B44: Aspergillosis
Codes under B44 (Aspergillosis). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| B44.0 | Invasive pulmonary aspergillosis | ✓ |
| B44.0 | Invasive pulmonary aspergillosis | ✓ |
| B44.1 | Other pulmonary aspergillosis | ✓ |
| B44.1 | Other pulmonary aspergillosis | ✓ |
| B44.2 | Tonsillar aspergillosis | ✓ |
| B44.2 | Tonsillar aspergillosis | ✓ |
| B44.7 | Disseminated aspergillosis | ✓ |
| B44.7 | Disseminated aspergillosis | ✓ |
| B44.8 | Other forms of aspergillosis | — |
| B44.8 | Other forms of aspergillosis | — |
| B44.9 | Aspergillosis, unspecified | ✓ |
| B44.9 | Aspergillosis, unspecified | ✓ |
| B44.81 | Allergic bronchopulmonary aspergillosis | ✓ |
| B44.81 | Allergic bronchopulmonary aspergillosis | ✓ |
| B44.89 | Other forms of aspergillosis | ✓ |
| B44.89 | Other forms of aspergillosis | ✓ |
Frequently asked questions
What is ICD-10-CM code B44?
B44 is an ICD-10-CM category covering Aspergillosis. It contains 16 more specific diagnosis codes, 14 of which are billable.
Is B44 a billable code?
No — B44 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 B44.0 — Invasive pulmonary aspergillosis). 14 of the 16 codes under B44 are billable.
What codes fall under B44?
B44 includes B44.0, B44.0, B44.1, B44.1, B44.2, 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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