B49 – Unspecified mycosis
ICD-10-CM 2027 diagnosis code · Mycoses
ICD-10-CM code
B49
- Code
B49(claims format:B49)- Description
- Unspecified mycosis
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 1. Certain infectious and parasitic diseases (A00-B99)
- Block
- B35-B49 Mycoses
Notes for B49
Applicable to:
- Fungemia NOS
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block B35-B49
Index terms for B49
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Fungemia NOS
- Pneumomycosis
- Keratomycosis
- Mycosis, mycotic
- Myositis, mycotic
- Bronchomycosis NOS
- Mycelium infection
- Cough, tea taster's
- Myositis, in, mycosis
- Meningitis, mycotic NEC
- Disease, diseased, mycotic
- Fungus, fungous, disease NOS
- Disease, diseased, fungus NEC
- Diarrhea, diarrheal, mycotic NEC
- Arthritis, arthritic, mycotic NEC
- Arthritis, arthritic, in, mycosis NEC
- Infection, infected, infective, fungus NOS
- Infection, infected, infective, mycotic NOS
- Infection, infected, infective, mycelium NOS
Frequently asked questions
What is ICD-10 code B49?
B49 is the ICD-10-CM code for unspecified mycosis, in the block B35-B49 (Mycoses).
Is B49 a billable code?
Yes. B49 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.