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)
Internal Codes
  • J47.9

    Bronchiectasis, uncomplicated

  • 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

  • J62.0

    Pneumoconiosis due to talc dust

  • J62.8

    Pneumoconiosis due to other dust containing silica

  • 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

  • J66.0

    Byssinosis

  • J66.1

    Flax-dressers' disease

  • J66.2

    Cannabinosis

  • J66.8

    Airway disease due to other specific organic dusts

  • 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

  • J67.8

    Hypersensitivity pneumonitis due to other organic dusts

  • J67.9

    Hypersensitivity pneumonitis due to unspecified organic dust

  • J68.0

    Bronchitis and pneumonitis due to chemicals, gases, fumes and vapors

  • J68.1

    Pulmonary edema due to chemicals, gases, fumes and vapors

  • J68.2

    Upper respiratory inflammation due to chemicals, gases, fumes and vapors, not elsewhere classified

  • J68.3

    Other acute and subacute respiratory conditions due to chemicals, gases, fumes and vapors

  • J68.4

    Chronic respiratory conditions due to chemicals, gases, fumes and vapors

  • J68.8

    Other respiratory conditions due to chemicals, gases, fumes and vapors

  • J68.9

    Unspecified respiratory condition due to chemicals, gases, fumes and vapors

  • J69.0

    Pneumonitis due to inhalation of food and vomit

  • J69.1

    Pneumonitis due to inhalation of oils and essences

  • J69.8

    Pneumonitis due to inhalation of other solids and liquids

  • J70.0

    Acute pulmonary manifestations due to radiation

  • J70.1

    Chronic and other pulmonary manifestations due to radiation

  • J70.2

    Acute drug-induced interstitial lung disorders

  • J70.3

    Chronic drug-induced interstitial lung disorders

  • J70.4

    Drug-induced interstitial lung disorders, unspecified

  • J70.5

    Respiratory conditions due to smoke inhalation

  • J70.8

    Respiratory conditions due to other specified external agents

  • J70.9

    Respiratory conditions due to unspecified external agent

  • J80

    Acute respiratory distress syndrome

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