ICD-10-CM
ICD-10 code for Mycosis: B49
The ICD-10-CM index points "Mycosis" to B49, Unspecified mycosis. B49 is a billable code.
Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page
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Index subterms
A header groups codes and is not billed. A billable code is one you can report.
- B36.9cutaneous NEC, Superficial mycosis, unspecifiedBillable
- B36.9ear, Superficial mycosis, unspecifiedBillable
- B37.0mouth, Candidal stomatitisBillable
- B35.1nails, Tinea unguiumBillable
- B48.8opportunistic, Other specified mycosesBillable
- B36.9skin NEC, Superficial mycosis, unspecifiedBillable
- B48.8specified NEC, Other specified mycosesBillable
- B37.0stomatitis, Candidal stomatitisBillable
- B37.31vagina, vaginitis (candidal) (acute), Acute candidiasis of vulva and vaginaBillable
Related conditions
Related pages
- B49 code detailsNotes, nearby codes, CMS-HCC group
- Chapter 1Certain infectious and parasitic diseases
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Mycosis?
The ICD-10-CM index points "Mycosis" to B49, Unspecified mycosis. B49 is a billable code.
Is B49 billable?
Yes. B49 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What chapter is B49 in?
Chapter 1. Certain infectious and parasitic diseases.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.