Chronic Obstructive Pulmonary Disease and Allied Conditions ICD 9 Codes (490-496)

CHRONIC OBSTRUCTIVE PULMONARY DISEASE AND ALLIED CONDITIONS (ICD 9 CODES: 490-496)

490       Bronchitis, not specified as acute or chronic

Bronchitis NOS:

catarrhal

with tracheitis NOS

Tracheobronchitis NOS

Excludes:    bronchitis:

allergic NOS (493.9)

asthmatic NOS (493.9)

due to fumes and vapors (506.0)

491       Chronic bronchitis

Excludes:    chronic obstructive asthma (493.2)

491.0    Simple chronic bronchitis

Catarrhal bronchitis, chronic

Smokers' cough

491.1    Mucopurulent chronic bronchitis

Bronchitis (chronic) (recurrent):

fetid

mucopurulent

purulent

491.2    Obstructive chronic bronchitis

Bronchitis:

emphysematous

obstructive (chronic) (diffuse)

Bronchitis with:

chronic airway obstruction

emphysema

Excludes: asthmatic bronchitis (acute) (NOS) 493.9

chronic obstructive asthma 493.2

491.20  Without exacerbation

Emphysema with chronic bronchitis

491.21  With (acute) exacerbation

Acute exacerbation of chronic obstructive pulmonary disease [COPD]

Decompensated chronic obstructive pulmonary disease [COPD]

Decompensated chronic obstructive pulmonary disease [COPD] with exacerbation

Excludes: chronic obstructive asthma with acute exacerbation 493.22

491.22  With acute bronchitis

491.8    Other chronic bronchitis

Chronic:

tracheitis

tracheobronchitis

491.9    Unspecified chronic bronchitis

492       Emphysema

492.0    Emphysematous bleb

Giant bullous emphysema

Ruptured emphysematous bleb

Tension pneumatocele

Vanishing lung

492.8    Other emphysema

Emphysema (lung or pulmonary):

NOS

centriacinar

centrilobular

obstructive

panacinar

panlobular

unilateral

vesicular

MacLeod's syndrome

Swyer-James syndrome

Unilateral hyperlucent lung

Excludes: emphysema:

with chronic bronchitis (491.20-491.22)

compensatory (518.2)

due to fumes and vapors (506.4)

interstitial (518.1)

newborn (770.2)

mediastinal (518.1)

surgical (subcutaneous) (998.81)

traumatic (958.7)

493       Asthma

Excludes:    wheezing NOS (786.07)

The following fifth-digit subclassification is for use with category 493.0-493.2, 493.9:

0 unspecified

1 with status asthmaticus

2 with (acute) exacerbation

493.0    Extrinsic asthma

[0-2]

Asthma:

allergic with stated cause

atopic

childhood

hay

platinum

Hay fever with asthma

Excludes: asthma: 

allergic NOS (493.9)

detergent (507.8)

miners' (500)

wood (495.8)

493.1    Intrinsic asthma

[0-2]

Late-onset asthma

493.2    Chronic obstructive asthma

[0-2]

Asthma with chronic obstructive pulmonary disease [COPD]

Chronic asthmatic bronchitis

Excludes: acute bronchitis (466.0)

chronic obstructive bronchitis (491.20-491.22)

493.8    Other forms of asthma

493.81  Exercise induced bronchospasm

493.82  Cough variant asthma

493.9    Asthma, unspecified

[0-2]

Asthma (bronchial) (allergic NOS)

Bronchitis:

allergic

asthmatic

494       Bronchiectasis

Bronchiectasis (fusiform) (postinfectious) (recurrent)

Bronchiolectasis

Excludes:    congenital (748.61)

tuberculous bronchiectasis (current disease) (011.5)

494.0    Bronchiectasis without acute exacerbation

494.1    Bronchiectasis with acute exacerbation

495       Extrinsic allergic alveolitis

Includes:     allergic alveolitis and pneumonitis due to inhaled organic dust particles of fungal, thermophilic actinomycete, or other origin

495.0    Farmers' lung

495.1    Bagassosis

495.2    Bird-fanciers' lung

Budgerigar-fanciers' disease or lung

Pigeon-fanciers' disease or lung

495.3    Suberosis

Cork-handlers' disease or lung

495.4    Malt workers' lung

Alveolitis due to Aspergillus clavatus

495.5    Mushroom workers' lung

495.6    Maple bark-strippers' lung

Alveolitis due to Cryptostroma corticale

495.7    "Ventilation" pneumonitis

Allergic alveolitis due to fungal, thermophilic actinomycete, and other organisms growing in ventilation [air conditioning] systems

495.8    Other specified allergic alveolitis and pneumonitis

Cheese-washers' lung

Coffee workers' lung

Fish-meal workers' lung

Furriers' lung

Grain-handlers' disease or lung

Pituitary snuff-takers' disease

Sequoiosis or red-cedar asthma

Wood asthma

495.9    Unspecified allergic alveolitis and pneumonitis

Alveolitis, allergic (extrinsic)

Hypersensitivity pneumonitis

496       Chronic airway obstruction, not elsewhere classified

Chronic:

nonspecific lung disease

obstructive lung disease

obstructive pulmonary disease [COPD] NOS

Note:    This code is not to be used with any code from categories 491-493

Excludes:    chronic obstructive lung disease [COPD] specified (as) (with):

allergic alveolitis (495.0-495.9)

asthma (493.2)

bronchiectasis (494.0-494.1)

bronchitis (491.20-491.22)

with emphysema (491.20-491.22)

decompensated (491.21)

emphysema (492.0-492.8)