Lung Conditions

The most frequently recorded ICD-10 code was J06.9 (acute upper respiratory infection, unspecified), appearing 961 times across the dataset. Chapter X (diseases of the respiratory system) had the highest presentation volume but the lowest code diversity relative to its burden, with only 58 codes generating 21.2% of all visits. Bronchoconstriction is caused by tightening of smooth muscle lining the airways, which restricts airflow. Lung infections, asthma, and COPD share the same underlying pathological triad of inflammation, immune dysregulation, and bronchoconstriction. COPD involves fibrotic scarring that progressively reduces lung capacity. Post-pandemic effects on care-seeking behaviour may have inflated the share of respiratory diagnoses in the study data, since data collection occurred approximately two years after the COVID-19 pandemic declaration.