ICD-10 Code I37.2 – Nonrheumatic pulmonary valve stenosis with insufficiency (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I37.2 – Nonrheumatic pulmonary valve stenosis with insufficiency
What it is
This code identifies a nonrheumatic narrowing of the pulmonary valve that also allows backward flow. It describes a structural valve disorder, not a rheumatic one.
Clinical signs
Clinical features vary; refer to documentation. You may see evidence of pulmonary valve stenosis with concomitant insufficiency on echocardiography or other cardiac evaluation, with findings documented by the clinician.
When to use this code
Use I37.2 when the provider documents both pulmonary valve stenosis and pulmonary valve insufficiency, and the condition is specifically nonrheumatic. This is appropriate for confirmed congenital or acquired valve disease when rheumatic heart disease is not the cause. If the record only says pulmonary valve disease, check documentation for the exact lesion.
Do not use for
Do not use this code for rheumatic pulmonary valve disease or for isolated stenosis or insufficiency without both elements documented. Check documentation if the cause or valve involved is unclear.
Coding tip
Code only when the provider clearly links both stenosis and insufficiency to the pulmonary valve.