Other pulmonary aspergillosis

This code signifies a fungal infection of the lungs caused by Aspergillus species, excluding invasive pulmonary aspergillosis, chronic necrotizing aspergillosis, and aspergilloma. It encompasses various less common or unspecified forms of pulmonary aspergillosis.

Apply this code when documentation indicates pulmonary aspergillosis that doesn't fit the criteria for invasive, chronic necrotizing, or aspergilloma. This may include allergic bronchopulmonary aspergillosis (ABPA) or other less defined presentations. Supporting documentation should clearly state the diagnosis of pulmonary aspergillosis and rule out more specific forms.

• Differentiate carefully between this code and more specific pulmonary aspergillosis codes (e.g., invasive, chronic necrotizing, aspergilloma) based on physician documentation.
• Ensure the documentation specifies "pulmonary" involvement; otherwise, consider codes for aspergillosis of other sites.
• If the specific type of pulmonary aspergillosis is known (e.g., ABPA), verify if a more precise code exists within the B44 category before defaulting to this "other" code.