Chronic contact dermatitis
Contact Dermatitis, Allergic
Dermatitis, Allergic Eczematous
Allergic eczema of hands
Allergic contact dermatitis of foot
Perianal dermatitis
LSC - Lichen simplex chronicus
Allergic contact dermatitis of face
Allergic Eczematous Dermatitides
Allergic sensitisation
Contact dermatitis of left hand
Contact dermatitis of male genitalia
ACD - Allergic contact dermatitis
Allergic contact dermatitis of male genitalia
Contact dermatitis of skin of right hand
Eczematous Dermatitis, Allergic
Allergic contact dermatitis of female genitalia
Dermatitis, Contact, Allergic
Eczematous Dermatitides, Allergic
Lichenoid allergic contact dermatitis
Contact dermatitis of skin of lower leg
Occupational allergic contact sensitisation
Disseminated allergic contact urticaria
Allergic sensitization
Occupational allergic contact sensitisation of skin and skin-associated mucous membrane
Dermatitides, Allergic Contact
Lichenoid dermatitis
Allergic disorder of skin
Systemic contact dermatitis
Contact dermatitis of foot
Industrial dermatitis
Contact Dermatitides, Allergic
Dermatitis, Allergic Contact
Allergic contact sensitization of skin and skin-associated mucous membrane
Contact dermatitis of lower leg
Otitis externa due to contact allergy
Allergic vulvitis
Allergic Contact Dermatitides
Exacerbation of constitutional dermatitis due to occupation
Allergic contact dermatitis of external auditory canal
Allergic contact dermatitis of perianal skin
Allergic contact dermatitis of scalp
dermatitis contact allergic
Lichen simplex chronicus
Local neurodermatitis
Allergic contact sensitisation of skin and skin-associated mucous membrane
Allergic contact dermatitis (disorder)
Localized allergic contact urticaria
Protein contact dermatitis
Contact dermatitis of perianal skin
Dermatitides, Allergic Eczematous
Circumscribed neurodermatitis
Contact dermatitis of skin of left hand
Contact dermatitis of female genitalia
Contact dermatitis of skin of perianal area
Allergic contact dermatitis of hands
Contact dermatitis of neck
Contact dermatitis of scalp
Localised allergic contact urticaria
Allergic contact eczema NOS
Allergic contact dermatitis of neck
Contact urticaria
Lichenoid allergic contact reaction
Occupational allergic contact sensitization
Contact dermatitis of skin of neck
Contact dermatitis of external ear
Allergic contact urticaria
Occupational allergic contact dermatitis
Contact dermatitis of right hand
Contact dermatitis of skin of scalp
Allergic contact dermatitis of skin of face
Occupational allergic contact sensitization of skin and skin-associated mucous membrane
Allergic contact dermatitis of lower leg
Allergic Eczematous Dermatitis
Lichen simplex
contact allergic dermatitis
Skin allergy
Allergic contact dermatitis of skin of foot
Exacerbation of constitutional dermatitis due to occupational exposure to contact allergen
Neurodermatitis circumscripta

Frequently Asked Questions

What is the ICD-10 code for allergic contact dermatitis, unspecified cause?

The ICD-10-CM code for allergic contact dermatitis, unspecified cause is L23.9. The full clinical description is "Allergic contact dermatitis, unspecified cause". L23.9 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code L23.9 mean?

ICD-10-CM code L23.9 represents “Allergic contact dermatitis, unspecified cause”. 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 L23.9 a billable code?

Yes, L23.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is L23.9 in?

L23.9 is in Chapter 12: Diseases of the Skin and Subcutaneous Tissue (codes L00-L99).

What codes cannot be used with L23.9?

L23.9 has Excludes1 notes indicating codes that cannot be used together with it, including: allergy NOS (T78.40); contact dermatitis NOS (L25.9); dermatitis NOS (L30.9).

What SNOMED CT codes does L23.9 map to?

L23.9 maps to 40 SNOMED CT concepts: 238575004, 419957005, 1251427000, 402257005, 1251428005, and 35 more. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for L23.9?

L23.9 is linked to 2 UMLS Concept Unique Identifiers: C0162820, C1393798. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

How does L23.9 relate to ICF functioning codes?

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like allergic contact dermatitis, unspecified cause 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 L23.9?

L23.9 maps to the ICD-11 code: EK5Y (Other specified skin disorders provoked by external factors).

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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.