ICD-10 Diagnosis Code L21.1

Seborrheic infantile dermatitis

Diagnosis Code L21.1

ICD-10: L21.1
Short Description: Seborrheic infantile dermatitis
Long Description: Seborrheic infantile dermatitis
This is the 2017 version of the ICD-10-CM diagnosis code L21.1

Code Classification
  • Diseases of the skin and subcutaneous tissue
    • Dermatitis and eczema (L20-L30)
      • Seborrheic dermatitis (L21)

Information for Medical Professionals

Code Edits
The following edits are applicable to this code:
Pediatric diagnoses Additional informationCallout TooltipPediatric diagnoses
Pediatric. Age range is 0–17 years inclusive (e.g., Reye’s syndrome, routine child health exam).

Diagnostic Related Groups
The diagnosis code L21.1 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Acute seborrheic dermatitis
  • Chronic seborrheic dermatitis
  • Facial seborrheic dermatitis
  • Generalized seborrheic dermatitis of infants
  • Infantile seborrheic dermatitis
  • Primary seborrhea
  • Sebaceous hyperplasia
  • Seborrhea
  • Seborrhea
  • Seborrhea
  • Seborrhea
  • Seborrhea
  • Seborrhea
  • Seborrhea
  • Seborrhea adiposa
  • Seborrhea corporis
  • Seborrhea faciei
  • Seborrhea nasi
  • Seborrheic blepharitis
  • Seborrheic dermatitis
  • Seborrheic eczema-like eruption
  • Seborrhoeide
  • Truncal seborrheic dermatitis

Information for Patients


Also called: Dermatitis

Eczema is a term for several different types of skin swelling. Eczema is also called dermatitis. Most types cause dry, itchy skin and rashes on the face, inside the elbows and behind the knees, and on the hands and feet. Scratching the skin can cause it to turn red, and to swell and itch even more.

Eczema is not contagious. The cause is not known. It is likely caused by both genetic and environmental factors. Eczema may get better or worse over time, but it is often a long-lasting disease. People who have it may also develop hay fever and asthma.

The most common type of eczema is atopic dermatitis. It is most common in babies and children but adults can have it too. As children who have atopic dermatitis grow older, this problem may get better or go away. But sometimes the skin may stay dry and get irritated easily.

Treatments may include medicines, skin creams, light therapy, and good skin care. You can prevent some types of eczema by avoiding

  • Things that irritate your skin, such as certain soaps, fabrics, and lotions
  • Stress
  • Things you are allergic to, such as food, pollen, and animals

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases

  • Atopic dermatitis -- self-care
  • Atopic eczema
  • Dyshidrotic eczema
  • Nummular eczema
  • Seborrheic dermatitis

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