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Components within SNOMED Clinical Terms are identified and referenced using numeric Identifiers. These Identifiers have the data type SCTID ( SNOMED CT Identifier).
The SCTID data type is 64-bit Integer which is allocated and represented in accordance with a set of rules. These rules enable each Identifier to refer unambiguously to a unique component. They also support separate partitions for allocation of Identifiers for particular types of component and namespaces that distinguish between different issuing organizations.
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