B37.84 – Candidal otitis externa
ICD-10-CM 2027 diagnosis code · Mycoses
ICD-10-CM code
B37.84
- Code
B37.84(claims format:B3784)- Description
- Candidal otitis externa
- 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 › B37.8
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
Index terms for B37.84
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Otomycosis, in, moniliasis
- Otomycosis, in, candidiasis
- Otitis, externa, in, candidiasis
- Ear, tropical NEC, in, moniliasis
- Ear, tropical NEC, in, candidiasis
- Candidiasis, candidal, otitis externa
- Mycosis, mycotic, ear, in, moniliasis
- Mycosis, mycotic, ear, in, candidiasis
- Otitis, externa, mycotic NEC, in, moniliasis
- Otitis, externa, mycotic NEC, in, candidiasis
- Otitis, externa, tropical NEC, in, moniliasis
- Otitis, externa, tropical NEC, in, candidiasis
Related codes in B37.8
- B37.81 – Candidal esophagitisBillable
- B37.82 – Candidal enteritisBillable
- B37.83 – Candidal cheilitisBillable
- B37.89 – Other sites of candidiasisBillable
Frequently asked questions
What is ICD-10 code B37.84?
B37.84 is the ICD-10-CM code for candidal otitis externa, in the block B35-B49 (Mycoses).
Is B37.84 a billable code?
Yes. B37.84 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does B37.84 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.