Endocarditis, valve unspecified

This code represents inflammation of the inner lining of the heart (endocardium) or heart valves, when the specific valve affected is not documented. It also covers unspecified valvular dysfunction, such as insufficiency, regurgitation, or stenosis, without further detail on the specific valve or etiology.

Use this code when the medical record documents "endocarditis NOS," "valvulitis NOS," or "valvular insufficiency/stenosis/regurgitation NOS" without specifying the particular heart valve involved or the underlying cause. This code is appropriate when the provider has not identified whether the condition is acute or chronic, or the specific valve affected.

• Avoid using this code if the documentation specifies a particular heart valve (e.g., mitral, aortic, tricuspid, pulmonary); instead, code to the specific valve.
• Do not use if the endocarditis is explicitly stated as rheumatic; refer to I09.1.
• Ensure documentation does not indicate a congenital origin, which would lead to a Q24.8 code.