ICD-10 Code I36.2 – Nonrheumatic tricuspid (valve) stenosis with insufficiency (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I36.2 – Nonrheumatic tricuspid (valve) stenosis with insufficiency
What it is
I36.2 identifies a nonrheumatic tricuspid valve disorder in which the valve is both narrowed and leaky. Use it when documentation states tricuspid stenosis with insufficiency and does not link the condition to rheumatic disease.
Clinical signs
Clinical features vary; refer to documentation. Commonly, the record may note a tricuspid valve murmur, signs of right-sided heart strain, or imaging findings showing both stenosis and regurgitation of the tricuspid valve.
When to use this code
Use this code when the provider documents nonrheumatic tricuspid stenosis with insufficiency, or an equivalent mixed tricuspid valve lesion. It is appropriate for confirmed congenital, degenerative, or other nonrheumatic valve disease if the note clearly supports both components. Check documentation if the cause is not specified.
Do not use for
Do not use I36.2 for isolated tricuspid stenosis or isolated tricuspid regurgitation. Do not use it when the valve disorder is documented as rheumatic; choose the rheumatic code instead.
Coding tip
Verify that both stenosis and insufficiency are documented before assigning I36.2.