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ICD-10 diagnosis code

L63.9 Alopecia areata, unspecified

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L63.9 is the ICD-10 code for Alopecia areata, unspecified. It is a four-character subcategory of L63 (Alopecia areata), the most specific level in the WHO edition. It belongs to the block L60–L75 (Disorders of skin appendages) 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

L63.9 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

L63.9Alopecia areata, ospecificerad

NorwayICD-10-NO

L63.9Uspesifisert flekkvis alopesi

DenmarkICD-10-DK

DL639Alopecia areata UNS

FinlandICD-10-FI

L63.9Määrittämätön pälvikaljuus

GermanyICD-10-GM

L63.9Alopecia areata, nicht näher bezeichnet

FranceICD-10-FR

L63.9Pelade, sans précision

NetherlandsICD-10-NL

L63.9alopecia areata, niet-gespecificeerd

United StatesICD-10-CM

L63.9Alopecia areata, 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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