L23.9 is the ICD-10 code for Allergic contact dermatitis, unspecified cause. It is a four-character subcategory of L23 (Allergic contact dermatitis), the most specific level in the WHO edition. It belongs to the block L20–L30 (Dermatitis and eczema) in Chapter XII, Diseases of the skin and subcutaneous tissue.
- Code type
- Subcategory (4 characters)
- Chapter
- XII · L00–L99
- Classification
- WHO ICD-10, 2019 version
What L23.9 includes
Conditions and terms that are coded here.
- Allergic contact eczema NOS
L23.9 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
L23.9Allergisk kontaktdermatitt av uspesifisert årsak
DL239Allergisk kontaktdermatitis UNS
- DL239AErhvervsbetinget allergisk kontaktdermatitis UNS
L23.9Määrittämättömästä syystä aiheutunut allerginen kosketusihottuma
L23.9Allergische Kontaktdermatitis, nicht näher bezeichnete Ursache
L23.9Dermite allergique de contact, cause non précisée
L23.9allergisch contacteczeem, oorzaak niet-gespecificeerd
L23.9Allergic contact dermatitis, unspecified cause
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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