Browse Disease Index: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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8  Diseases of the Respiratory System
490-496   Chronic Obstructive Pulmonary Disease and Allied Conditions
490   Bronchitis, not specified as acute or chronic
491   Chronic bronchitis
492   Emphysema
493   Asthma
494   Bronchiectasis
495   Extrinsic allergic alveolitis
496   Chronic airway obstruction, not elsewhere classified