Chronic lower respiratory diseases (J40-J47)
J45: Asthma

includes
allergic (predominantly) asthma
allergic bronchitis NOS
allergic rhinitis with asthma
atopic asthma
extrinsic allergic asthma
hay fever with asthma
idiosyncratic asthma
intrinsic nonallergic asthma
nonallergic asthma

useAdditionalCode
code to identify:
eosinophilic asthma (J82.83)
exposure to environmental tobacco smoke (Z77.22)
exposure to tobacco smoke in the perinatal period (P96.81)
history of tobacco dependence (Z87.891)
occupational exposure to environmental tobacco smoke (Z57.31)
tobacco dependence (F17.-)
tobacco use (Z72.0)

excludes1
detergent asthma (J69.8)
eosinophilic asthma (J82)
miner's asthma (J60)
wheezing NOS (R06.2)
wood asthma (J67.8)

excludes2
asthma with chronic obstructive pulmonary disease (J44.9)
chronic asthmatic (obstructive) bronchitis (J44.9)
chronic obstructive asthma (J44.9)
J45.2: Mild intermittent asthma
J45.3: Mild persistent asthma
J45.4: Moderate persistent asthma
J45.5: Severe persistent asthma
J45.9: Other and unspecified asthma

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