B99-B99: Other infectious diseases

The group of conditions classified under "Other Infectious Diseases" generally refers to a broad array of illnesses caused by infectious agents such as viruses, bacteria, and parasites. These diseases can be contracted in various ways, including direct contact with an infected individual, animal, or insect, or indirectly through contaminated food, water, or environment. Common symptoms associated with these infectious diseases vary widely but often include fever, fatigue, muscle aches, and gastrointestinal upset. Disease progression can range from mild, short-term discomfort to severe, ongoing illness, depending on the specific disease and an individual's overall health status. These conditions can affect various systems in the body, depending on the nature of the infectious organism. For example, some infectious diseases primarily impact the respiratory system, like pneumonia, while others could target the nervous or digestive systems, like meningitis or hepatitis.