2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Respiratory System 460-519 > Chronic Obstructive Pulmonary Disease And Allied Conditions 490-496 > ICD-9-CM Diagnosis 494 Bronchiectasis Persistent abnormal dilatation of the bronchi. 494 is a non-specific code that cannot be used to specify a diagnosis ICD-9-CM Diagnosis 494.0 Bronchiectasis without acute exacerbation 494.0 is a specific code that can be used to specify a diagnosis 494.0 contains 12 index entries ICD-9-CM Diagnosis 494.1 Bronchiectasis with acute exacerbation 494.1 is a specific code that can be used to specify a diagnosis 494.1 contains 14 index entries