ICD-10 Diagnosis Code B35.1

Tinea unguium

Diagnosis Code B35.1

ICD-10: B35.1
Short Description: Tinea unguium
Long Description: Tinea unguium
This is the 2018 version of the ICD-10-CM diagnosis code B35.1

Valid for Submission
The code B35.1 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Certain infectious and parasitic diseases (A00–B99)
    • Mycoses (B35-B49)
      • Dermatophytosis (B35)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code B35.1 is grouped in the following Diagnostic Related Group(s) (MS-DRG V35.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
  • 110.1 - Dermatophytosis of nail

  • Distal and lateral subungual onychomycosis
  • Endonyx onychomycosis
  • Fusarium infection
  • Nail bed infection
  • Nail bed infection
  • Onycholysis
  • Onycholysis due to fungal infection of nail
  • Onychomycosis
  • Onychomycosis caused by Acremonium
  • Onychomycosis caused by Botryodiplodia theobromae
  • Onychomycosis caused by Curvularia lunata
  • Onychomycosis caused by dermatophyte
  • Onychomycosis caused by Epidermophyton floccosum
  • Onychomycosis caused by Fusarium
  • Onychomycosis caused by mold infection
  • Onychomycosis caused by Onychocola canadensis
  • Onychomycosis caused by Pseudeurotium ovale
  • Onychomycosis caused by Pyrenochaeta unguis hominis
  • Onychomycosis caused by Scopulariopsis brevicaulis
  • Onychomycosis caused by Scytalidium hyalinum
  • Onychomycosis caused by Trichophyton mentagrophytes
  • Onychomycosis caused by Trichophyton mentagrophytes variant interdigitale
  • Onychomycosis caused by Trichophyton rubrum
  • Onychomycosis caused by Trichophyton schoenleinii
  • Onychomycosis caused by Trichophyton soudanense
  • Onychomycosis caused by Trichophyton tonsurans variant tonsurans
  • Onychomycosis caused by Trichophyton violaceum
  • Onychomycosis due to opportunistic infection
  • Onychomycosis of fingernails
  • Onychomycosis of toenails
  • Proximal subungual onychomycosis
  • Superficial white onychomycosis
  • Tinea caused by Trichophyton rubrum
  • Total dystrophic onychomycosis

Index of Diseases and Injuries
References found for the code B35.1 in the Index of Diseases and Injuries:

Information for Patients

Tinea Infections

Also called: Ringworm

Tinea is the name of a group of diseases caused by a fungus. Types of tinea include ringworm, athlete's foot and jock itch. These infections are usually not serious, but they can be uncomfortable. You can get them by touching an infected person, from damp surfaces such as shower floors, or even from a pet.

Symptoms depend on the affected area of the body:

  • Ringworm is a red skin rash that forms a ring around normal-looking skin. A worm doesn't cause it.
  • Scalp ringworm causes itchy, red patches on your head. It can leave bald spots. It usually affects children.
  • Athlete's foot causes itching, burning and cracked skin between your toes.
  • Jock itch causes an itchy, burning rash in your groin area.

Over-the-counter creams and powders will get rid of many tinea infections, particularly athlete's foot and jock itch. Other cases require prescription medicine.

  • Jock itch (Medical Encyclopedia)
  • Ringworm (Medical Encyclopedia)
  • Skin lesion KOH exam (Medical Encyclopedia)
  • Tinea capitis (Medical Encyclopedia)
  • Tinea corporis (Medical Encyclopedia)

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