Pneumonia due to other specified organism

This code signifies an inflammation of the lung tissue caused by a specific microorganism that is not typically classified as bacterial, viral, fungal, or mycoplasmal pneumonia. It encompasses pneumonias resulting from less common or unusual infectious agents.

Apply this code when the medical record clearly identifies a non-bacterial, non-viral, non-fungal, and non-mycoplasmal infectious agent as the cause of pneumonia. Documentation should specify the organism, such as Chlamydia pneumoniae (though often coded elsewhere if specified as such), Legionella pneumophila (if not specified as Legionnaires' disease), or other rare pathogens.

• Ensure the documentation explicitly states the causative organism and that it falls outside the categories of common bacterial, viral, fungal, or mycoplasmal pneumonia.
• Avoid using this code if the organism is unspecified or if it clearly falls into another specific pneumonia category (e.g., streptococcal, influenza).
• Always review the entire medical record for definitive organism identification to ensure accurate and specific coding.