I07.0

What This Code Means

This condition occurs when the tricuspid valve (the valve on the right side of the heart) becomes narrowed due to rheumatic fever damage, restricting blood flow from the right atrium into the right ventricle. It is a long-term consequence of rheumatic heart disease.

Coding Tips

• •Verify documentation confirms rheumatic etiology; if the tricuspid stenosis is due to other causes (congenital, degenerative, etc.), use different codes from the I36-I37 range
• •Check for associated conditions like rheumatic mitral or aortic valve disease, as multiple valve involvement is common in rheumatic heart disease and should be coded separately