ICD-10 Code B39.2 – Pulmonary histoplasmosis capsulati, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B39.2 – Pulmonary histoplasmosis capsulati, unspecified
What it is
B39.2 identifies pulmonary histoplasmosis caused by Histoplasma capsulatum when the record does not specify acute, chronic, or other detail. Use it for lung involvement only, not for disseminated disease.
Clinical signs
Clinical features vary; refer to documentation. Commonly documented findings include cough, chest discomfort, fever, and shortness of breath, with imaging showing pulmonary infiltrates or hilar adenopathy.
When to use this code
Use B39.2 when the provider documents pulmonary histoplasmosis capsulati and does not further characterize the infection. It also fits cases where the chart confirms lung involvement but lacks enough detail for a more specific histoplasmosis code. Check documentation if the disease is disseminated or site is unclear.
Do not use for
Do not use this code for histoplasmosis outside the lungs, including disseminated or unspecified systemic disease. Also avoid it when the record clearly names a different pulmonary histoplasmosis subtype.
Coding tip
Code the most specific histoplasmosis type documented; if pulmonary involvement is stated without subtype, B39.2 is appropriate.