ICD9Data.com   Free 2007 ICD-9-CM Database

2007 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Respiratory System 460-519 > Chronic Obstructive Pulmonary Disease And Allied Conditions 490-496 > Chronic Bronchitis 491.* > 2007 ICD-9-CM Diagnosis 491.1 Mucopurulent chronic bronchitis  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 491.1 can be accessed here. 491.1 is a specific code that can be used to specify a diagnosis 491.1 contains 8 index entries View the ICD-9-CM Volume 1 491.* hierarchy 491.1 also known as: Bronchitis (chronic) (recurrent): fetid mucopurulent purulent Index entries containing 491.1: Bronchitis (diffuse) (hypostatic) (infectious) (inflammatory) (simple) 490 chronic 491.9 mucopurulent 491.1 purulent 491.1 fetid (chronic) (recurrent) 491.1 mucopurulent (chronic) (recurrent) 491.1 acute or subacute 466.0 pituitous 491.1 purulent (chronic) (recurrent) 491.1 acute or subacute 466.0 with bronchospasm or obstruction 466.0 putrid 491.1 suppurative (chronic) 491.1 acute or subacute 466.0