L40.9 is the ICD-10 code for Psoriasis, unspecified. It is a four-character subcategory of L40 (Psoriasis), the most specific level in the WHO edition. It belongs to the block L40–L45 (Papulosquamous disorders) 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
L40.9 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
L40.9Uspesifisert psoriasis
DL409Psoriasis UNS
L40.9Määrittämätön psoriaasi
L40.9Psoriasis, nicht näher bezeichnet
L40.9Psoriasis, sans précision
L40.9psoriasis, niet-gespecificeerd
L40.9Psoriasis, unspecified
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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