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ICD-10 diagnosis code

E66 Obesity

This page in Swedish

E66 is the ICD-10 code for Obesity. It is a three-character category divided into 5 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block E65–E68 (Obesity and other hyperalimentation) in Chapter IV, Endocrine, nutritional and metabolic diseases.

Code type
Category (3 characters)
Chapter
IV · E00–E90
Classification
WHO ICD-10, 2019 version

What E66 excludes

Conditions that look similar but belong under another code.

  • adiposogenital dystrophy E23.6
  • lipomatosis:
  • Prader-Willi syndrome Q87.1

Subcodes of E66

E66 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

E66Fetma

DenmarkICD-10-DK

DE66Overvægt og fedme

FinlandICD-10-FI

E66Lihavuus

GermanyICD-10-GM

E66Adipositas

FranceICD-10-FR

E66Obésité

NetherlandsICD-10-NL

E66vetzucht

United StatesICD-10-CM

Listed through more specific codes:

  • E66.3Overweight

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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