ICD-10 diagnosis code

L91 Hypertrophic disorders of skin

L91 is the ICD-10 code for Hypertrophic disorders of skin. It is a three-character category divided into 3 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block L80–L99 (Other disorders of the skin and subcutaneous tissue) 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

Subcodes of L91

L91 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

L91Hypertrofiska hudsjukdomar

DenmarkICD-10-DK

DL91Hypertrofiske forstyrrelser i hud

FinlandICD-10-FI

L91Hypertrofiset ihosairaudet

GermanyICD-10-GM

L91Hypertrophe Hautkrankheiten

FranceICD-10-FR

L91Affections hypertrophiques de la peau

NetherlandsICD-10-NL

L91hypertrofische huidaandoeningen

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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