Invasive pulmonary aspergillosis

This code represents a severe fungal infection of the lungs caused by Aspergillus species, characterized by tissue invasion and destruction. It typically affects immunocompromised individuals, leading to significant morbidity and mortality. The infection can manifest as pneumonia, cavitary lesions, or diffuse infiltrates.

Use this code when documentation clearly indicates a diagnosis of invasive pulmonary aspergillosis, often confirmed by histopathology, culture, or molecular testing from lung tissue or bronchoalveolar lavage. This diagnosis is commonly seen in patients with prolonged neutropenia, organ transplantation, or high-dose corticosteroid therapy.

• Differentiate from non-invasive forms of aspergillosis, such as aspergilloma or allergic bronchopulmonary aspergillosis, which have different codes.
• Always sequence this code as the primary diagnosis when it is the reason for the encounter or hospitalization.
• Ensure documentation specifies "invasive" to support the use of this specific code.