J67.8: Hypersensitivity pneumonitis due to other organic dusts

Hypersensitivity pneumonitis due to other organic dusts, also known as extrinsic allergic alveolitis, is an inflammatory lung condition. It occurs when the lungs develop an immune response and become inflamed due to repeated inhalation of specific organic dust particles. These particles can come from various sources such as hay, moldy grass, or other organic materials often encountered in agricultural or certain industrial settings. Common symptoms include fever, cough, chest tightness, and shortness of breath. These symptoms might escalate with continued exposure to the dust. In some situations, the diseased lung may exhibit scarring over time, leading to permanent breathing difficulties. This condition affects the respiratory system and its progression can vary from acute to chronic, depending largely on the exposure level to the organic dusts.