All ICD10 Codes
Chapter 10

J00–J99: Diseases of the Respiratory System

Diseases of the Respiratory System diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
  • 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)
Use Additional Code
  • 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)
All CodesBillable Only
Internal Codes
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  • J45.5—

    Severe persistent asthma

  • J45.50—

    Severe persistent asthma, uncomplicated

  • J45.51—

    Severe persistent asthma with (acute) exacerbation

  • J45.52—

    Severe persistent asthma with status asthmaticus

  • J45.9—

    Other and unspecified asthma

  • J45.90—

    Unspecified asthma

  • J45.901—

    Unspecified asthma with (acute) exacerbation

  • J45.902—

    Unspecified asthma with status asthmaticus

  • J45.909—

    Unspecified asthma, uncomplicated

  • J45.99—

    Other asthma

  • J45.990—

    Exercise induced bronchospasm

  • J45.991—

    Cough variant asthma

  • J45.998—

    Other asthma

  • J47—

    Bronchiectasis

  • J47.0—

    Bronchiectasis with acute lower respiratory infection

  • J47.1—

    Bronchiectasis with (acute) exacerbation

  • J47.9—

    Bronchiectasis, uncomplicated

  • J4A—

    Chronic lung allograft dysfunction

  • J4A.0—

    Restrictive allograft syndrome

  • J4A.8—

    Other chronic lung allograft dysfunction

  • J4A.9—

    Chronic lung allograft dysfunction, unspecified

  • J60—

    Coalworker's pneumoconiosis

  • J61—

    Pneumoconiosis due to asbestos and other mineral fibers

  • J62—

    Pneumoconiosis due to dust containing silica

  • J62.0—

    Pneumoconiosis due to talc dust

  • J62.8—

    Pneumoconiosis due to other dust containing silica

  • J63—

    Pneumoconiosis due to other inorganic dusts

  • J63.0—

    Aluminosis (of lung)

  • J63.1—

    Bauxite fibrosis (of lung)

  • J63.2—

    Berylliosis

  • J63.3—

    Graphite fibrosis (of lung)

  • J63.4—

    Siderosis

  • J63.5—

    Stannosis

  • J63.6—

    Pneumoconiosis due to other specified inorganic dusts

  • J64—

    Unspecified pneumoconiosis

  • J65—

    Pneumoconiosis associated with tuberculosis

  • J66—

    Airway disease due to specific organic dust

  • J66.0—

    Byssinosis

  • J66.1—

    Flax-dressers' disease

  • J66.2—

    Cannabinosis

  • J66.8—

    Airway disease due to other specific organic dusts

  • J67—

    Hypersensitivity pneumonitis due to organic dust

  • J67.0—

    Farmer's lung

  • J67.1—

    Bagassosis

  • J67.2—

    Bird fancier's lung

  • J67.3—

    Suberosis

  • J67.4—

    Maltworker's lung

  • J67.5—

    Mushroom-worker's lung

  • J67.6—

    Maple-bark-stripper's lung

  • J67.7—

    Air conditioner and humidifier lung

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