Chapter 12: Diseases of the Respiratory System
ICD-11 codes CA00-CB7Z
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.
CA00-CA0Z
Upper respiratory tract disorders
CA00Acute nasopharyngitis
CA01Acute sinusitis
CA02Acute pharyngitis
CA03Acute tonsillitis
CA04Acute laryngopharyngitis
CA05Acute laryngitis or tracheitis
CA06Acute obstructive laryngitis or epiglottitis
CA07Acute upper respiratory infections of multiple and unspecified sites
CA08Vasomotor or allergic rhinitis
CA09Chronic rhinitis, nasopharyngitis or pharyngitis
CA0AChronic rhinosinusitis
CA0BSilent sinus syndrome
CA0CCyst or mucocele of nose or nasal sinus
CA0DDeviated nasal septum
CA0EHypertrophy of nasal turbinates
CA0FChronic diseases of tonsils or adenoids
CA0GChronic laryngitis or laryngotracheitis
CA0HDiseases of vocal cords or larynx, not elsewhere classified
CA0JNasal polyp
CA0KAbscess of upper respiratory tract
CA0YOther specified upper respiratory tract disorders
CA0ZUpper respiratory tract disorders, unspecified
CA20-CA2Z
Certain lower respiratory tract diseases
CA40-CA4Z
Lung infections
CA60-CA8Z
Lung diseases due to external agents
CA60Pneumoconiosis
CA80Airway disease due to specific organic dust
CA81Respiratory conditions due to inhalation of chemicals, gases, fumes or vapours
CA82Respiratory conditions due to other external agents
CA8YOther specified lung diseases due to external agents
CA8ZLung diseases due to external agents, unspecified
CA70-CA7Z
Pneumonitis
CB00-CB0Z
Respiratory diseases principally affecting the lung interstitium
CB00Acute respiratory distress syndrome
CB01Pulmonary oedema
CB02Pulmonary eosinophilia
CB03Idiopathic interstitial pneumonitis
CB04Primary interstitial lung diseases specific to infancy or childhood
CB05Interstitial lung diseases associated with systemic diseases
CB06Pulmonary alveolar microlithiasis
CB07Lymphangioleiomyomatosis
CB0YOther specified respiratory diseases principally affecting the lung interstitium
CB0ZRespiratory diseases principally affecting the lung interstitium, unspecified
CB20-CB2Z
Pleural, diaphragm or mediastinal disorders
CB20Pleural plaque
CB21Pneumothorax
CB22Diseases of mediastinum, not elsewhere classified
CB23Disorders of diaphragm
CB24Chylous effusion
CB25Fibrothorax
CB26Haemothorax
CB27Pleural effusion
CB2YOther specified pleural, diaphragm or mediastinal disorders
CB2ZPleural, diaphragm or mediastinal disorders, unspecified
CB60-CB64
Postprocedural disorders of the respiratory system
Frequently Asked Questions
What ICD-11 codes are in Chapter 12?
Chapter 12: Diseases of the Respiratory System covers ICD-11 codes CA00-CB7Z. It contains 8 code blocks with 76 top-level categories.
What conditions does ICD-11 Chapter 12 cover?
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. This chapter includes codes from CA00-CB7Z.
How is ICD-11 Chapter 12 different from ICD-10?
ICD-11 reorganized many chapters compared to ICD-10. Chapter 12 (Diseases of the Respiratory System) may include conditions that were in different ICD-10 chapters, and some conditions previously here may have moved. ICD-11 also adds new chapters for sleep-wake disorders, sexual health, and traditional medicine that did not exist in ICD-10.
How many code blocks are in ICD-11 Chapter 12?
Chapter 12 has 8 code blocks: CA00-CA0Z (Upper respiratory tract disorders), CA20-CA2Z (Certain lower respiratory tract diseases), CA40-CA4Z (Lung infections), CA60-CA8Z (Lung diseases due to external agents), and 4 more.
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