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• Organizations may add, inactivate or modify components or derivatives which belong to modules they own
  • Additions or changes to components and derivatives which belong to modules maintained by SNOMED International or other organizations must be avoided
    • The enumerated values used in RF2 components which form part of an extension must be all be represented by metadata concepts. These concepts may belong to modules in the International Edition, modules which belong to another extension producer, or modules owned by the extension producer. Please refer to concept enumerations in the Terminology Services Guide for more information about concept enumerations.
  • Components which belong to modules in the International Edition or modules which belong to another extension producer, can be inactivated using reference sets which specify components for exclusion 
  • Consider the mutability of component attributes to determine which changes are permissible when modifying components which belong to modules in the International Edition or modules which belong to another extension producer
• Issues with International Edition which impact content in an extension should be raised using a content request

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