What is bronchiolitis?

Bronchiolitis is specifically defined as the inflammation of the small airways in the lungs, known as bronchioles. This condition is primarily seen in infants and young children, often resulting from viral infections, particularly respiratory syncytial virus (RSV). The inflammation can lead to symptoms such as wheezing, coughing, and difficulty breathing due to the narrowing or obstruction of the bronchioles.

Understanding the distinction between bronchiolitis and other respiratory conditions is crucial for accurate coding and clinical decision-making. For instance, while the inflammation of the lungs is referred to as pneumonia, which is a different diagnosis altogether, bronchiolitis focuses solely on the smaller airways. Similarly, though the term might sound related, lung cancer is a completely separate entity, and infections of the bronchi pertain to bronchitis, not bronchiolitis. This specificity in definition and context is essential for precise coding and medical documentation.