B37.9 – Candidiasis, unspecified

ICD-10-CM 2027 diagnosis code · Mycoses

Billable code

ICD-10-CM code B37.9

Code: B37.9 (claims format: B379)
Description: Candidiasis, unspecified
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
Parent codes: B37

Notes for B37.9

Applicable to:

Thrush NOS

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

B37 – Candidiasis

Includes:

candidosis
moniliasis

Excludes1 (not coded here):

neonatal candidiasis (P37.5)

Block B35-B49

Excludes2 (not included here):

hypersensitivity pneumonitis due to organic dust (J67.-)
mycosis fungoides (C84.0-)

Index terms for B37.9

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in B37

B37.0 – Candidal stomatitisBillable
B37.1 – Pulmonary candidiasisBillable
B37.2 – Candidiasis of skin and nailBillable
B37.3 – Candidiasis of vulva and vaginaHeader
B37.4 – Candidiasis of other urogenital sitesHeader
B37.5 – Candidal meningitisBillable
B37.6 – Candidal endocarditisBillable
B37.7 – Candidal sepsisBillable
B37.8 – Candidiasis of other sitesHeader

Frequently asked questions

What is ICD-10 code B37.9?

B37.9 is the ICD-10-CM code for candidiasis, unspecified, in the block B35-B49 (Mycoses).

Is B37.9 a billable code?

Yes. B37.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does B37.9 belong to?

It belongs to category B37 – Candidiasis.

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.