Definition, Diagnosis and Classification of Diabetes Mellitus and its Complications Report of a WHO Consultation Part 1: Diagnosis and Classification of Diabetes Mellitus © World Health Organization 1999 This document is not a formal publication of the World Health Organization (WHO), and all rights are reserved by the Organization. The document may, however, be freely reviewed, abstracted, reproduced and translated, in part or in whole, but not for sale nor for use in conjunction with commercial purposes. The views expressed in documents by named authors are solely the responsibility of those authors Contents 1. Introduction 2. Definition and diagnostic criteria for diabetes mellitus and other categories of glucose intolerance 2.1 Definition 2.2 Diagnosis and diagnostic criteria 2.2.1 Diagnosis 2.2.2 Diabetes in children 2.3 Diagnostic criteria 2.3.1 Change in diagnostic value for