Other acute lower respiratory infections (J20-J22)
Codes J20-J22 cover acute infections of the lower respiratory system, including different types of bronchitis and bronchiolitis caused by various bacterial and viral agents.
This range specifies acute bronchitis (J20) with subcodes identifying causes like Mycoplasma pneumoniae (J20.0), Haemophilus influenzae (J20.1), streptococcus (J20.2), and multiple viruses such as coxsackievirus (J20.3), parainfluenza virus (J20.4), respiratory syncytial virus (J20.5), rhinovirus (J20.6), and echovirus (J20.7). It also includes bronchitis from other organisms like SARS-CoV-2 and adenoviruses (J20.8), as well as unspecified acute bronchitis (J20.9). Acute bronchiolitis (J21) codes similarly specify viral causes like respiratory syncytial virus (J21.0), human metapneumovirus (J21.1), and others (J21.8), plus unspecified cases (J21.9). The range ends with J22 for unspecified acute lower respiratory infections, encompassing severe infections and COVID-19-related illness. These codes help healthcare professionals accurately document and differentiate lower respiratory infections by pathogen, facilitating precise diagnosis and treatment planning.
Diseases of the respiratory system (J00–J99)
Other acute lower respiratory infections (J20-J22)
J20 Acute bronchitis
- J20.0 Acute bronchitis due to Mycoplasma pneumoniae
- J20.1 Acute bronchitis due to Hemophilus influenzae
- J20.2 Acute bronchitis due to streptococcus
- J20.3 Acute bronchitis due to coxsackievirus
- J20.4 Acute bronchitis due to parainfluenza virus
- J20.5 Acute bronchitis due to respiratory syncytial virus
- J20.6 Acute bronchitis due to rhinovirus
- J20.7 Acute bronchitis due to echovirus
- J20.8 Acute bronchitis due to other specified organisms
- J20.9 Acute bronchitis, unspecified
Acute bronchitis (J20)
- J22 Unspecified acute lower respiratory infection
Unspecified acute lower respiratory infection (J22)
Instructional Notations
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- chronic obstructive pulmonary disease with acute lower respiratory infection J44.0
