J66: Airway disease due to specific organic dust

J66.8: Airway disease due to other specific organic dusts

You need lungs to breath. When you breathe in, the air with the oxygen passes through the airways to the lungs. The respiratory tract ends in the air sacs in the lungs. Oxygen passes into the blood in the pulmonary alveoli (air sacs). The pulmonary alveoli and the airways are surrounded by supportive tissue. This supportive tissue consists of connective tissue.

You have gotten symptoms in your lungs after inhaling dust from certain plants or molds.