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B35 ICD-10-CA category: Dermatophytosis

B35 isn’t a code on its own. Choose one of the 9 codes beneath it, the one the documentation supports.

Official description

B35

Dermatophytosis

ICD-10-CA · Canada

Codes in B35

B35 isn’t a code on its own. Open the code that matches what the note documents.

B35.0Tinea barbae and tinea capitisB35.1Tinea unguiumB35.2Tinea manuumB35.3Tinea pedisB35.4Tinea corporisB35.5Tinea imbricataB35.6Tinea inguinalis [Tinea cruris]B35.8Other dermatophytosesB35.9Dermatophytosis, unspecified

Notes for B35

As CIHI prints them, with any note B35 takes from the headings above it.

Includes

  • Favusinfections due to species of Epidermophyton, Microsporum and Trichophytontinea, any type except those in B36.-
  • Diseases generally recognized as communicable or transmissibleFrom Chapter 1: Certain infectious and parasitic diseases (A00-B99)

Use additional code

Add a code for this detail when the note documents it.

  • Use additional code (U82-U84) to identify resistance to antimicrobial drugsFrom Chapter 1: Certain infectious and parasitic diseases (A00-B99)

Excludes

Conditions classified elsewhere.

  • Hypersensitivity pneumonitis due to organic dust (J67.-)mycosis fungoides (C84.0)From B35-B49 Mycoses
  • Carrier or suspected carrier of infectious disease (Z22.-)certain localized infections - see body system-related chaptersinfectious and parasitic diseases:• complicating pregnancy, childbirth and the puerperium [except obstetrical tetanus] (O98.-)• specific to the perinatal period [except tetanus neonatorum, whooping cough, congenital syphilis, perinatal gonococcal infection and perinatal human immunodeficiency virus [HIV] disease] (P35-P39)influenza and other acute respiratory infections (J00-J22)From Chapter 1: Certain infectious and parasitic diseases (A00-B99)

Where B35 sits

  1. 1ChapterChapter 1: Certain infectious and parasitic diseases (A00-B99)
  2. 2Block B35-B49Mycoses
  3. 3Category B35Dermatophytosis

Source and release

Data release
ICD-10-CA · FY 2026–2027
Effective date
Apr 1, 2026
Publisher
CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

See B35 in the CIHI source

Frequently asked questions

Is B35 a valid ICD-10-CA code?

No. B35 (Dermatophytosis) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 9 codes; record the one the documentation supports.

Where is B35 in ICD-10-CA?

B35 sits under B35-B49 Mycoses, within Chapter 1: Certain infectious and parasitic diseases (A00-B99).

What coding notes apply to B35?

ICD-10-CA lists Includes, Excludes, Use additional code notes for B35, including those from the headings it sits under. They are listed on this page with where each one comes from.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.

Codes beside B35

B36Other superficial mycosesB37CandidiasisB38CoccidioidomycosisB39HistoplasmosisB40BlastomycosisB41ParacoccidioidomycosisB42SporotrichosisB43Chromomycosis and phaeomycotic abscessB44AspergillosisB45CryptococcosisB46ZygomycosisB47MycetomaB48Other mycoses, not elsewhere classifiedB49Unspecified mycosis