- Respiratory
- Acute Bronchitis (most common)
- Asthma
- Chronic Obstructive Pulmonary Disease (COPD)
- Pneumonia
- Post-infectious cough (or post-Bronchitic cough)
- Upper Respiratory
- Allergic Rhinitis
- Sinusitis or post-nasal drainage
- Common Cold
- Miscellaneous
- Congestive Heart Failure (CHF)
- Gastroesophageal Reflux Disease (GERD)
- Malignancy