WHO Adverse Reaction Terminology(English)

• open-ended terminology for coding of adverse reaction terms. Exists in several languages and is used by drug regulatory agencies and pharmaceutical companies, with new terms added as necessary. Built up as a tree structure (“system-organ class”, “high level term”, “preferred term”); it comprises approx. 1,600 preferred terms
• WHO
• Adverse effect, Medical informatics, Terminology
• https://link.sp…11-89836-9_1467