B46
⚠ Non-billable
Zygomycosis
ICD-10-CM · FY2026 · Certain Infectious and Parasitic Diseases
Code
B46
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Certain Infectious and Parasitic Diseases
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code B46?
ICD-10-CM code B46 represents Zygomycosis. It is a non-billable header code requiring a more specific subcategory in the Certain Infectious and Parasitic Diseases chapter, effective October 1, 2025 – September 30, 2026.
Is B46 billable?
No. B46 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is B46 in?
B46 belongs to the Certain Infectious and Parasitic Diseases chapter (A00–B99) of ICD-10-CM.
Related codes in the B46 category
B46.0
Pulmonary mucormycosis
Billable
B46.1
Rhinocerebral mucormycosis
Billable
B46.2
Gastrointestinal mucormycosis
Billable
B46.3
Cutaneous mucormycosis
Billable
B46.4
Disseminated mucormycosis
Billable
B46.5
Mucormycosis, unspecified
Billable
B46.8
Other zygomycoses
Billable
B46.9
Zygomycosis, unspecified
Billable
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