Postal address:
WHO Collaborating Centre for Drug Statistics Methodology
Norwegian Institute of Public Health
Postboks 222 Sk°yen
0213 Oslo

Visiting/delivery address:
Sandakerveien 24C
Bygg C
0473 Oslo

Tel:  +47 21 07 81 60

Updates included in the ATC/DDD Index

Updates to be included in the searchable Index in the end of December
ATC/DDD alterations 2021
New ATC 2021
New DDDs 2021

For Spanish versions, please contact the .

Temporary ATC/DDDs and alterations decided at the latest meeting(s) in the WHO international Working Group see Lists of temporary ATC/DDD and alterations (to be implemented in the Index 2022).

Last updated: 2021-03-15