ICD-10 Code I36.0 – Nonrheumatic tricuspid (valve) stenosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I36.0 – Nonrheumatic tricuspid (valve) stenosis
What it is
I36.0 identifies narrowing of the tricuspid valve that is not caused by rheumatic disease. Use it when documentation specifies tricuspid valve stenosis and excludes rheumatic origin.
Clinical signs
Clinical features vary; refer to documentation. Standard references describe signs of right-sided valvular obstruction, such as findings consistent with impaired flow across the tricuspid valve.
When to use this code
Use this code when the provider documents nonrheumatic tricuspid stenosis, congenital or acquired, without stating rheumatic etiology. It may also fit when imaging or cardiology notes confirm tricuspid valve narrowing and the record clearly supports a nonrheumatic cause.
Do not use for
Do not use I36.0 if the stenosis is documented as rheumatic, or if the record only mentions tricuspid regurgitation or another valve disorder. Check documentation when the valve lesion is unspecified.
Coding tip
Verify the valve involved and the cause; if rheumatic disease is mentioned, choose the rheumatic code instead.