Chapter 12: Diseases of the Respiratory System
ICD-11 to ICD-10 crosswalk mappings for codes CA00-CB7Z
175 ICD-11 codes in this chapter have ICD-10 crosswalk mappings from the WHO.
Covers upper and lower respiratory infections, asthma, COPD, pneumonia, influenza, bronchitis, and respiratory failure. ICD-11 introduces better classification for acute respiratory distress and COVID-related respiratory conditions.
Browse Other Chapters
CA00-CA0Z: Upper respiratory tract disorders
51 codes with ICD-10 mappings
CA00Acute nasopharyngitis1 mappingCA01Acute sinusitis4 mappingsCA02.0Acute bacterial pharyngitis1 mappingCA02.ZAcute pharyngitis, unspecified2 mappingsCA03.0Streptococcal tonsillitis1 mappingCA03.YOther specified acute tonsillitis1 mappingCA03.ZAcute tonsillitis, unspecified2 mappingsCA04Acute laryngopharyngitis1 mappingCA05.0Acute laryngitis2 mappingsCA05.1Acute tracheitis1 mappingCA05.2Acute laryngotracheitis1 mappingCA06.0Acute obstructive laryngitis1 mappingCA06.1Acute epiglottitis1 mappingCA06.ZAcute obstructive laryngitis or epiglottitis, unspecified1 mappingCA07.0Acute upper respiratory infection, site unspecified2 mappingsCA07.1Acute upper respiratory infections of multiple sites1 mappingCA08.00Allergic rhinitis due to pollen1 mappingCA08.01Allergic rhinitis due to other seasonal allergens1 mappingCA08.03Other allergic rhinitis1 mappingCA08.0ZAllergic rhinitis, unspecified1 mappingCA08.3Vasomotor rhinitis2 mappingsCA09.0Chronic rhinitis2 mappingsCA09.1Chronic nasopharyngitis1 mappingCA09.2Chronic pharyngitis1 mappingCA0A.YOther specified chronic rhinosinusitis1 mappingCA0A.ZChronic rhinosinusitis, unspecified3 mappingsCA0CCyst or mucocele of nose or nasal sinus1 mappingCA0DDeviated nasal septum1 mappingCA0EHypertrophy of nasal turbinates1 mappingCA0F.0Hypertrophy of tonsils1 mappingCA0F.1Hypertrophy of adenoids1 mappingCA0F.3Hypertrophy of tonsils with hypertrophy of adenoids1 mappingCA0F.YOther specified chronic diseases of tonsils or adenoids1 mappingCA0F.ZChronic diseases of tonsils or adenoids, unspecified3 mappingsCA0GChronic laryngitis or laryngotracheitis3 mappingsCA0H.0Paralysis of vocal cords or larynx1 mappingCA0H.1Polyp of vocal cord or larynx1 mappingCA0H.2Nodules of vocal cords1 mappingCA0H.3Oedema of larynx1 mappingCA0H.4Laryngeal spasm1 mappingCA0H.5Stenosis of larynx1 mappingCA0H.YOther specified diseases of vocal cords or larynx, not elsewhere classified1 mappingCA0H.ZDiseases of vocal cords or larynx, not elsewhere classified, unspecified1 mappingCA0J.0Polypoid sinus degeneration1 mappingCA0J.YOther specified nasal polyp1 mappingCA0J.ZNasal polyp, unspecified2 mappingsCA0K.0Retropharyngeal or parapharyngeal abscess2 mappingsCA0K.1Peritonsillar abscess1 mappingCA0K.ZAbscess of upper respiratory tract, unspecified1 mappingCA0YOther specified upper respiratory tract disorders4 mappingsCA0ZUpper respiratory tract disorders, unspecified4 mappings
CA20-CA2Z: Certain lower respiratory tract diseases
19 codes with ICD-10 mappings
CA20.10Simple chronic bronchitis1 mappingCA20.11Mucopurulent chronic bronchitis1 mappingCA20.12Mixed simple and mucopurulent chronic bronchitis1 mappingCA20.1ZChronic bronchitis, unspecified2 mappingsCA20.ZBronchitis, unspecified1 mappingCA21.0MacLeod syndrome1 mappingCA21.1Panlobular emphysema1 mappingCA21.2Centrilobular emphysema1 mappingCA21.ZEmphysema, unspecified3 mappingsCA22.0Chronic obstructive pulmonary disease with acute exacerbation, unspecified1 mappingCA22.1Certain specified chronic obstructive pulmonary disease1 mappingCA22.ZChronic obstructive pulmonary disease, unspecified3 mappingsCA23.02Allergic asthma, uncomplicated1 mappingCA23.12Non-allergic asthma, uncomplicated1 mappingCA23.32Unspecified asthma, uncomplicated4 mappingsCA24Bronchiectasis1 mappingCA25.0Classical cystic fibrosis1 mappingCA25.ZCystic fibrosis, unspecified4 mappingsCA2ZLower respiratory tract disease, unspecified1 mapping
CA40-CA4Z: Lung infections
36 codes with ICD-10 mappings
CA40.00Pneumonia due to Chlamydophila pneumoniae1 mappingCA40.01Pneumonia due to Escherichia coli1 mappingCA40.02Pneumonia due to Haemophilus influenzae1 mappingCA40.03Pneumonia due to Klebsiella pneumoniae1 mappingCA40.04Pneumonia due to Mycoplasma pneumoniae1 mappingCA40.05Pneumonia due to Pseudomonas aeruginosa1 mappingCA40.06Pneumonia due to Staphylococcus1 mappingCA40.07Pneumonia due to Streptococcus pneumoniae1 mappingCA40.08Pneumonia due to beta-haemolytic streptococcus1 mappingCA40.0YPneumonia due to other specified bacteria2 mappingsCA40.0ZBacterial pneumonia, unspecified4 mappingsCA40.10Pneumonia due to Adenovirus1 mappingCA40.11Pneumonia due to Respiratory syncytial virus1 mappingCA40.12Pneumonia due to parainfluenza virus1 mappingCA40.13Pneumonia due to Human metapneumovirus1 mappingCA40.1ZViral pneumonia, unspecified3 mappingsCA40.2ZFungal pneumonia, unspecified1 mappingCA40.YOther specified pneumonia1 mappingCA40.ZPneumonia, organism unspecified11 mappingsCA41.0Acute bronchiolitis due to respiratory syncytial virus1 mappingCA41.ZAcute bronchiolitis, unspecified3 mappingsCA42.0Acute bronchitis due to Streptococcus1 mappingCA42.1Acute bronchitis due to Rhinovirus1 mappingCA42.2Acute bronchitis due to Respiratory syncytial virus1 mappingCA42.3Acute bronchitis due to Parainfluenza virus1 mappingCA42.4Acute bronchitis due to Haemophilus influenzae1 mappingCA42.5Acute bronchitis due to Coxsackievirus1 mappingCA42.ZAcute bronchitis, unspecified3 mappingsCA43.0Gangrene or necrosis of lung1 mappingCA43.1Abscess of lung with pneumonia1 mappingCA43.2Abscess of lung without pneumonia1 mappingCA43.3Abscess of mediastinum1 mappingCA43.ZAbscess of lung or mediastinum, unspecified1 mappingCA44Pyothorax3 mappingsCA45Respiratory infections, not elsewhere classified1 mappingCA4ZLung infections, unspecified3 mappings
CA60-CA8Z: Lung diseases due to external agents
41 codes with ICD-10 mappings
CA60.00Pneumoconiosis due to talc dust1 mappingCA60.0YOther specified pneumoconiosis due to dust containing silica1 mappingCA60.0ZPneumoconiosis due to dust containing silica, unspecified1 mappingCA60.1Coal worker pneumoconiosis1 mappingCA60.2Pneumoconiosis due to mineral fibres including asbestos1 mappingCA60.3Pneumoconiosis associated with tuberculosis1 mappingCA60.4Aluminosis of lung1 mappingCA60.5Bauxite fibrosis of lung1 mappingCA60.6Berylliosis1 mappingCA60.7Graphite fibrosis of lung1 mappingCA60.8Siderosis1 mappingCA60.9Stannosis1 mappingCA60.ZPneumoconiosis, unspecified2 mappingsCA70.0Farmer lung1 mappingCA70.1Bagassosis1 mappingCA70.2Bird fancier lung1 mappingCA70.3Suberosis1 mappingCA70.4Malt worker lung1 mappingCA70.5Mushroom worker lung1 mappingCA70.6Maple bark stripper lung1 mappingCA70.7Air conditioner or humidifier lung1 mappingCA70.ZHypersensitivity pneumonitis due to organic dust, unspecified3 mappingsCA71.0Pneumonitis due to inhalation of food or vomit1 mappingCA71.1Pneumonitis due to oils or essences1 mappingCA71.ZPneumonitis due to solids or liquids, unspecified2 mappingsCA72Mendelson syndrome1 mappingCA80.0Byssinosis due to exposure to cotton1 mappingCA80.1Byssinosis due to exposure to flax1 mappingCA80.2Byssinosis due to exposure to cannabis1 mappingCA80.ZAirway disease due to specific organic dust, unspecified2 mappingsCA81.0Bronchitis or pneumonitis due to chemicals, gases, fumes or vapours1 mappingCA81.1Pulmonary oedema due to chemicals, gases, fumes or vapours1 mappingCA81.2Upper respiratory inflammation due to chemicals, gases, fumes or vapours, not elsewhere classified1 mappingCA81.YOther specified respiratory conditions due to inhalation of chemicals, gases, fumes or vapours2 mappingsCA81.ZRespiratory conditions due to inhalation of chemicals, gases, fumes or vapours, unspecified3 mappingsCA82.0Acute pulmonary manifestations due to radiation1 mappingCA82.1Chronic or other pulmonary manifestations due to radiation1 mappingCA82.2Acute drug-induced interstitial lung disorders1 mappingCA82.3Chronic drug-induced interstitial lung disorders1 mappingCA82.ZRespiratory conditions due to other external agents, unspecified4 mappingsCA8ZLung diseases due to external agents, unspecified2 mappings
CB00-CB0Z: Respiratory diseases principally affecting the lung interstitium
4 codes with ICD-10 mappings
CB20-CB2Z: Pleural, diaphragm or mediastinal disorders
11 codes with ICD-10 mappings
CB20Pleural plaque3 mappingsCB21.0Spontaneous tension pneumothorax1 mappingCB21.1Other spontaneous pneumothorax1 mappingCB21.ZPneumothorax, unspecified3 mappingsCB22.ZDisease of mediastinum, unspecified1 mappingCB23Disorders of diaphragm1 mappingCB24Chylous effusion1 mappingCB25Fibrothorax1 mappingCB26Haemothorax1 mappingCB27Pleural effusion2 mappingsCB2ZPleural, diaphragm or mediastinal disorders, unspecified4 mappings
CB60-CB64: Postprocedural disorders of the respiratory system
4 codes with ICD-10 mappings