label: New York Heart Association Class
label_lc: new york heart association class
description: "A finding associated with a patient based on the functional classification developed by the New York Heart Association (NYHA), for categorizing patients with defined or presumed cardiac disease. The classification system is based on the ability, or lack thereof, to engage in physical activity. The classification system comprises four classes, though NYHA Class III and Class IV are often aggregated for the purpose of outcomes analysis."