Gastrointestinal mucormycosis

This code signifies a rare and severe fungal infection of the gastrointestinal tract caused by molds of the order Mucorales. It typically affects immunocompromised individuals and can lead to tissue necrosis, ulceration, and perforation.

Assign this code when documentation explicitly states a diagnosis of gastrointestinal mucormycosis. Supporting documentation would include pathology reports confirming the presence of Mucorales in GI tissue, endoscopic findings consistent with the infection, and clinical signs and symptoms.

• Ensure the documentation specifies "gastrointestinal" involvement, as mucormycosis can affect other body systems.
• Always look for underlying immunocompromising conditions (e.g., diabetes, malignancy, transplant) and code them as additional diagnoses.
• Do not confuse with other fungal infections of the GI tract; definitive diagnosis by culture or histology is crucial.