L23 is the ICD-10 code for Allergic contact dermatitis. It is a three-character category divided into 10 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block L20–L30 (Dermatitis and eczema) in Chapter XII, Diseases of the skin and subcutaneous tissue.
- Code type
- Category (3 characters)
- Chapter
- XII · L00–L99
- Classification
- WHO ICD-10, 2019 version
What L23 includes
Conditions and terms that are coded here.
- allergic contact eczema
What L23 excludes
Conditions that look similar but belong under another code.
Subcodes of L23
- L23.0Allergic contact dermatitis due to metals
- L23.1Allergic contact dermatitis due to adhesives
- L23.2Allergic contact dermatitis due to cosmetics
- L23.3Allergic contact dermatitis due to drugs in contact with skin
- L23.4Allergic contact dermatitis due to dyes
- L23.5Allergic contact dermatitis due to other chemical products
- L23.6Allergic contact dermatitis due to food in contact with skin
- L23.7Allergic contact dermatitis due to plants, except food
- L23.8Allergic contact dermatitis due to other agents
- L23.9Allergic contact dermatitis, unspecified cause
L23 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
DL23Allergisk kontaktdermatitis
L23Allerginen kosketusihottuma
L23Allergische Kontaktdermatitis
L23Dermite allergique de contact
L23allergisch contacteczeem
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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