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 491.21
Obstructive chronic bronchitis with (acute) exacerbation 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 Therefore, this code may be out of date.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 491.21 can be accessed here. - 491.21 is a specific code that can be used to specify a diagnosis
- 491.21 contains 16 index entries
- View the ICD-9-CM Volume 1 491.* hierarchy
491.21 also known as:- Acute exacerbation of chronic obstructive pulmonary disease [COPD]
- Decompensated chronic obstructive pulmonary disease [COPD]
- Decompensated chronic obstructive pulmonary disease [COPD] with exacerbation
491.21 excludes: - chronic obstructive asthma with acute exacerbation 493.22
Index entries containing 491.21:- Blue
- bloater 491.20
- with
- exacerbation (acute)
 491.21
Bronchitis (diffuse) (hypostatic) (infectious) (inflammatory) (simple) 490- with
- obstruction airway, chronic 491.20
- with
- exacerbation (acute) 491.21
- chronic 491.9
- obstructive 491.20
- with
- exacerbation (acute) 491.21
- emphysematous 491.20
- with
- exacerbation (acute) 491.21
- obstructive (chronic) 491.20
- with
- exacerbation (acute) 491.21
Disease, diseased - see also Syndrome- lung NEC 518.89
- obstructive (chronic) (COPD) 496
- with
- acute
- exacerbation NEC 491.21
- bronchitis (chronic) 491.20
- with
- exacerbation (acute) 491.21
- decompensated 491.21
- with exacerbation 491.21
- with
- exacerbation (acute) 491.21
- pulmonary - see also Disease, lung
- diffuse obstructive (chronic) 496
- with
- exacerbation NEC (acute) 491.21
- obstructive diffuse (chronic) 496
- with
- exacerbation NEC (acute) 491.21
- decompensated 491.21
- with exacerbation 491.21
Embryoma (M9080/1) - see also Neoplasm, by site, uncertain behavior- malignant (M9080/3) - see also Neoplasm, by site, malignant
- testis (M9070/3) 186.9
- undescended 186.0
- exacerbation (acute) 491.21
Syndrome - see also Disease- autosomal - see also Abnormal, autosomes NEC
|
|
|
