B46: Zygomycosis
Codes under B46 (Zygomycosis). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| B46.0 | Pulmonary mucormycosis | ✓ |
| B46.0 | Pulmonary mucormycosis | ✓ |
| B46.1 | Rhinocerebral mucormycosis | ✓ |
| B46.1 | Rhinocerebral mucormycosis | ✓ |
| B46.2 | Gastrointestinal mucormycosis | ✓ |
| B46.2 | Gastrointestinal mucormycosis | ✓ |
| B46.3 | Cutaneous mucormycosis | ✓ |
| B46.3 | Cutaneous mucormycosis | ✓ |
| B46.4 | Disseminated mucormycosis | ✓ |
| B46.4 | Disseminated mucormycosis | ✓ |
| B46.5 | Mucormycosis, unspecified | ✓ |
| B46.5 | Mucormycosis, unspecified | ✓ |
| B46.8 | Other zygomycoses | ✓ |
| B46.8 | Other zygomycoses | ✓ |
| B46.9 | Zygomycosis, unspecified | ✓ |
| B46.9 | Zygomycosis, unspecified | ✓ |
Frequently asked questions
What is ICD-10-CM code B46?
B46 is an ICD-10-CM category covering Zygomycosis. It contains 16 more specific diagnosis codes, 16 of which are billable.
Is B46 a billable code?
No — B46 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example B46.0 — Pulmonary mucormycosis). 16 of the 16 codes under B46 are billable.
What codes fall under B46?
B46 includes B46.0, B46.0, B46.1, B46.1, B46.2, plus 11 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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