AHA Coding Clinic® for ICD-9 - 1987 May - June

Diagnostic Cardiac Catheterization (37.21-37.23) versus Circulatory Monitoring (89.61-89.69)

Cardiac catheterization,37.21-37.23, may be performed in the evaluation of patients with ischemic heart disease, congenital heart disease, valvular heart disease, and cardiomyopathy. Diagnostic cardiac catheterization codes, 37.21-37.23, identify the invasive procedure carried out in a designated area, such as the cardiac catheterization laboratory or other specially equipped room, for purposes of diagnosing and assessing the severity of cardiovascular disease. Diagnostic cardiac catheterization is often combined with some sort of angiography or arteriography procedure (88.50-88.58 or 88.42-88.44). Diagnostic cardiac catheterization with a angiography requires two codes to identify the procedures performed:...

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