L21
Non-billableSeborrheic dermatitis
Seborrheic dermatitis
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •lipomelanotic reticulosisI89.8
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •systemic connective tissue disordersM30-M36
- •viral wartsB07
- •chronic (childhood) granulomatous diseaseD71
- •dermatitis gangrenosaL08.0
- •dermatitis herpetiformisL13.0
- •dry skin dermatitisL85.3
- •factitial dermatitisL98.1
- •perioral dermatitisL71.0
- •radiation-related disorders of the skin and subcutaneous tissueL55-L59
- •stasis dermatitisI87.2
- •infective dermatitisL30.3
- •seborrheic keratosisL82
Child Codes (4)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(27)
UMLS
- Cradle CapC0036508
- Dermatitides, SeborrheicC0036508
- Dermatitis SeborrheicaC0036508
- Dermatitis seborrheicC0036508
- Dermatitis seborrhoeicC0036508
- Dermatitis, SeborrheicC0036508
- Eczema seborrhoeicC0036508
- SBD - Seborrheic dermatitisC0036508
- SBD - Seborrhoeic dermatitisC0036508
- SeborrheaC0036508
- Seborrheic DermatitidesC0036508
- Seborrheic DermatitisC0036508
- Seborrheic EczemaC0036508
- Seborrheic dermatitisC0036508
- Seborrheic dermatitis (disorder)C0036508
- Seborrheic dermatitis, unspecifiedC0036508
- Seborrheic eczemaC0036508
- Seborrhoeic dermatitisC0036508
- Seborrhoeic dermatitis, unspecifiedC0036508
- Seborrhoeic eczemaC0036508
- dermatitis seborrheicaC0036508
- seborrheaC0036508
- seborrheic dermatitisC0036508
- seborrheic eczemaC0036508
- seborrhoeaC0036508
- seborrhoeic dermatitisC0036508
- seborrhoeic eczemaC0036508
Frequently Asked Questions
What is the ICD-10 code for seborrheic dermatitis?
The ICD-10-CM code for seborrheic dermatitis is L21. The full clinical description is "Seborrheic dermatitis". L21 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code L21 mean?
ICD-10-CM code L21 represents “Seborrheic dermatitis”. It is classified under Chapter 12: Diseases of the Skin and Subcutaneous Tissue and is a non-billable header code. Use a more specific child code for billing purposes.
Is L21 a billable code?
No, L21 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 4 child codes under L21.
What chapter is L21 in?
L21 is in Chapter 12: Diseases of the Skin and Subcutaneous Tissue (codes L00-L99).
What are the subcategories under L21?
L21 has 4 child codes, including: L21.0 (Seborrhea capitis), L21.1 (Seborrheic infantile dermatitis), L21.8 (Other seborrheic dermatitis), L21.9 (Seborrheic dermatitis, unspecified).
What are the UMLS CUIs for L21?
L21 is linked to 1 UMLS Concept Unique Identifier: C0036508. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does L21 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like seborrheic dermatitis affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of L21?
L21 maps to the ICD-11 code: EA81.Z (Seborrhoeic dermatitis, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.