B46.9

Applicable To

• Phycomycosis NOS

Approximate Synonyms

• Zygomycosis

Clinical Information

• Any infection due to a fungus of the zygomycota phylum. The disease typically involves the rhino-facial-cranial area, lungs, gastrointestinal tract, skin, or less commonly other organ systems. The infecting fungi have a predilection for invading vessels of the arterial system, causing embolization and subsequent necrosis of surrounding tissue.

• Infection in humans and animals caused by fungi in the class zygomycetes. It includes mucormycosis and entomophthoramycosis. The latter is a tropical infection of subcutaneous tissue or paranasal sinuses caused by fungi in the order entomophthorales. Phycomycosis, closely related to zygomycosis, describes infection with members of phycomycetes, an obsolete classification.

Details

• B46.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

• The 2023 edition of ICD-10-CM B46.9 became effective on October 1, 2022.

• This is the American ICD-10-CM version of B46.9 – other international versions of ICD-10 B46.9 may differ.