While NT‐proBNP is almost always elevated in HF, there are other cardiovascular disorders (e.g., acute coronary syndrome, myocarditis, arrhythmia) and noncardiovascular conditions (e.g., aging, renal disease, sepsis, anemia, liver disease) that affect BNP/NT‐proBNP levels as well. This evidence concerns the gene NPPB and liver disorder.