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Notes

• A new version of the International Edition of SNOMED CT is released twice a year (in January and July). 
• National

  Gloss
  PreSpace false t extensions

   generally follow this cycle, however it is often with a three-month delay. Some extensions (notably those including medication-related concepts) are released more frequently.

Examples

• The International Edition, 20180131 (dated January 31, 2018).
• The US National Edition, 20180501. 

Alternatives

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SNOMED CT versioned edition