B35 – Dermatophytosis
ICD-10-CM 2027 diagnosis code · Mycoses
ICD-10-CM code
B35
- Code
B35(claims format:B35)- Description
- Dermatophytosis
- Billable
- No – use a more specific code below
- 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
Billable codes under B35
B35 is a header code and cannot be used on claims. Choose the most specific code:
- B35.0 – Tinea barbae and tinea capitisBillable
- B35.1 – Tinea unguiumBillable
- B35.2 – Tinea manuumBillable
- B35.3 – Tinea pedisBillable
- B35.4 – Tinea corporisBillable
- B35.5 – Tinea imbricataBillable
- B35.6 – Tinea crurisBillable
- B35.8 – Other dermatophytosesBillable
- B35.9 – Dermatophytosis, unspecifiedBillable
Notes for B35
Includes:
- favus
- infections due to species of Epidermophyton, Micro-sporum and Trichophyton
- tinea, any type except those in B36.-
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block B35-B49
Frequently asked questions
What is ICD-10 code B35?
B35 is the ICD-10-CM code for dermatophytosis, in the block B35-B49 (Mycoses).
Is B35 a billable code?
No. B35 is a header code with more specific child codes; report one of the billable codes listed above.
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.