Updates included in the ATC/DDD Index

Updates to be included in the ATC/DDD Index 2025 (valid from
1 January 2025)

New ATC 5th levels
New ATC 3rd and 4th levels
ATC level alterations
ATC level name alterations
New DDDs
DDD alterations

The complete list of the new ATC codes, DDDs and alterations to be included in the ATC/DDD Index 2025 is available in Excel format here.

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 2026).

Updates included in the ATC/DDD Index 2024

The complete list of the new ATC codes, DDDs and alterations included in the ATC/DDD Index 2024 is available in Excel format here.

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