B35.1
Tinea unguium
This code does not map to a risk-adjusting HCC in the loaded models.
Coding notes
Excludes 1 never coded together · Excludes 2 may co-exist
Dermatophytic onychia Dermatophytosis of nail Onychomycosis Ringworm of nails
favus infections due to species of Epidermophyton, Micro-sporum and Trichophyton tinea, any type except those in B36.-
diseases generally recognized as communicable or transmissible
certain localized infections - see body system-related chapters
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)
code to identify resistance to antimicrobial drugs (Z16.-)
Official Guidelines for B35.1
FY 2026 ›Subsections
- I.C.1.aHuman Immunodeficiency Virus (HIV) Infections
- I.C.1.bInfectious agents as the cause of diseases classified to other chapters
- I.C.1.cInfections resistant to antibiotics
- I.C.1.dSepsis, Severe Sepsis, and Septic Shock Infections resistant to antibiotics
- I.C.1.eMethicillin Resistant Staphylococcus aureus (MRSA) Conditions
- I.C.1.fZika virus infections
- I.C.1.gCoronavirus infections
Find B35.1 in the alphabetic index
13 index paths lead to this code
- Onychomycosis
- Dermatophytosis › nail
- Mycosis, mycotic › nails
- Onychia › dermatophytic
- Ringworm › nails
- Tinea › unguium
- Infection, infected, infective › fungus NOS › nail
- Infection, infected, infective › finger › nail › fungus
- Infection, infected, infective › fungus NOS › skin › toenails
- Infection, infected, infective › nail › finger › fungus
- Infection, infected, infective › nail › toe › fungus
- Infection, infected, infective › toe › cellulitis › fungus
- Infection, infected, infective › toe › nail › fungus