Acute Cough

Acute cough is defined as a sudden onset of a cough that lasts less than three weeks, often resulting from an upper respiratory infection, allergies, or irritants. Key clinical points include: 1) Acute cough is typically self-limiting and resolves with the underlying cause; 2) It can be associated with other symptoms such as fever, sore throat, or nasal congestion; 3) Differential diagnosis should consider conditions like pneumonia or bronchitis. Etiologically, acute cough is often viral in nature, stemming from infections such as the common cold or influenza. Pathophysiologically, it results from irritation of the airway receptors, leading to a reflexive cough response. Clinically, patients may present with a dry or productive cough, and a thorough history and physical examination are essential to identify the underlying cause and guide treatment. Typical use cases for the ICD-10 code R05.1 include visits to primary care for cough associated with viral infections, allergies, or environmental irritants.