L820 - Inflamed seborrheic keratosis - a common, non-cancerous skin growth that has become irritated or inflamed

International Classification of Diseases

Last updated: 10/3/2025

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

Seborrheic keratoses are very common, benign (non-cancerous) skin growths that appear as brown, black, or tan patches on the skin. They often look waxy, scaly, or slightly raised and are sometimes called 'barnacles' because of their appearance. When these growths become inflamed, they may appear red, swollen, tender, or irritated. This inflammation can occur from friction (like clothing rubbing against them), scratching, or other minor trauma. While seborrheic keratoses are harmless, inflamed ones may be uncomfortable and should be evaluated by a healthcare provider to confirm the diagnosis and discuss treatment options if needed.

Additional Information

This is a benign condition that typically doesn't require urgent treatment. However, any skin growth that changes in appearance, becomes painful, or bleeds should be evaluated by a healthcare provider to rule out other conditions.

Category

Dermatology/Skin Conditions

Medical Specialty

Dermatology, Family Medicine, Internal Medicine

Expected Costs

We expect this to normally be in the range of:

$150 - $400

This is an estimate based on typical billing patterns. Your actual cost may vary depending on your insurance coverage, provider location, and specific circumstances.

What's Required Before This

  • Physical examination of the skin lesion
  • Medical history review

What to Expect After

  • Monitor for changes in appearance
  • Return if inflammation worsens
  • Discuss removal options if bothersome
  • Regular skin checks as recommended

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.

Want This Level of Detail on All Your Claims?

Get detailed explanations for every medical code on your Medicare bills. Currently supporting Medicare only.