It was only with the introduction of telematics in healthcare that an urgent need was revealed for organised standardisation activities and for a common use of standards in healthcare informatics.

The objective of CEN/TC 251/WG 2 is the semantic organisation of information and knowledge so as to make it of practical use in the domains of healthcare informatics and telematics. Its Work Items are focusing on the interrelationships of concepts and on structures for concepts systems. The production of detailed coding schemes and selection of the best existing coding schemes are actually outside the scope of WG 2.

So far Working Group 2 has proved very productive and successful.