a complex heart condition that can have significant implications for a patient’s health and well-being. Proper diagnosis, treatment, and management are essential to improve outcomes and quality of life for individuals with this condition.


1. Can nonrheumatic tricuspid valve regurgitation be prevented?

While some causes of tricuspid valve regurgitation are not preventable, maintaining a healthy lifestyle and managing underlying heart conditions can help reduce the risk of developing this condition.

2. What are the long-term effects of untreated tricuspid valve regurgitation?

Untreated tricuspid valve regurgitation can lead to complications such as heart failure, arrhythmias, and increased risk of infections, ultimately impacting the overall health and functioning of the heart.

3. Is surgery always necessary for treating tricuspid valve regurgitation?

In some cases, medication and lifestyle changes may be sufficient to manage symptoms and slow the progression of the condition. Surgery is typically reserved for more severe cases or when other treatments are ineffective.

4. How common is nonrheumatic tricuspid valve regurgitation?

Tricuspid valve regurgitation is less common than other heart conditions, but can still occur in individuals with certain risk factors such as congenital heart defects, infections, or heart failure.

5. What is the prognosis for individuals with nonrheumatic tricuspid valve regurgitation?

The prognosis for individuals with tricuspid valve regurgitation depends on the severity of the condition, underlying causes, and response to treatment. With proper management and care, many individuals can lead a normal and healthy life with this condition.

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