J80-J84: Other respiratory diseases principally affecting the interstitium

J84: Other interstitial pulmonary diseases

Other interstitial pulmonary diseases refer to a group of lung conditions that cause scarring (fibrosis) of the lung tissues, specifically the interstitium - the area around the lung's air sacs. These conditions result from various causes such as prolonged exposure to hazardous materials (like asbestos or coal dust), radiation treatments, certain medications, and sometimes without any identifiable reason, a scenario referred to as idiopathic. Common features among these conditions include a persistent dry cough, shortness of breath, fatigue, and unexplained weight loss. As the disease progresses, the scarring in the lungs increases, further restricting air flow and making breathing more difficult. The functionality of the respiratory system is significantly impacted, often leading to reduced capacity for physical activity. Despite the common symptoms, the severity, rate of progression, and response to treatment can vary widely among individuals affected by these diseases.