Disseminated mucormycosis

This code represents a severe, widespread fungal infection caused by molds from the order Mucorales, affecting multiple organ systems throughout the body. It is characterized by rapid progression and high mortality, often seen in immunocompromised individuals.

Use this code when documentation clearly indicates a systemic mucormycosis infection that has spread beyond a localized site to involve multiple organs. This diagnosis is typically supported by positive fungal cultures, histopathology showing angioinvasion, and imaging findings consistent with disseminated disease in a susceptible patient.

• Ensure documentation specifies "disseminated" or "systemic" involvement; localized mucormycosis (e.g., pulmonary, rhinocerebral) has different codes.
• Always code any underlying immunocompromising condition (e.g., diabetes mellitus, malignancy, transplant status) as a primary or secondary diagnosis.
• Do not confuse with aspergillosis or candidiasis; these are distinct fungal infections with different ICD-10-CM codes.