Classification System of the PSS

Anatomical Therapeutic and Chemical Classification System (ATC)/Defined DailyDose (DDD)


The Anatomical Therapeutic and Chemical Classification System (ATC) divides drugs into different groups according to the organ or system on which they act and/or their therapeutic and chemical characteristics. The Defined Daily Dose (DDD) is the assumed average maintenance dose per day for a drug used for its main indication in adults. It is used to standardize the comparison of drug usage between different drugs or between different health care environments. (Administrative Order 2013-0025)

PSS Agency DOH
Source/s WHO Collaborating Centre for Drug Statistics Methodology/ Norwegian Institute of Public Health
PSA Board Resolution N/A
Statistical Domain Methodology of data collection, processing, dissemination and analysis
Statistical Activity Classifications
Statistical Domain - Related Demographic and social statistics
Statistical Activity - Related Health

Classification Systems of the PSS



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