AutoICD API

B35.1

Billable

Tinea unguium

Tinea unguium

Status

Billable / Specific

Block

B35-B49

Parent Code

B35

ICD-11 Mapping

1 equivalent

Coding Notes

Inclusion Terms

Alternative clinical terms for this condition

  • Dermatophytic onychia
  • Dermatophytosis of nail
  • Onychomycosis
  • Ringworm of nails

Includes

Conditions included under this code

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

  • certain localized infections - see body system-related chapters

Use Additional Code

Additional codes that should follow this code

Related Codes(8)
ICD-11 Equivalents(1)

ICD-11 Equivalents

View full mapping

Corresponding ICD-11 codes from the WHO crosswalk mapping

Also Known As / Clinical Terms(192)

SNOMED CT

Clinical Terms

  • Dermatophytosis of nail
  • Onychomycosis caused by Scopulariopsis brevicaulis
  • Neoscytalidium dimidiatum infection of skin
  • Nail fungal infection NOS
  • Onychomycosis caused by Epidermophyton floccosum
  • Nail Fungus
  • Tinea unguium caused by Trichophyton schoenleinii
  • fungal nail infection
  • Onychomycosis caused by mould infection
  • onychomycoses
  • dermatophytic onychia
  • Tinea caused by Epidermophyton floccosum
  • Onychomycosis due to dermatophyte
  • Onychomycosis caused by Neoscytalidium dimidiatum
  • Onychomycosis caused by Trichophyton tonsurans variant tonsurans
  • onychomycosis
  • Separation of nail plate
  • Onychomycosis caused by dermatophyte
  • Onychomycosis caused by mould
  • nail fungi
  • Infection of skin caused by Neoscytalidium
  • Tinea unguium caused by Trichophyton soudanense
  • Epidermophyton floccosum infection
  • Tinea caused by Trichophyton tonsurans
  • Onychomycosis due to opportunistic infection
  • Onychomycosis caused by Acremonium
  • Fungal infection of nail
  • Tinea unguium caused by Trichophyton tonsurans
  • Nail tinea
  • Onychomycosis caused by Pyrenochaeta unguis hominis
  • Infection of skin caused by Neoscytalidium dimidiatum
  • Tinea caused by Trichophyton mentagrophytes variant interdigitale
  • Scytalidium hyalinum infection of skin
  • Onychomycosis of nail of digit of hand
  • Onychomycosis caused by Curvularia lunata
  • Distal and lateral subungual onychomycosis
  • Fungus, Nail
  • Tinea caused by Trichophyton rubrum
  • Fusarium infection
  • Onychomycosis caused by Trichophyton mentagrophytes
  • Superficial white onychomycosis
  • Nail bed infection
  • Scytalidium infection
  • Onychomycosis of toenails
  • Onychomycosis caused by dermatophyte (disorder)
  • Endonyx onychomycosis
  • Infection caused by Scytalidium
  • Tinea caused by Trichophyton soudanense
  • Onychomycosis caused by Pseudeurotium ovalis
  • Onychomycosis caused by Trichophyton rubrum
  • Onycholysis
  • Onychomycosis caused by Scytalidium hyalinum
  • Onychomycosis caused by Fusarium
  • Onychomycosis caused by Onychocola canadensis
  • Superficial onychomycosis
  • Onychomycosis caused by mold
  • Ringworm of nail
  • Onychomycosis caused by Lasiodiplodia theobromae
  • Onycholysis due to fungal infection of nail
  • Onychomycosis caused by Trichophyton mentagrophytes variant interdigitale
  • fungi nail
  • Infected nail bed
  • Tinea unguium caused by Trichophyton interdigitale
  • Tinea caused by Trichophyton interdigitale
  • Onychomycosis (disorder)
  • Scytalidium dimidiatum infection of skin
  • Onychomycosis caused by Botryodiplodia theobromae
  • Onychomycosis caused by mold infection
  • Tinea of nail
  • Onychomycosis caused by Trichophyton violaceum
  • Onychomycosis of nail of digit
  • Total dystrophic onychomycosis
  • Dermatophytosis caused by Trichophyton rubrum
  • Proximal subungual onychomycosis
  • Detachment of nail plate
  • Onychomycosis caused by Scytalidium dimidiatum
  • Onychomycosis caused by Trichophyton soudanense
  • Onychomycosis caused by Trichophyton tonsurans
  • Tinea unguium caused by Trichophyton violaceum
  • Ringworm of nails
  • Onychomycosis caused by Pseudeurotium ovale
  • Epidermophytosis
  • Neoscytalidium dermatomycosis
  • Onychomycosis caused by Trichophyton interdigitale
  • Tinea caused by Trichophyton violaceum
  • Infection of toenail
  • Onychomycosis caused by Trichophyton schoenleinii
  • Onychomycosis caused by Neocucurbitaria unguis-hominis
Frequently Asked Questions
What is the ICD-10 code for tinea unguium?

The ICD-10-CM code for tinea unguium is B35.1. The full clinical description is "Tinea unguium". B35.1 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code B35.1 mean?

ICD-10-CM code B35.1 represents “Tinea unguium”. It is classified under Chapter 1: Certain Infectious and Parasitic Diseases and is a billable/specific code that can be used on a claim.

Is B35.1 a billable code?

Yes, B35.1 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is B35.1 in?

B35.1 is in Chapter 1: Certain Infectious and Parasitic Diseases (codes A00-B99).

What codes cannot be used with B35.1?

B35.1 has Excludes1 notes indicating codes that cannot be used together with it, including: certain localized infections - see body system-related chapters.

Are additional codes required with B35.1?

Yes, when using B35.1, also report: resistance to antimicrobial drugs (Z16.-).

What SNOMED CT codes does B35.1 map to?

B35.1 maps to 44 SNOMED CT concepts: 371042002, 402134005, 75789001, 403104005, 403109000, and 39 more. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for B35.1?

B35.1 is linked to 2 UMLS Concept Unique Identifiers: C4082762, C0040261. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

How does B35.1 relate to ICF functioning codes?

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like tinea unguium affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.

What is the ICD-11 equivalent of B35.1?

B35.1 maps to the ICD-11 code: 1F28.1 (Dermatophytosis of nail).

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.