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Terminology owner/maintenance organisation

Name, contact details, website

WHO Collaborating Centre for Drug Statistics Methodology
Norwegian Institute of Public Health
Postboks 222 Skøyen
0213 Oslo

 +47 21 07 81 60 

Formal name of the code system

Antatomic, Therapeutic and Chemical Classification (and DDD - Defined Daily Doses)

Short name or abbreviation of the code system name

Technical identifier/s of the code system (OIDs, URNs etc)2.16.840.1.113883.6.73.1

Scope/domain statement for the code system

(Official or from HTA)

The ATC/DDD system is a 5 level hierarchical classification of active ingredient substances used in medicinal products.  It is designed to serve as a tool for drug utilization monitoring and research in order to improve quality of drug use.  One component of this is the presentation and comparison of drug consumption statistics at international and other levels.

Link to information about the code system - including how to obtain the content

Arrangement or agreements with HL7 for use of content

IP Information and Licensing Information

HL7 users of this information - which HL7 products use this link (if known)

Process to request content change

Direct to ATC/DDD

Other useful Information

Information current as at (date)

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