Code:
J45.90
Unspecified asthma
Asthmatic bronchitis NOS
Childhood asthma NOS
Late onset asthma
Parent Code Notes: J45
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)
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
Use additional code to identify:
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)
Block Notes
Chronic lower respiratory diseases (J40-J47)
Excludes 1: bronchitis due to chemicals, gases, fumes and vapors (J68.0)
Excludes 2: cystic fibrosis (E84.-)
Coding Guidelines
Diseases of the respiratory system (J00-J99)
Note: When a respiratory condition is described as occurring in more than one site and is not specifically indexed, it should be classified to the lower anatomic site (e.g. tracheobronchitis to bronchitis in J40).
Use additional code, where applicable, to identify:
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)
Excludes 2: certain conditions originating in the perinatal period (P04-P96)
certain infectious and parasitic diseases (A00-B99)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
injury, poisoning and certain other consequences of external causes (S00-T88)
neoplasms (C00-D49)
smoke inhalation (T59.81-)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)