Chronic pulmonary histoplasmosis capsulati

This code represents a persistent, long-term fungal infection of the lungs caused by Histoplasma capsulatum. It typically manifests as chronic cavitary lesions, fibrosis, or nodular infiltrates, often mimicking tuberculosis or lung cancer. Patients may experience cough, dyspnea, weight loss, and fatigue over an extended period.

Use this code for documented cases of chronic pulmonary histoplasmosis, confirmed by laboratory findings (e.g., culture, serology, antigen detection) or characteristic imaging. It applies when the infection has progressed beyond an acute phase and exhibits ongoing or recurrent pulmonary involvement. Documentation should clearly indicate the chronic nature of the disease.

• Ensure documentation specifies "chronic" to differentiate from acute or disseminated forms.
• Do not confuse with B39.0 (Acute pulmonary histoplasmosis capsulati) or B39.2 (Disseminated histoplasmosis capsulati).
• Code any associated complications, such as respiratory failure or hemoptysis, as secondary diagnoses.