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ICD-10-CM 2027

ICD-10 code for Onychia

Choose a code from the options below based on the documentation.

From the official ICD-10-CM alphabetic index entry “Onychia”. Page updated September 29, 2026.

About coding Onychia

The official ICD-10-CM index doesn't give a single default code for onychia; the code depends on the details below.

More specific Onychia codes (official index)

  • with lymphangitis
  • candidal B37.2 — Candidiasis of skin and nail
  • dermatophytic B35.1 — Tinea unguium

Common questions about Onychia ICD-10 codes

What is the ICD-10 code for candidal onychia?

B37.2 — Candidiasis of skin and nail.

What is the ICD-10 code for dermatophytic onychia?

B35.1 — Tinea unguium.