A diagnosis of chronic bronchitis requires a history of a chronic productive cough that has persisted for at least 3 consecutive months in at least 2 consecutive years.

A diagnosis of chronic bronchitis requires a history of a respiratory infection that occurs every 3 consecutive months in at least 2 consecutive years.

A diagnosis of chronic bronchitis requires a chest x-ray that shows a tubercle bacillus that has been present for at least 2 consecutive years.

A diagnosis of chronic bronchitis requires you to have been hospitalized at least one time in at least 2 consecutive years with shortness of breath.