The ICD has become the international standard diagnostic classification for all general epidemiological and many health management purposes.

SNOMED International advances excellence in patient care through the delivery of a dynamic and sustainable, scientifically validated terminology and infrastructure that enables clinicians, researchers and patients to share health care knowledge worldwide.

SNOMED Clinical Terms (SNOMED CT) is a dynamic, scientifically validated clinical health care terminology and infrastructure that makes health care knowledge more usable and accessible.

The WHO constitution mandates the production of international classifications on health so that there is a consensual, meaningful and useful framework which governments, providers and consumers can use as a common language.

The Centre's main tasks are development and maintenance of the ATC/DDD system.