L21.9
BillableSeborrheic dermatitis, unspecified
Seborrheic dermatitis, unspecified
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Seborrhea NOS
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
Related Codes(3)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(147)
SNOMED CT
- SBD - Seborrheic dermatitis50563003
- SBD - Seborrhoeic dermatitis50563003
- Seborrheic dermatitis50563003
- Seborrheic eczema50563003
- Seborrhoeic dermatitis50563003
- Seborrhoeic eczema50563003
- Facial seborrheic dermatitis201237005
- Facial seborrheic eczema201237005
- Facial seborrhoeic dermatitis201237005
- Facial seborrhoeic eczema201237005
- Seborrhea faciei201237005
- Seborrhoea faciei201237005
- Blepharitis in seborrheic eczema231797007
- Blepharitis in seborrhoeic eczema231797007
- Seborrheic blepharitis231797007
- Seborrhoeic blepharitis231797007
- Truncal seborrheic dermatitis238565002
- Truncal seborrheic eczema238565002
- Truncal seborrhoeic dermatitis238565002
- Truncal seborrhoeic eczema238565002
- Seborrheic eczema-like eruption238991008
- Seborrheic eczema-like rash238991008
- Seborrhoeic eczema-like eruption238991008
- Seborrhoeic eczema-like rash238991008
- Perianal dermatitis275448003
- Acute seborrheic dermatitis402202008
- Acute seborrheic eczema402202008
- Acute seborrhoeic dermatitis402202008
- Acute seborrhoeic eczema402202008
- Chronic seborrheic dermatitis402204009
- Chronic seborrheic eczema402204009
- Chronic seborrhoeic dermatitis402204009
- Chronic seborrhoeic eczema402204009
- Perianal seborrheic dermatitis402209004
- Perianal seborrheic eczema402209004
- Perianal seborrhoeic dermatitis402209004
- Perianal seborrhoeic eczema402209004
- Human immunodeficiency virus associated seborrheic dermatitis870344006
- Human immunodeficiency virus associated seborrhoeic dermatitis870344006
- Seborrheic dermatitis due to human immunodeficiency virus infection870344006
- Seborrhoeic dermatitis due to human immunodeficiency virus infection870344006
- Disorder of skin due to human immunodeficiency virus infection1148863007
- Skin disease due to human immunodeficiency virus infection1148863007
- Genitocrural seborrheic dermatitis1251357005
- Genitocrural seborrhoeic dermatitis1251357005
- Seborrheic dermatitis of skin crease of groin1251357005
- Seborrhoeic dermatitis of skin crease of groin1251357005
- Generalised seborrhoeic dermatitis1251359008
- Generalized seborrheic dermatitis1251359008
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
- Greasy skin due to excessive secretion of sebumC5848104
- Greasy skin due to excessive secretion of sebum (disorder)C5848104
- Seborrhea NOSC5848104
- SeborrhoeaC5848104
- Skin seborrheicC5848104
- Skin seborrhoeicC5848104
Clinical Terms
- Seborrhoeic blepharitis
- Seborrhoea
- Seborrheic dermatitis of skin crease of groin
- Truncal seborrheic dermatitis
- Dermatitis, Seborrheic
- Eczema seborrhoeic
- Dermatitis Seborrheica
- Chronic seborrhoeic dermatitis
- Seborrhoeic eczema-like eruption
- Dermatitides, Seborrheic
- seborrhea
- Skin disease due to human immunodeficiency virus infection
- seborrhoeic dermatitis
- Acute seborrhoeic eczema
- Truncal seborrhoeic dermatitis
- Seborrheic dermatitis due to human immunodeficiency virus infection
- Perianal dermatitis
- Chronic seborrheic dermatitis
- Greasy skin due to excessive secretion of sebum
- Blepharitis in seborrheic eczema
- Greasy skin due to excessive secretion of sebum (disorder)
- SBD - Seborrhoeic dermatitis
- Truncal seborrheic eczema
- Dermatitis seborrhoeic
- Blepharitis in seborrhoeic eczema
- Seborrhoea faciei
- Seborrhoeic dermatitis due to human immunodeficiency virus infection
- Seborrheic Dermatitides
- SBD - Seborrheic dermatitis
- Seborrheic dermatitis (disorder)
- Human immunodeficiency virus associated seborrhoeic dermatitis
- Seborrheic blepharitis
- Genitocrural seborrhoeic dermatitis
- Facial seborrhoeic dermatitis
- Facial seborrheic eczema
- Genitocrural seborrheic dermatitis
- Seborrhoeic eczema-like rash
- Skin seborrhoeic
- Facial seborrheic dermatitis
- Acute seborrhoeic dermatitis
- Facial seborrhoeic eczema
- Seborrhea faciei
- Seborrheic Eczema
- Disorder of skin due to human immunodeficiency virus infection
- Acute seborrheic dermatitis
- seborrhoeic eczema
- Perianal seborrhoeic eczema
- Truncal seborrhoeic eczema
- Seborrhea NOS
- Perianal seborrheic dermatitis
- Perianal seborrhoeic dermatitis
- Generalized seborrheic dermatitis
- Perianal seborrheic eczema
- Chronic seborrhoeic eczema
- Seborrheic eczema-like rash
- Skin seborrheic
- Acute seborrheic eczema
- Seborrhoeic dermatitis of skin crease of groin
- Generalised seborrhoeic dermatitis
- Human immunodeficiency virus associated seborrheic dermatitis
- Cradle Cap
- Seborrhoeic dermatitis, unspecified
- Dermatitis seborrheic
- Chronic seborrheic eczema
- Seborrheic eczema-like eruption
Frequently Asked Questions
What is the ICD-10 code for seborrheic dermatitis, unspecified?
The ICD-10-CM code for seborrheic dermatitis, unspecified is L21.9. The full clinical description is "Seborrheic dermatitis, unspecified". L21.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code L21.9 mean?
ICD-10-CM code L21.9 represents “Seborrheic dermatitis, unspecified”. It is classified under Chapter 12: Diseases of the Skin and Subcutaneous Tissue and is a billable/specific code that can be used on a claim.
Is L21.9 a billable code?
Yes, L21.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is L21.9 in?
L21.9 is in Chapter 12: Diseases of the Skin and Subcutaneous Tissue (codes L00-L99).
What SNOMED CT codes does L21.9 map to?
L21.9 maps to 13 SNOMED CT concepts: 402202008, 231797007, 402204009, 1148863007, 201237005, and 8 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for L21.9?
L21.9 is linked to 2 UMLS Concept Unique Identifiers: C0036508, C5848104. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does L21.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like seborrheic dermatitis, unspecified 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 L21.9?
L21.9 maps to the ICD-11 code: EA81.Y (Seborrhoeic dermatosis of other specified type or distribution).
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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.