B40: Blastomycosis
Codes under B40 (Blastomycosis). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| B40.0 | Acute pulmonary blastomycosis | ✓ |
| B40.0 | Acute pulmonary blastomycosis | ✓ |
| B40.1 | Chronic pulmonary blastomycosis | ✓ |
| B40.1 | Chronic pulmonary blastomycosis | ✓ |
| B40.2 | Pulmonary blastomycosis, unspecified | ✓ |
| B40.2 | Pulmonary blastomycosis, unspecified | ✓ |
| B40.3 | Cutaneous blastomycosis | ✓ |
| B40.3 | Cutaneous blastomycosis | ✓ |
| B40.7 | Disseminated blastomycosis | ✓ |
| B40.7 | Disseminated blastomycosis | ✓ |
| B40.8 | Other forms of blastomycosis | — |
| B40.8 | Other forms of blastomycosis | — |
| B40.9 | Blastomycosis, unspecified | ✓ |
| B40.9 | Blastomycosis, unspecified | ✓ |
| B40.81 | Blastomycotic meningoencephalitis | ✓ |
| B40.81 | Blastomycotic meningoencephalitis | ✓ |
| B40.89 | Other forms of blastomycosis | ✓ |
| B40.89 | Other forms of blastomycosis | ✓ |
Frequently asked questions
What is ICD-10-CM code B40?
B40 is an ICD-10-CM category covering Blastomycosis. It contains 18 more specific diagnosis codes, 16 of which are billable.
Is B40 a billable code?
No — B40 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 B40.0 — Acute pulmonary blastomycosis). 16 of the 18 codes under B40 are billable.
What codes fall under B40?
B40 includes B40.0, B40.0, B40.1, B40.1, B40.2, plus 13 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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