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ICD-10 diagnosis code

L66.4 Folliculitis ulerythematosa reticulata

This page in Swedish

L66.4 is the ICD-10 code for Folliculitis ulerythematosa reticulata. It is a four-character subcategory of L66 (Cicatricial alopecia [scarring hair loss]), 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

L66.4 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

L66.4Folliculitis ulerythematosa reticulata

NorwayICD-10-NO

L66.4Folliculitis ulerythematosa reticulata

DenmarkICD-10-DK

DL664Folliculitis ulerythematosa reticulata

FinlandICD-10-FI

L66.4Folliculitis ulerythematosa reticulata

GermanyICD-10-GM

L66.4Atrophodermia vermiculata

FranceICD-10-FR

L66.4Folliculite ulérythémateuse réticulée

NetherlandsICD-10-NL

L66.4folliculitis ulerythematosa reticulata

United StatesICD-10-CM

L66.4Folliculitis ulerythematosa reticulata

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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