Stenosis of other cardiac prosth dev/grft, initial encounter

This code signifies a narrowing or obstruction within a previously implanted cardiac device, such as a pacemaker lead, an artificial heart valve (other than aortic or mitral), or a coronary artery bypass graft. This stenosis can impede blood flow or device function, leading to various cardiac symptoms.

Apply this code when a patient presents with symptoms or diagnostic findings indicating a new or acute stenosis of a cardiac prosthetic device, implant, or graft (excluding aortic and mitral valves) during the initial phase of treatment. This includes situations where the patient is first being evaluated for the stenosis.

• Ensure the documentation clearly specifies "stenosis" and identifies the affected cardiac prosthetic device, implant, or graft (excluding aortic and mitral valves).
• Confirm this is the initial encounter for the management of this specific stenosis. Subsequent encounters would use different seventh characters.
• Do not use this code for stenosis of native cardiac structures or for complications related to aortic or mitral valve prostheses, which have their own specific codes.