J30-J39: Other diseases of upper respiratory tract

The "Other diseases of the upper respiratory tract" refer to a group of conditions that affect the upper part of our respiratory system, generally encompassing the nose, sinuses, pharynx, and larynx. While these conditions may differ in their specific symptoms, they typically manifest through issues like nasal congestion, sore throat, runny nose, sneezing, difficulty in swallowing, hoarseness, or cough. Common factors triggering these diseases include allergens, pollutants, viral or bacterial infections, and anatomical abnormalities. These ailments can spread through airborne droplets when an infected person coughs or sneezes and are often quite contagious. Disease progression varies and while some conditions—like a common cold—might resolve on their own in a week or two, others—like chronic sinusitis—can persist for months leading to more serious complications.