ICD 11 codes (C)

ICD 11 codes starting with 1 2 3 4 5 6 7 8 9 10 11 12

ICD stands for International Classification of Diseases and ICD 11 is the 11th revision.

The International Classification of Diseases 11th Revision (ICD-11) is a global standard for health information and diagnostics. Developed by the WHO, ICD-11 provides a systematic framework for classifying diseases, disorders, injuries, and other related health conditions. This classification allows for detailed analysis of health trends and statistics worldwide, assisting in informing public health and clinical decision-making.

ICD-11 was officially adopted by the WHO in May 2019, marking a significant update from its predecessor, ICD-10. The new revision is fully electronic and has been designed to be more accessible and easier to implement, which is a significant shift from the paper-based ICD-10. Learn more...

ICD 11 Code	ICD 11 Description
	-Diseases of the respiratory system
	-- Upper respiratory tract disorders
CA00	- - Acute nasopharyngitis
CA01	- - Acute sinusitis
CA02	- - Acute pharyngitis
CA02.0	- - - Acute pharyngitis due to other bacteria
CA02.1	- - - Acute viral pharyngitis
CA02.10	- - - - Pharyngitis due to Adenovirus
CA02.1Y	- - - - Other specified acute viral pharyngitis
CA02.1Z	- - - - Acute viral pharyngitis, unspecified
CA02.Y	- - - Other specified acute pharyngitis
CA02.Z	- - - Acute pharyngitis, unspecified
CA03	- - Acute tonsillitis
CA03.0	- - - Streptococcal tonsillitis
CA03.Y	- - - Other specified acute tonsillitis
CA03.Z	- - - Acute tonsillitis, unspecified
CA04	- - Acute laryngopharyngitis
CA05	- - Acute laryngitis or tracheitis
CA05.0	- - - Acute laryngitis
CA05.1	- - - Acute tracheitis
CA05.2	- - - Acute laryngotracheitis
CA05.Y	- - - Other specified acute laryngitis or tracheitis
CA05.Z	- - - Acute laryngitis or tracheitis, unspecified
CA06	- - Acute obstructive laryngitis or epiglottitis
CA06.0	- - - Acute obstructive laryngitis
CA06.1	- - - Acute epiglottitis
CA06.Y	- - - Other specified acute obstructive laryngitis or epiglottitis
CA06.Z	- - - Acute obstructive laryngitis or epiglottitis, unspecified
CA07	- - Acute upper respiratory infections of multiple and unspecified sites
CA07.0	- - - Acute upper respiratory infection, site unspecified
CA07.1	- - - Acute upper respiratory infections of multiple sites
CA07.Y	- - - Other specified acute upper respiratory infections of multiple and unspecified sites
CA07.Z	- - - Acute upper respiratory infections of multiple and unspecified sites, unspecified
CA08	- - Vasomotor or allergic rhinitis
CA08.0	- - - Allergic rhinitis
CA08.00	- - - - Allergic rhinitis due to pollen
CA08.01	- - - - Allergic rhinitis due to other seasonal allergens
CA08.02	- - - - Allergic rhinitis due to house dust mite
CA08.03	- - - - Other allergic rhinitis
CA08.0Z	- - - - Allergic rhinitis, unspecified
CA08.1	- - - Non-allergic rhinitis
CA08.10	- - - - Non-allergic rhinitis with eosinophils
CA08.1Y	- - - - Other specified non-allergic rhinitis
CA08.1Z	- - - - Non-allergic rhinitis, unspecified
CA08.2	- - - Mixed rhinitis
CA08.3	- - - Vasomotor rhinitis
CA08.Y	- - - Mixed allergic and non-allergic rhinitis
CA08.Z	- - - Rhinitis, unspecified whether allergic or nonallergic
CA09	- - Chronic rhinitis, nasopharyngitis or pharyngitis
CA09.0	- - - Chronic rhinitis
CA09.1	- - - Chronic nasopharyngitis
CA09.2	- - - Chronic pharyngitis
CA09.Y	- - - Other specified chronic rhinitis, nasopharyngitis or pharyngitis
CA09.Z	- - - Chronic rhinitis, nasopharyngitis or pharyngitis, unspecified
CA0A	- - Chronic rhinosinusitis
CA0A.0	- - - Samter syndrome
CA0A.Y	- - - Other specified chronic rhinosinusitis
CA0A.Z	- - - Chronic rhinosinusitis, unspecified
CA0B	- - Silent sinus syndrome
CA0C	- - Cyst or mucocele of nose or nasal sinus
CA0D	- - Deviated nasal septum
CA0E	- - Hypertrophy of nasal turbinates
CA0F	- - Chronic diseases of tonsils or adenoids
CA0F.0	- - - Hypertrophy of tonsils
CA0F.1	- - - Hypertrophy of adenoids
CA0F.Y	- - - Other specified chronic diseases of tonsils or adenoids
CA0F.Z	- - - Chronic diseases of tonsils or adenoids, unspecified
CA0G	- - Chronic laryngitis or laryngotracheitis
CA0H	- - Diseases of vocal cords or larynx, not elsewhere classified
CA0H.0	- - - Paralysis of vocal cords or larynx
CA0H.1	- - - Polyp of vocal cord or larynx
CA0H.2	- - - Nodules of vocal cords
CA0H.3	- - - Oedema of larynx
CA0H.4	- - - Laryngeal spasm
CA0H.5	- - - Stenosis of larynx
CA0H.Y	- - - Other specified diseases of vocal cords or larynx, not elsewhere classified
CA0H.Z	- - - Diseases of vocal cords or larynx, not elsewhere classified, unspecified
CA0J	- - Nasal polyp
CA0J.0	- - - Polypoid sinus degeneration
CA0J.Y	- - - Other specified nasal polyp
CA0J.Z	- - - Nasal polyp, unspecified
CA0K	- - Abscess of upper respiratory tract
CA0K.0	- - - Retropharyngeal or parapharyngeal abscess
CA0K.1	- - - Peritonsillar abscess
CA0K.Y	- - - Other specified abscess of upper respiratory tract
CA0K.Z	- - - Abscess of upper respiratory tract, unspecified
CA0Y	- - Other specified upper respiratory tract disorders
CA0Z	- - Upper respiratory tract disorders, unspecified
	-- Certain lower respiratory tract diseases
CA20	- - Bronchitis
CA20.0	- - - Acute noninfectious bronchitis
CA20.1	- - - Chronic bronchitis
CA20.10	- - - - Simple chronic bronchitis
CA20.11	- - - - Mucopurulent chronic bronchitis
CA20.12	- - - - Mixed simple and mucopurulent chronic bronchitis
CA20.13	- - - - Protracted bacterial bronchitis
CA20.1Y	- - - - Other specified chronic bronchitis
CA20.1Z	- - - - Chronic bronchitis, unspecified
CA20.Y	- - - Other specified bronchitis
CA20.Z	- - - Bronchitis, unspecified
CA21	- - Emphysema
CA21.0	- - - MacLeod syndrome
CA21.1	- - - Panlobular emphysema
CA21.2	- - - Centrilobular emphysema
CA21.Y	- - - Other specified emphysema
CA21.Z	- - - Emphysema, unspecified
CA22	- - Chronic obstructive pulmonary disease
CA22.0	- - - Chronic obstructive pulmonary disease with acute exacerbation, unspecified
CA22.1	- - - Certain specified chronic obstructive pulmonary disease
CA22.Z	- - - Chronic obstructive pulmonary disease, unspecified
CA23	- - Asthma
CA23.0	- - - Allergic asthma
CA23.00	- - - - Allergic asthma with exacerbation
CA23.01	- - - - Allergic asthma with status asthmaticus
CA23.02	- - - - Allergic asthma, uncomplicated
CA23.0Z	- - - - Allergic asthma, unspecified
CA23.1	- - - Non-allergic asthma
CA23.10	- - - - Non-allergic asthma with exacerbation
CA23.11	- - - - Non-allergic asthma with status asthmaticus
CA23.12	- - - - Non-allergic asthma, uncomplicated
CA23.2	- - - Other specified forms of asthma or bronchospasm
CA23.20	- - - - Aspirin-induced asthma
CA23.21	- - - - Exercise-induced bronchospasm
CA23.22	- - - - Cough variant asthma
CA23.3	- - - Unspecified asthma
CA23.30	- - - - Unspecified asthma with exacerbation
CA23.31	- - - - Unspecified asthma with status asthmaticus
CA23.32	- - - - Unspecified asthma, uncomplicated
CA24	- - Bronchiectasis
CA25	- - Cystic fibrosis
CA25.0	- - - Classical cystic fibrosis
CA25.1	- - - Atypical cystic fibrosis
CA25.2	- - - Subclinical cystic fibrosis
CA25.Z	- - - Cystic fibrosis, unspecified
CA26	- - Chronic bronchiolitis
CA26.0	- - - Chronic obliterative bronchiolitis
CA26.1	- - - Diffuse panbronchiolitis
CA26.Y	- - - Other specified chronic bronchiolitis
CA26.Z	- - - Chronic bronchiolitis, unspecified
CA27	- - Tracheobronchitis
CA27.0	- - - Tracheobronchopathia osteochondroplastica
CA27.1	- - - Tracheobronchomegaly
CA27.Y	- - - Other specified tracheobronchitis
CA27.Z	- - - Tracheobronchitis, unspecified
CA2Y	- - Other specified lower respiratory tract disease
CA2Z	- - Lower respiratory tract disease, unspecified
	-- Lung infections
CA40	- - Pneumonia
CA40.0	- - - Bacterial pneumonia
CA40.00	- - - - Pneumonia due to Chlamydophila pneumoniae
CA40.01	- - - - Pneumonia due to Escherichia coli
CA40.02	- - - - Pneumonia due to Haemophilus influenzae
CA40.03	- - - - Pneumonia due to Klebsiella pneumoniae
CA40.04	- - - - Pneumonia due to Mycoplasma pneumoniae
CA40.05	- - - - Pneumonia due to Pseudomonas aeruginosa
CA40.06	- - - - Pneumonia due to Staphylococcus
CA40.07	- - - - Pneumonia due to Streptococcus pneumoniae
CA40.08	- - - - Pneumonia due to Beta-haemolytic streptococcus
CA40.0Y	- - - - Pneumonia due to other specified bacteria
CA40.0Z	- - - - Bacterial pneumonia, unspecified
CA40.1	- - - Viral pneumonia
CA40.10	- - - - Pneumonia due to Adenovirus
CA40.11	- - - - Pneumonia due to Respiratory syncytial virus
CA40.12	- - - - Pneumonia due to parainfluenza virus
CA40.13	- - - - Pneumonia due to Human metapneumovirus
CA40.1Y	- - - - Pneumonia due to other specified virus
CA40.1Z	- - - - Viral pneumonia, unspecified
CA40.2	- - - Fungal pneumonia
CA40.20	- - - - Pneumonia due to pneumocystis
CA40.2Y	- - - - Other specified fungal pneumonia
CA40.2Z	- - - - Fungal pneumonia, unspecified
CA40.Y	- - - Other specified pneumonia
CA40.Z	- - - Pneumonia, organism unspecified
CA41	- - Acute bronchiolitis
CA41.0	- - - Acute bronchiolitis due to respiratory syncytial virus
CA41.Y	- - - Other specified acute bronchiolitis
CA41.Z	- - - Acute bronchiolitis, unspecified
CA42	- - Acute bronchitis
CA42.0	- - - Acute bronchitis due to Streptococcus
CA42.1	- - - Acute bronchitis due to Rhinovirus
CA42.2	- - - Acute bronchitis due to Respiratory syncytial virus
CA42.3	- - - Acute bronchitis due to Parainfluenza virus
CA42.4	- - - Acute bronchitis due to Haemophilus influenzae
CA42.5	- - - Acute bronchitis due to Coxsackievirus
CA42.Y	- - - Other specified acute bronchitis
CA42.Z	- - - Acute bronchitis, unspecified
CA43	- - Abscess of lung or mediastinum
CA43.0	- - - Gangrene or necrosis of lung
CA43.1	- - - Abscess of lung with pneumonia
CA43.2	- - - Abscess of lung without pneumonia
CA43.3	- - - Abscess of mediastinum
CA43.Y	- - - Other specified abscess of lung or mediastinum
CA43.Z	- - - Abscess of lung or mediastinum, unspecified
CA44	- - Pyothorax
CA45	- - Respiratory infections, not elsewhere classified
CA4Y	- - Other specified lung infections
CA4Z	- - Lung infections, unspecified
	-- Lung diseases due to external agents
CA60	- - Pneumoconiosis
CA60.0	- - - Pneumoconiosis due to dust containing silica
CA60.00	- - - - Pneumoconiosis due to talc dust
CA60.0Y	- - - - Other specified pneumoconiosis due to dust containing silica
CA60.0Z	- - - - Pneumoconiosis due to dust containing silica, unspecified
CA60.1	- - - Coal worker pneumoconiosis
CA60.2	- - - Pneumoconiosis due to mineral fibres including asbestos
CA60.3	- - - Pneumoconiosis associated with tuberculosis
CA60.4	- - - Aluminosis of lung
CA60.5	- - - Bauxite fibrosis of lung
CA60.6	- - - Berylliosis
CA60.7	- - - Graphite fibrosis of lung
CA60.8	- - - Siderosis
CA60.9	- - - Stannosis
CA60.Y	- - - Other specified pneumoconiosis
	-- - Pneumonitis
CA70	- - - Hypersensitivity pneumonitis due to organic dust
CA70.0	- - - - Farmer lung
CA70.1	- - - - Bagassosis
CA70.2	- - - - Bird fancier lung
CA70.3	- - - - Suberosis
CA70.4	- - - - Malt worker lung
CA70.5	- - - - Mushroom worker lung
CA70.6	- - - - Maple bark stripper lung
CA70.7	- - - - Air conditioner or humidifier lung
CA70.Y	- - - - Other specified hypersensitivity pneumonitis due to organic dust
CA70.Z	- - - - Hypersensitivity pneumonitis due to organic dust, unspecified
CA71	- - - Pneumonitis due to solids and liquids
CA71.0	- - - - Pneumonitis due to inhalation of food or vomit
CA71.1	- - - - Pneumonitis due to oils or essences
CA71.2	- - - - Pneumonitis due to aspiration of blood
CA71.3	- - - - Lipoid pneumonitis
CA71.Y	- - - - Other specified pneumonitis due to solids and liquids
CA71.Z	- - - - Pneumonitis due to solids and liquids, unspecified
CA72	- - - Mendelson syndrome
CA7Y	- - - Other specified pneumonitis
CA7Z	- - - Pneumonitis, unspecified
CA80	- - Airway disease due to specific organic dust
CA80.0	- - - Byssinosis
CA80.1	- - - Flax-dresser disease
CA80.2	- - - Cannabinosis
CA80.Y	- - - Other specified airway disease due to specific organic dust
CA80.Z	- - - Airway disease due to specific organic dust, unspecified
CA81	- - Respiratory conditions due to inhalation of chemicals, gases, fumes or vapours
CA81.0	- - - Bronchitis or pneumonitis due to chemicals, gases, fumes or vapours
CA81.1	- - - Pulmonary oedema due to chemicals, gases, fumes or vapours
CA81.2	- - - Upper respiratory inflammation due to chemicals, gases, fumes or vapours, not elsewhere classified
CA81.Y	- - - Other specified respiratory conditions due to inhalation of chemicals, gases, fumes or vapours
CA81.Z	- - - Respiratory conditions due to inhalation of chemicals, gases, fumes or vapours, unspecified
CA82	- - Respiratory conditions due to other external agents
CA82.0	- - - Acute pulmonary manifestations due to radiation
CA82.1	- - - Chronic or other pulmonary manifestations due to radiation
CA82.2	- - - Acute drug-induced interstitial lung disorders
CA82.3	- - - Chronic drug-induced interstitial lung disorders
CA82.4	- - - Aspergillus-induced allergic or hypersensitivity conditions
CA82.Y	- - - Other specified respiratory conditions due to other external agents
CA82.Z	- - - Respiratory conditions due to other external agents, unspecified
CA8Y	- - Other specified lung diseases due to external agents
CA8Z	- - Lung diseases due to external agents, unspecified
	-- Respiratory diseases principally affecting the lung interstitium
CB00	- - Acute respiratory distress syndrome
CB01	- - Pulmonary oedema
CB02	- - Pulmonary eosinophilia
CB02.0	- - - Asthmatic pulmonary eosinophilia
CB02.1	- - - Idiopathic eosinophilic pneumonitis
CB02.10	- - - - Idiopathic acute eosinophilic pneumonitis
CB02.11	- - - - Idiopathic chronic eosinophilic pneumonitis
CB02.1Y	- - - - Other specified idiopathic eosinophilic pneumonitis
CB02.1Z	- - - - Idiopathic eosinophilic pneumonitis, unspecified
CB02.2	- - - Tropical pulmonary eosinophilia
CB02.Y	- - - Other specified pulmonary eosinophilia
CB02.Z	- - - Pulmonary eosinophilia, unspecified
CB03	- - Idiopathic interstitial pneumonitis
CB03.0	- - - Acute interstitial pneumonitis
CB03.1	- - - Combined pulmonary fibrosis and emphysema syndrome
CB03.2	- - - Cryptogenic organizing pneumonitis
CB03.3	- - - Desquamative interstitial pneumonitis
CB03.4	- - - Idiopathic pulmonary fibrosis
CB03.5	- - - Lymphoid interstitial pneumonia
CB03.6	- - - Respiratory bronchiolitis - interstitial lung disease
CB03.Y	- - - Other specified idiopathic interstitial pneumonitis
CB03.Z	- - - Idiopathic interstitial pneumonitis, unspecified
CB04	- - Primary interstitial lung diseases specific to infancy or childhood
CB04.0	- - - Diffuse pulmonary developmental disorders
CB04.1	- - - Pulmonary lymphatic dysplasia syndromes
CB04.2	- - - Disorders of surfactant metabolism
CB04.3	- - - Alveolar or peri-alveolar conditions
CB04.30	- - - - Idiopathic pulmonary haemosiderosis
CB04.31	- - - - Pulmonary alveolar proteinosis
CB04.3Y	- - - - Other specified alveolar or peri-alveolar conditions
CB04.3Z	- - - - Alveolar or peri-alveolar conditions, unspecified
CB04.4	- - - Pulmonary capillaritis
CB04.5	- - - Brain-lung-thyroid syndrome
CB04.6	- - - Chronic pneumonitis of infancy
CB04.7	- - - Neuroendocrine cell hyperplasia of infancy
CB04.Y	- - - Other specified primary interstitial lung diseases specific to infancy or childhood
CB04.Z	- - - Primary interstitial lung diseases specific to infancy or childhood, unspecified
CB05	- - Interstitial lung diseases associated with systemic diseases
CB05.0	- - - Diffuse alveolar damage
CB05.1	- - - Interstitial lung diseases associated with connective tissue diseases
CB05.2	- - - Interstitial lung diseases associated with granulomatous diseases
CB05.3	- - - Interstitial lung diseases associated with metabolic diseases
CB05.4	- - - Interstitial lung diseases associated with systemic vasculitides
CB05.40	- - - - Respiratory disorders in Churg-Strauss syndrome
CB05.41	- - - - Respiratory disorders in microscopic polyangiitis
CB05.4Y	- - - - Other specified interstitial lung diseases associated with systemic vasculitides
CB05.4Z	- - - - Interstitial lung diseases associated with systemic vasculitides, unspecified
CB05.5	- - - Secondary pulmonary haemosiderosis
CB05.Y	- - - Other specified interstitial lung diseases associated with systemic diseases
CB05.Z	- - - Interstitial lung diseases associated with systemic diseases, unspecified
CB06	- - Pulmonary alveolar microlithiasis
CB07	- - Lymphangioleiomyomatosis
CB07.0	- - - Lymphangioleiomyomatosis associated with tuberous sclerosis complex
CB07.1	- - - Sporadic lymphangioleiomyomatosis
CB07.Y	- - - Other specified lymphangioleiomyomatosis
CB07.Z	- - - Lymphangioleiomyomatosis, unspecified
CB0Y	- - Other specified respiratory diseases principally affecting the lung interstitium
CB0Z	- - Respiratory diseases principally affecting the lung interstitium, unspecified
	-- Pleural, diaphragm or mediastinal disorders
CB20	- - Pleural plaque
CB21	- - Pneumothorax
CB21.0	- - - Spontaneous tension pneumothorax
CB21.1	- - - Other spontaneous pneumothorax
CB21.Y	- - - Other specified pneumothorax
CB21.Z	- - - Pneumothorax, unspecified
CB22	- - Diseases of mediastinum, not elsewhere classified
CB22.0	- - - Fibrosing mediastinitis
CB22.Y	- - - Other specified diseases of mediastinum, not elsewhere classified
CB22.Z	- - - Diseases of mediastinum, not elsewhere classified, unspecified
CB23	- - Disorders of diaphragm
CB24	- - Chylous effusion
CB25	- - Fibrothorax
CB26	- - Haemothorax
CB27	- - Pleural effusion
CB2Y	- - Other specified pleural, diaphragm or mediastinal disorders
CB2Z	- - Pleural, diaphragm or mediastinal disorders, unspecified
CB40	- Certain diseases of the respiratory system]]
CB40.0	- - Ciliary dyskinesia
CB40.1	- - Young syndrome
CB40.2	- - Pulmonary collapse
CB40.3	- - Interstitial emphysema
CB40.4	- - Compensatory emphysema
CB40.Y	- - Other specified diseases of the respiratory system
CB41	- Respiratory failure]]
CB41.0	- - Acute respiratory failure
CB41.00	- - - Acute respiratory failure, Type I
CB41.01	- - - Acute respiratory failure, Type II
CB41.0Z	- - - Acute respiratory failure, unspecified
CB41.1	- - Chronic respiratory failure
CB41.10	- - - Chronic respiratory failure, Type I
CB41.11	- - - Chronic respiratory failure, Type II
CB41.1Z	- - - Chronic respiratory failure, unspecified
CB41.2	- - Respiratory failure, unspecified as acute or chronic
CB41.20	- - - Respiratory failure, unspecified, Type I
CB41.21	- - - Respiratory failure, unspecified, Type II
CB41.2Z	- - - Respiratory failure, unspecified
	-- Postprocedural disorders of the respiratory system
CB60	- - Tracheostomy malfunction
CB61	- - Chronic pulmonary insufficiency following surgery
CB62	- - Postprocedural subglottic stenosis
CB63	- - Postprocedural stenosis of the trachea
CB64	- - Transfusion related acute lung injury
CB7Z	- Diseases of the respiratory system, unspecified]]