ICD-10-CM · Chapter 1 · A00–B99
B40
Blastomycosis
Certain infectious and parasitic diseases
Heads up:this is a parent code. It's typically not directly billable — you need to drill down to a more specific child code (one with additional digits) to use on a claim.
Quick facts
- Code
- B40
- Type
- Category / header (non-billable)
- ICD-10-CM chapter
- Chapter 1 — Certain infectious and parasitic diseases
- Category
- B40
- Specificity
- 3 characters
How coders use this code
ICD-10-CM B40 is a category (header) for blastomycosis. It is generally not reported directly on a claim — coders drill down to a more specific child code (one with additional characters) that matches the documentation. Use the related codes below to find the billable code that fits, and verify against the annual NCHS/CMS guidelines.
Related codes in B40
- B40.0Acute pulmonary blastomycosis
- B40.1Chronic pulmonary blastomycosis
- B40.2Pulmonary blastomycosis, unspecified
- B40.3Cutaneous blastomycosis
- B40.7Disseminated blastomycosis
- B40.8Other forms of blastomycosis
- B40.81Blastomycotic meningoencephalitis
- B40.89Other forms of blastomycosis
- B40.9Blastomycosis, unspecified
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