- B35.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2024 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.
ICD-10-CM B35.1 is grouped within Diagnostic Related Group(s):
Applicable To
- Dermatophytic onychia
- Dermatophytosis of nail
- Onychomycosis
- Ringworm of nails
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2016 (effective 10/1/2015): No change
- 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
- 2024 (effective 10/1/2022): No change
Diagnosis Index entries containing back-references to B35.1:
- nail > Dermatophytosis (epidermophyton) (infection) (Microsporum) (tinea) (Trichophyton) B35.9
- fungus > nail L03.01-
- nail > fungus NOS B49
- toenails > skin B36.9
- fungus > finger L03.01-
- fungus > toe L03.03-
- fungus > cellulitis L03.03-
- fungus > nail L03.03-
- nails > Mycosis, mycotic B49
- dermatophytic > Onychia
- nails > Ringworm B35.9
- unguium > Tinea (intersecta) (tarsi) B35.9