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J45

Asthma

Non-billableCategory

Chapter: 10. Diseases of the respiratory system

Section: J40-J4A - Chronic lower respiratory diseases

Coding Guidelines

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

Excludes1 (Mutually Exclusive)

These codes should never be used together with J45

  • J69.8 - detergent asthma (J69.8)
  • J60 - miner's asthma (J60)
  • R06.2 - wheezing NOS (R06.2)
  • J67.8 - wood asthma (J67.8)

Excludes2 (Not Included Here)

These conditions are not part of this code but may be reported additionally if documented

  • J44.89 - asthma with chronic obstructive pulmonary disease (J44.89)
  • J44.89 - chronic asthmatic (obstructive) bronchitis (J44.89)
  • J44.89 - chronic obstructive asthma (J44.89)
  • J44.89 - other specified chronic obstructive pulmonary disease (J44.89)

Use Additional Code

  • 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)

Specific Codes (5)

J45.2Category

Mild intermittent asthma

J45.3Category

Mild persistent asthma

J45.4Category

Moderate persistent asthma

J45.5Category

Severe persistent asthma

J45.9Category

Other and unspecified asthma

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