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 491.8
Other 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 Therefore, this code may be out of date.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 491.8 can be accessed here. - 491.8 is a specific code that can be used to specify a diagnosis
- 491.8 contains 18 index entries
- View the ICD-9-CM Volume 1 491.* hierarchy
491.8 also known as:- Chronic:
- tracheitis
- tracheobronchitis
Index entries containing 491.8:- Bronchiolitis (acute) (infectious) (subacute) 466.19
- chronic (obliterative)
 491.8
- fibrosa obliterans 491.8
- obliterans 491.8
- with organizing pneumonia (B.O.O.P.) 516.8
- status post lung transplant 996.84
- obliterative (chronic) (diffuse) (subacute) 491.8
- due to fumes or vapors 506.4
Bronchitis (diffuse) (hypostatic) (infectious) (inflammatory) (simple) 490- with
- tracheitis 490
- chronic 491.8
- capillary 466.19
- chronic 491.8
- chronic 491.9
- with
- tracheitis (chronic) 491.8
- specified type NEC 491.8
- obliterans 491.8
- ulcerative 491.8
Infection, infected, infective (opportunistic) 136.9- trachea, chronic 491.8
Laryngotracheobronchitis (see also Bronchitis) 490- chronic 491.8
Tracheitis (acute) (catarrhal) (infantile) (membranous) (plastic) (pneumococcal) (septic) (suppurative) (viral) 464.10- with
- bronchitis 490
- chronic 491.8
- chronic 491.8
- with
- bronchitis (chronic) 491.8
- laryngitis (chronic) 476.1
- due to external agent - see Condition, respiratory, chronic, due to
Tracheobronchitis (see also Bronchitis) 490- chronic 491.8
- senile 491.8
Ulcer, ulcerated, ulcerating, ulceration, ulcerative 707.9- bronchitis 491.8
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