Current Version - Under Revision
The meaning of coded clinical data encoded using SNOMED International is maintained using SNOMED CT mechanisms that support
concept permanence and version control. Even when a
Concept permanence ensures that codes assigned in SNOMED International are retained, accessible, and not reused. The codes used in are present in900000000000498005 |SNOMED RT ID simple map reference set| which links the old alphanumeric codes to the MLDS). For further information about the structure of this map reference set please see the specification of Simple map reference sets.
The 900000000000498005 |SNOMED RT ID simple map reference set| can be used either to allow recognition of legacy data by