ICD-10 Diagnosis Code L51

Erythema multiforme

Diagnosis Code L51

ICD-10: L51
Short Description: Erythema multiforme
Long Description: Erythema multiforme
This is the 2018 version of the ICD-10-CM diagnosis code L51

Not Valid for Submission
The code L51 is a "header" and not valid for submission for HIPAA-covered transactions.

Code Classification
  • Diseases of the skin and subcutaneous tissue (L00–L99)
    • Urticaria and erythema (L49-L54)
      • Erythema multiforme (L51)

Information for Patients


Skin Conditions

Also called: Cutaneous disorders, Dermatologic disorders

Your skin is your body's largest organ. It covers and protects your body. Your skin

  • Holds body fluids in, preventing dehydration
  • Keeps harmful microbes out, preventing infections
  • Helps you feel things like heat, cold, and pain
  • Keeps your body temperature even
  • Makes vitamin D when the sun shines on it

Anything that irritates, clogs, or inflames your skin can cause symptoms such as redness, swelling, burning, and itching. Allergies, irritants, your genetic makeup, and certain diseases and immune system problems can cause rashes, hives, and other skin conditions. Many skin problems, such as acne, also affect your appearance.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases

  • Acrodermatitis (Medical Encyclopedia)
  • Cryotherapy (Medical Encyclopedia)
  • Cutaneous skin tags (Medical Encyclopedia)
  • Dry skin -- self-care (Medical Encyclopedia)
  • Erythema multiforme (Medical Encyclopedia)
  • Granuloma annulare (Medical Encyclopedia)
  • Keratosis pilaris (Medical Encyclopedia)
  • Lichen planus (Medical Encyclopedia)
  • Milia (Medical Encyclopedia)
  • Sebaceous cyst (Medical Encyclopedia)
  • Seborrheic keratosis (Medical Encyclopedia)
  • Skin lesion removal (Medical Encyclopedia)
  • Skin lesion removal-aftercare (Medical Encyclopedia)
  • Stasis dermatitis and ulcers (Medical Encyclopedia)


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