B353 - Athlete's foot (fungal infection of the feet)

International Classification of Diseases

Last updated: 3/24/2026

What is a ICD-10 Code?

ICD-10 (International Classification of Diseases, 10th Revision) codes are used to classify and code all diagnoses, symptoms, and procedures recorded in association with hospital care. These codes provide a standardized way to track health conditions and their treatment outcomes.

Detailed Description

Tinea pedis, commonly known as athlete's foot, is a fungal infection that affects the skin of the feet. This condition is caused by dermatophyte fungi that thrive in warm, moist environments. It typically affects the spaces between the toes and the soles of the feet, causing symptoms such as itching, burning, scaling, cracking, and sometimes blistering of the skin. The infection is contagious and can spread through direct contact or contaminated surfaces like shower floors, locker rooms, and shared footwear.

Additional Information

This is a common, treatable fungal infection. Most cases respond well to topical antifungal medications, though severe or persistent cases may require oral treatment.

Category

Infectious and parasitic diseases

Medical Specialty

Dermatology, Primary Care

Expected Costs

Your actual cost will depend on your insurance coverage, provider location, and specific circumstances.

What to Expect After

  • Complete full course of antifungal treatment
  • Keep feet clean and dry
  • Monitor for recurrence or secondary bacterial infection

Why Understanding This Code Matters

On Your Medical Bill

This code appears on your medical bills to identify the specific service, procedure, drug, or medical diagnosis you received. Understanding what it means helps you verify you're being charged correctly and know what to expect.

For Your Health

Knowing what this code represents helps you understand your treatment plan, ask better questions during appointments, and track your healthcare journey more effectively.

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