B36.9 – Superficial mycosis, unspecified
ICD-10-CM 2027 diagnosis code · Mycoses
ICD-10-CM code
B36.9
- Code
B36.9(claims format:B369)- Description
- Superficial mycosis, 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
- B36
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 B36.9
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Otomycosis
- Dermatomycosis
- Ear, tropical NEC
- Dermatitis, fungus
- Mycosis, mycotic, ear
- Mycosis, mycotic, skin NEC
- Otitis, externa, mycotic NEC
- Otitis, externa, tropical NEC
- Mycosis, mycotic, cutaneous NEC
- Otitis, externa, in, mycosis NEC
- Infection, infected, infective, skin, mycotic
- Infection, infected, infective, fungus NOS, skin
- Infection, infected, infective, skin, due to fungus
- Infection, infected, infective, mycotic NOS, skin NOS
Related codes in B36
- B36.0 – Pityriasis versicolorBillable
- B36.1 – Tinea nigraBillable
- B36.2 – White piedraBillable
- B36.3 – Black piedraBillable
- B36.8 – Other specified superficial mycosesBillable
Frequently asked questions
What is ICD-10 code B36.9?
B36.9 is the ICD-10-CM code for superficial mycosis, unspecified, in the block B35-B49 (Mycoses).
Is B36.9 a billable code?
Yes. B36.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does B36.9 belong to?
It belongs to category B36 – Other superficial mycoses.
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.