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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  • J38.01—

    Paralysis of vocal cords and larynx, unilateral

  • J38.02—

    Paralysis of vocal cords and larynx, bilateral

  • J38.1—

    Polyp of vocal cord and larynx

  • J38.2—

    Nodules of vocal cords

  • J38.3—

    Other diseases of vocal cords

  • J38.4—

    Edema of larynx

  • J38.5—

    Laryngeal spasm

  • J38.6—

    Stenosis of larynx

  • J38.7—

    Other diseases of larynx

  • J39.0—

    Retropharyngeal and parapharyngeal abscess

  • J39.1—

    Other abscess of pharynx

  • J39.2—

    Other diseases of pharynx

  • J39.3—

    Upper respiratory tract hypersensitivity reaction, site unspecified

  • J39.8—

    Other specified diseases of upper respiratory tract

  • J39.9—

    Disease of upper respiratory tract, unspecified

  • J40—

    Bronchitis, not specified as acute or chronic

  • J41.0—

    Simple chronic bronchitis

  • J41.1—

    Mucopurulent chronic bronchitis

  • J41.8—

    Mixed simple and mucopurulent chronic bronchitis

  • J42—

    Unspecified chronic bronchitis

  • J43.0—

    Unilateral pulmonary emphysema [MacLeod's syndrome]

  • J43.1—

    Panlobular emphysema

  • J43.2—

    Centrilobular emphysema

  • J43.8—

    Other emphysema

  • J43.9—

    Emphysema, unspecified

  • J44.0—

    Chronic obstructive pulmonary disease with (acute) lower respiratory infection

  • J44.1—

    Chronic obstructive pulmonary disease with (acute) exacerbation

  • J44.81—

    Bronchiolitis obliterans and bronchiolitis obliterans syndrome

  • J44.89—

    Other specified chronic obstructive pulmonary disease

  • J44.9—

    Chronic obstructive pulmonary disease, unspecified

  • J45.20—

    Mild intermittent asthma, uncomplicated

  • J45.21—

    Mild intermittent asthma with (acute) exacerbation

  • J45.22—

    Mild intermittent asthma with status asthmaticus

  • J45.30—

    Mild persistent asthma, uncomplicated

  • J45.31—

    Mild persistent asthma with (acute) exacerbation

  • J45.32—

    Mild persistent asthma with status asthmaticus

  • J45.40—

    Moderate persistent asthma, uncomplicated

  • J45.41—

    Moderate persistent asthma with (acute) exacerbation

  • J45.42—

    Moderate persistent asthma with status asthmaticus

  • J45.50—

    Severe persistent asthma, uncomplicated

  • J45.51—

    Severe persistent asthma with (acute) exacerbation

  • J45.52—

    Severe persistent asthma with status asthmaticus

  • J45.901—

    Unspecified asthma with (acute) exacerbation

  • J45.902—

    Unspecified asthma with status asthmaticus

  • J45.909—

    Unspecified asthma, uncomplicated

  • J45.990—

    Exercise induced bronchospasm

  • J45.991—

    Cough variant asthma

  • J45.998—

    Other asthma

  • J47.0—

    Bronchiectasis with acute lower respiratory infection

  • J47.1—

    Bronchiectasis with (acute) exacerbation

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