B40 Blastomycosis

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Blastomycosis is B40 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
B35-B49: Mycoses (B35-B49)
Category B40
10 codes (8 billable)
FY2026 Status
Stable since FY2024
Excludes1
Not coded here. These conditions should NOT be coded together with B40.
  • Brazilian blastomycosis (B41.-)
  • keloidal blastomycosis (B48.0)

Official Coding Guidelines

HIV Infections (TOC entry)

a. Human Immunodeficiency Virus (HIV) Infections .............................................................. 19

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.1.a
Infectious agents causing diseases in other chapters (TOC)

b. Infectious agents as the cause of diseases classified to other chapters ................................. 22

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.1.b

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Cite This Page

Reference B40 with the canonical source and edition:

B40 — Blastomycosis. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/B40

Canonical URL: https://icd10codingpro.com/codes/B40

Related Codes

More Specific Codes

B40.0 Acute pulmonary blastomycosis B40.1 Chronic pulmonary blastomycosis B40.2 Pulmonary blastomycosis, unspecified B40.3 Cutaneous blastomycosis B40.7 Disseminated blastomycosis B40.8 Other forms of blastomycosis B40.9 Blastomycosis, unspecified

All Codes in B40

Every most-specific code under B40 Blastomycosis (8 codes):

Show the complete B40 code list
B40.0 Acute pulmonary blastomycosis B40.1 Chronic pulmonary blastomycosis B40.2 Pulmonary blastomycosis, unspecified B40.3 Cutaneous blastomycosis B40.7 Disseminated blastomycosis B40.81 Blastomycotic meningoencephalitis B40.89 Other forms of blastomycosis B40.9 Blastomycosis, unspecified
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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