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ICD-10-CM Codes
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A00-B99
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B35-B49
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B35-
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2023 ICD-10-CM Diagnosis Code B35.1
2023 ICD-10-CM Diagnosis Code B35.1
Tinea unguium
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- B35.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2023 edition of ICD-10-CM B35.1 became effective on October 1, 2022.
- This is the American ICD-10-CM version of B35.1 - other international versions of ICD-10 B35.1 may differ.
Applicable To- Dermatophytic onychia
- Dermatophytosis of nail
- Onychomycosis
- Ringworm of nails
The following code(s) above
B35.1 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to
B35.1:
- A00-B99
2023 ICD-10-CM Range A00-B99
Certain infectious and parasitic diseasesIncludes- diseases generally recognized as communicable or transmissible
Type 1 Excludes- certain localized infections - see body system-related chapters
Type 2 Excludes- carrier or suspected carrier of infectious disease (Z22.-)
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
- infectious and parasitic diseases specific to the perinatal period (P35-P39)
- influenza and other acute respiratory infections (J00-J22)
Use Additional- code to identify resistance to antimicrobial drugs (Z16.-)
- B35-B49
2023 ICD-10-CM Range B35-B49
MycosesType 2 Excludes- hypersensitivity pneumonitis due to organic dust (J67.-)
- mycosis fungoides (C84.0-)
- B35
ICD-10-CM Diagnosis Code B35
Dermatophytosis
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Includes- favus
- infections due to species of Epidermophyton, Micro-sporum and Trichophyton
- tinea, any type except those in B36.-
- Onychomycosis
- Onychomycosis (nail fungal infection)
- Onychomycosis/dystrophy
- Total dystrophic onychomycosis
Clinical Information
- A fungal infection of the nail, usually caused by dermatophytes; yeasts; or nondermatophyte molds.
ICD-10-CM B35.1 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
- 606 Minor skin disorders with mcc
- 607 Minor skin disorders without mcc
Convert B35.1 to ICD-9-CM
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
- Dermatophytosis (epidermophyton) (infection) (Microsporum) (tinea) (Trichophyton) B35.9
ICD-10-CM Diagnosis Code B35.9
Dermatophytosis, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- Infection, infected, infective (opportunistic) B99.9
ICD-10-CM Diagnosis Code B99.9
Unspecified infectious disease
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- finger (skin) L08.9
ICD-10-CM Diagnosis Code L08.9
Local infection of the skin and subcutaneous tissue, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- nail L03.01-
ICD-10-CM Diagnosis Code L03.01-
Cellulitis of finger
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
- fungus NOS B49
ICD-10-CM Diagnosis Code B49
Unspecified mycosis
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- skin B36.9
ICD-10-CM Diagnosis Code B36.9
Superficial mycosis, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- nail B35.1
- nail (chronic)
- finger L03.01-
ICD-10-CM Diagnosis Code L03.01-
Cellulitis of finger
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
- toe L03.03-
ICD-10-CM Diagnosis Code L03.03-
Cellulitis of toe
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
- toe (skin) L08.9
ICD-10-CM Diagnosis Code L08.9
Local infection of the skin and subcutaneous tissue, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- cellulitis L03.03-
ICD-10-CM Diagnosis Code L03.03-
Cellulitis of toe
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
- nail L03.03-
ICD-10-CM Diagnosis Code L03.03-
Cellulitis of toe
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
- Mycosis, mycotic B49
ICD-10-CM Diagnosis Code B49
Unspecified mycosis
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- Onychia - see also Cellulitis, digit
- Onychomycosis B35.1 (finger) (toe)
- Ringworm B35.9
ICD-10-CM Diagnosis Code B35.9
Dermatophytosis, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- Tinea (intersecta) (tarsi) B35.9
ICD-10-CM Diagnosis Code B35.9
Dermatophytosis, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
ICD-10-CM Codes Adjacent To B35.1
B34 Viral infection of unspecified site
B34.0 Adenovirus infection, unspecified
B34.1 Enterovirus infection, unspecified
B34.2 Coronavirus infection, unspecified
B34.3 Parvovirus infection, unspecified
B34.4 Papovavirus infection, unspecified
B34.8 Other viral infections of unspecified site
B34.9 Viral infection, unspecified
B35.0 Tinea barbae and tinea capitis
B35.1
Tinea unguium
B35.8 Other dermatophytoses
B35.9 Dermatophytosis, unspecified
B36 Other superficial mycoses
B36.0 Pityriasis versicolor
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
