Bronchiectasis

Intermittent productive cough with acute infection requiring a course of antibiotics at least twice a year

With incapacitating episodes of infection of two to four weeks total duration per year, or; daily productive cough with sputum that is at times purulent or blood-tinged and that requires prolonged (lasting four to six weeks) antibiotic usage more than twice a year

With incapacitating episodes of infection of four to six weeks total duration per year, or; near constant findings of cough with purulent sputum associated with anorexia, weight loss, and frank hemoptysis and requiring antibiotic usage almost continuously

With incapacitating episodes of infection of at least six weeks total duration per year