2008 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.* >  2008 ICD-9-CM Diagnosis 491.0
Simple 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 Therefore, this code may be out of date.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 491.0 can be accessed here. - 491.0 is a specific code that can be used to specify a diagnosis
- 491.0 contains 12 index entries
- View the ICD-9-CM Volume 1 491.* hierarchy
491.0 also known as:- Catarrhal bronchitis, chronic
- Smokers' cough
Index entries containing 491.0:- Bronchitis (diffuse) (hypostatic) (infectious) (inflammatory) (simple) 490
- catarrhal 490
- chronic
 491.0
- chronic 491.9
- catarrhal 491.0
- due to
- tobacco smoking 491.0
- simple 491.0
- smokers' 491.0
Bronchorrhea (chronic) (purulent) 491.0- acute 466.0
- with
- asthma - see Asthma
- bronchiolitis, acute 466.19
- due to respiratory syncytial virus 466.11
- bronchitis - see Bronchitis
- chronic obstructive pulmonary disease (COPD) 496
- emphysema - see Emphysema
- due to external agent - see Condition, respiratory, acute, due to
- acute 519.11
- exercise induced 493.81
Catarrh, catarrhal (inflammation) (see also condition) 460- bronchial 490
- chronic 491.0
- lung (see also Bronchitis) 490
- chronic 491.0
- pulmonary (see also Bronchitis) 490
- chronic 491.0
Cough 786.2- smokers' 491.0
Smokers'- bronchitis 491.0
- cough 491.0
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