ICD-10 Code B44.7 – Disseminated aspergillosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B44.7 – Disseminated aspergillosis
What it is
Disseminated aspergillosis is a widespread invasive infection caused by Aspergillus species. It means the fungus has spread beyond one site and is affecting multiple organs or systems.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include fever, respiratory symptoms, and evidence of infection in more than one organ, especially in immunocompromised patients.
When to use this code
Use B44.7 when the record clearly documents disseminated aspergillosis or invasive Aspergillus infection with spread beyond a single site. You may also use it when multiple involved sites are described and the provider identifies the infection as disseminated.
Do not infer dissemination from a positive culture alone. If the documentation only supports pulmonary aspergillosis, another code may be more appropriate.
Do not use for
Do not use this code for colonization, allergic aspergillosis, or localized disease without dissemination. Check documentation if the provider does not specify invasive or disseminated infection.
Coding tip
Query the provider when Aspergillus is noted but the record does not clearly state whether the infection is localized, invasive, or disseminated.