J95-J99: Other diseases of the respiratory system

J98: Other respiratory disorders

The group of conditions known as other respiratory disorders (code J98 in ICD-10 WHO classification) represents diverse respiratory ailments that don't fall directly under other defined groups. These can be conditions affecting the bronchial tubes, lung tissue, or pleural cavity (the space surrounding the lungs). Causes can range from bacterial or viral infections to physical injury, environmental factors, or reaction to certain drugs, while some conditions could be congenital anomalies. Common symptoms include shortness of breath, coughing, wheezing, chest discomfort, or diminished lung function. Progression and severity of the diseases can vary widely, from infancy to adulthood, depending on the specific disorder. As the disorders may not follow a typical path, the variation in presentation can pose diagnostic challenges. The management and prognosis also vastly depend upon the nature of the specific disorder.