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Title
ATC/DDD Classification (Final).
Abstract
The article presents a finalized list of new Anatomical Therapeutic Chemical (ATC) codes and Defined Daily Doses (DDDs) for various pharmaceutical substances. It discusses the list approved during a meeting of the WHO International Working Group for Drug Statistics Methodology in October 2022; and the changes encompass new ATC codes, alterations to existing codes, new DDDs for specific substances and adjustments to ATC level names.