J09-J18: Influenza and pneumonia

J16: Pneumonia due to other infectious organisms, not elsewhere classified

Pneumonia due to other infectious organisms, not elsewhere classified, is a group of conditions that involve inflammation of the lungs due to a variety of infectious agents that are not commonly associated with pneumonia. The organisms responsible for causing these diseases can be bacteria, viruses, fungi, or parasites, which are not typically classified under the common pneumonia-causing organisms. Transmission of these infections can occur through inhalation of droplets carrying the infectious agents, exposure to contaminated surfaces, or even through vector-borne pathways such as insect bites. Symptoms commonly include coughing with or without mucus, chest pain, fever, and difficulty breathing. As the disease progresses, it may lead to complications such as respiratory failure, lung abscesses, or sepsis. It primarily affects the respiratory system but can impact other body systems if the infection spreads.