Acute bronchitis

Definition

Rapid onset inflammation of the large airways in the lung, including any part of the bronchi. It is often viral in origin, e.g. myxovirus (i.e. influenza A,B,C, parainfluenza, HRS virus), adenovirus, and picoma viruses (e.g. rhinoviruses), mycoplasma and bacteria.

Exclusions

• Acute bronchitis due to chemical fumes (CA81.0)
• Acute chemical bronchitis (CA81.0)
• Acute noninfectious bronchitis (CA20.0)
• Chronic bronchitis, NOS (CA20.1)
• Mucopurulent chronic bronchitis (CA20.11)
• Simple chronic bronchitis (CA20.10)
• Tracheobronchitis, NOS (CA27)
• bronchitis, chronic: obstructive (CA22.1)
• tracheobronchitis: chronic (CA22)
• tracheobronchitis: chronic obstructive (CA22)

8 subordinate codes

• CA42.0Acute bronchitis due to Streptococcus
• CA42.1Acute bronchitis due to Rhinovirus
• CA42.2Acute bronchitis due to Respiratory syncytial virus
• CA42.3Acute bronchitis due to Parainfluenza virus
• CA42.4Acute bronchitis due to Haemophilus influenzae
• CA42.5Acute bronchitis due to Coxsackievirus
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified

Nearby in Lung infections

• CA40Pneumonia
• CA41Acute bronchiolitis
• CA43Abscess of lung or mediastinum
• CA44Pyothorax
• CA45Respiratory infections, not elsewhere classified
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified