L409 - Psoriasis skin condition without specific type identified

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

Psoriasis is a chronic skin condition that causes red, scaly patches to appear on the skin. This code is used when you have been diagnosed with psoriasis, but the doctor hasn't specified which particular type you have. Psoriasis occurs when your immune system causes skin cells to grow too quickly, leading to thick, silvery scales and itchy, dry, red patches that can be painful. It's not contagious and commonly affects areas like elbows, knees, scalp, and lower back, though it can appear anywhere on the body. The condition tends to go through cycles of flaring up and then calming down.

Additional Information

Psoriasis is a lifelong condition that can be managed with various treatments including topical medications, light therapy, and systemic treatments. Early diagnosis and proper management can significantly improve quality of life and prevent complications.

Category

Dermatological Condition

Medical Specialty

Dermatology

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 by healthcare provider
  • Medical history review
  • Possible skin biopsy if diagnosis unclear

What to Expect After

  • Regular dermatology appointments
  • Monitoring of treatment response
  • Skin care routine education
  • Possible referral to rheumatology if joint symptoms develop

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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