J44.0: Chronic obstructive pulmonary disease with acute lower respiratory infection

Chronic obstructive pulmonary disease with acute lower respiratory infection, often referred to as COPD with acute lower respiratory infection, is a health condition where long-term damage to the lungs has reduced their capacity and ability to function, causing difficulty in breathing. This condition is further complicated by the presence of an acute infection in the lower respiratory tract. This infection can cause new or worsening symptoms such as a persistent cough, increased shortness of breath, and chest discomfort. People with this condition might also produce more phlegm or mucus than usual, and it may have a different color or texture, indicating an infection. Changes in energy levels, abnormal breathing sounds, and unexplained weight loss are other signs to look out for. The disease progression is often gradual but can be punctuated by severe episodes due to the added respiratory infections. Both illnesses primarily affect the respiratory system but can have knock-on effects throughout the body.