| A56.4 | Chlamydial infection of pharynx |
| J16.0 | Chlamydial pneumonia |
| J20.9 | Acute bronchitis, unspecified |
| J40 | Bronchitis, not specific as acute or chronic |
| J42 | Unspecified chronic bronchitis |
| Z11.8 | Encounter for screening for other infectious and parasitic diseases |
| A49.3 | Mycoplasma infection, unspecified site |
| B96.0 | Mycoplasma pneumoniae as the cause of disease |
| J15.7 | Pneumonia due to Mycoplasma pneumoniae |
| Z11.2 | Encounter for screening for other bacterial diseases |
| B30.2 | Viral pharyngoconjunctivitis |
| B34.0 | Adenovirus infection, unspecified |
| B97.0 | Adenovirus as the cause of disease |
| B97.21 | SARS-associated coronavirus as the cause of diseases classified elsewhere |
| B97.89 | Other viral agents as the cause of diseases classified elsewhere |
| J05.0 | Acute obstructive laryngitis (croup) |
| J06.9 | Acute upper respiratory infection, unspecified |
| J09.X1 | Influenza due to identified novel influenza A virus with pneumonia |
| J09.X2 | Influenza due to identified novel influenza A virus with other respiratory manifestations |
| J09.X3 | Influenza due to identified novel influenza A virus with gastrointestinal manifestations |
| J09.X9 | Influenza due to identified novel influenza A virus with other manifestations |
| J10.2 | Influenza due to other identified influenza virus w/gastrointestinal manifestations |
| J11.1 | Influenza due to unidentified influenza virus with other respiratory manifestations |
| J11.2 | Influenza due to unidentified influenza virus with gastrointestinal manifestations |
| J11.81 | Influenza due to unidentified influenza virus with encephalopathy |
| J11.82 | Influenza due to unidentified influenza virus with myocarditis |
| J12.9 | Viral pneumonia, unspecified |
| J20.4 | Acute bronchitis due to parainfluenza virus |
| J20.6 | Acute bronchitis due to rhinovirus |
| J21.9 | Acute bronchiolitis, unspecified |
| Z11.59 | Encounter for screening for other viral diseases |