Bronchitis, Chronic

**Definition:** A subcategory of CHRONIC OBSTRUCTIVE PULMONARY DISEASE. The disease is characterized by hypersecretion of mucus accompanied by a chronic (more than 3 months in 2 consecutive years) productive cough. Infectious agents are a major cause of chronic bronchitis.

**Tree numbers:** - C01.748.099.567 - C08.127.446.567 - C08.381.495.146.567 - C08.381.495.389.500 - C08.730.099.567 - C23.550.291.500.875.750

**Synonyms:** - Chronic Bronchitis