L821 - Non-cancerous skin growths that appear as brown, black, or tan raised spots, typically found on the chest, back, shoulders, or face

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 common, harmless skin growths that look like waxy, scaly, or slightly raised patches on your skin. They can range in color from light tan to dark brown or black, and may appear 'stuck on' to the skin surface. These growths are very common as people age and are sometimes called 'wisdom spots' or 'barnacles.' While they can look concerning, they are benign (non-cancerous) and don't require treatment unless they become irritated, cosmetically bothersome, or change in appearance. This particular code refers to seborrheic keratoses that don't fit into other specific categories.

Additional Information

These are age-related benign skin growths that typically don't require treatment. However, any sudden changes in appearance should be evaluated by a healthcare provider to rule out skin cancer.

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
  • Possible dermoscopy or biopsy if appearance is atypical

What to Expect After

  • Monitor for changes in size, color, or texture
  • Annual skin checks recommended
  • Return if growths become irritated or bleed

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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