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This is an abbreviation for Release Format 2

Release Format 2

The file structures specified by SNOMED International for files used to distribute SNOMED CT content and derivatives.


In 2012 Release Format 2 replaced the original SNOMED CT release format used between the first release on 2002 and 2012. During an overlap period until 2016, both formats were used for the International Release.


  • RF2
  • SNOMED CT Release Format 2

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