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  • Level 0: No support for storage of
  • Level 1: Support for storage of :
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    _83b41d37-9666-4a92-a163-a03f39ab41d1__3
    _83b41d37-9666-4a92-a163-a03f39ab41d1__3
    • Support for storage of a implies the ability to store a representation of a as part of each item for which is used:
      Anchor
      _83b41d37-9666-4a92-a163-a03f39ab41d1__1
      _83b41d37-9666-4a92-a163-a03f39ab41d1__1
      • The may be represented as a 64-bit integer or as an 18-digit string ;
      • Other internal representations may be used provided they can be resolved to the appropriate for display, communication or processing.
  • Level 2: Support for storage of :
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    _83b41d37-9666-4a92-a163-a03f39ab41d1__2
    _83b41d37-9666-4a92-a163-a03f39ab41d1__2
    • Support for storage of implies the ability to store a representation that captures the logical model of a :
      • The simplest representation of a is the . Due to the open-ended nature of , this representation results in a string of variable length with no clear-cut maximum length.
      • The guide discusses alternative representations including the use of reference table which enables use of a fixed length reference within the records. This approach uses a UUID which can be represented as a 128-bit integer or as a hexadecimal string (see Storing expressions ) .
    • This level has variants depending on the extent of support for storage:
      Anchor
      _83b41d37-9666-4a92-a163-a03f39ab41d1__e
      _83b41d37-9666-4a92-a163-a03f39ab41d1__e
      • Low: Storage of limited to specific fields in the record structure;
      • High: Full support for storage of allowing any valid to be stored and retrieved.

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  • Level 0: No native support for enabled data retrieval:
    Anchor
    _f60106b9-a1c8-44c6-82d9-75965e0d0bce__f
    _f60106b9-a1c8-44c6-82d9-75965e0d0bce__f
    • This level has variants depending on whether it can map code in exported data to :
      Anchor
      _f60106b9-a1c8-44c6-82d9-75965e0d0bce__0
      _f60106b9-a1c8-44c6-82d9-75965e0d0bce__0
      • Low: No support for based analysis;
      • High: Support for extracting a specified set of locally coded data and mapping the local codes to appropriate for central aggregation and analysis.
  • Level 1: Support for retrieval of :
    Anchor
    _f60106b9-a1c8-44c6-82d9-75965e0d0bce__1
    _f60106b9-a1c8-44c6-82d9-75965e0d0bce__1
    • This level has a spectrum of variants depending on the level of support for the following features:
      Anchor
      _f60106b9-a1c8-44c6-82d9-75965e0d0bce__5
      _f60106b9-a1c8-44c6-82d9-75965e0d0bce__5
      • Query expressivity: The ability to express query predicates that explicitly include or exclude of specifically identified ;
      • Subsumption testing: Use of to interpret and evaluate queries;
      • : The ability to retrieve equivalent information even if it is represented in different structures within the record;
      • Context awareness: The ability to take account of contextual information, derived from the record structure and/or the , when interpreting and evaluating queries;
      • Performance: The ability to interpret and evaluate queries within an appropriate period of time and without causing deterioration in other system functions.
  • Level 2: Support for retrieval of :
    Anchor
    _f60106b9-a1c8-44c6-82d9-75965e0d0bce__6
    _f60106b9-a1c8-44c6-82d9-75965e0d0bce__6
    • This level has a spectrum of variants depending on the level of support for the following additional aspects of the features specified for Level 1:
      Anchor
      _f60106b9-a1c8-44c6-82d9-75965e0d0bce__e
      _f60106b9-a1c8-44c6-82d9-75965e0d0bce__e
      • Query expressivity: The ability to represent predicates in a query ;
      • Subsumption testing: Use of and (or a ) to determine whether are subsumed by query predicates;
      • : Use of and (or a ) to determine between different and in different structures within the record;
      • Context awareness: The ability to take account of contextual information derived from the record structure and/or , when interpreting and evaluating queries;
      • Performance: The ability to interpret and evaluate queries that support representations within an appropriate period of time and without causing deterioration in other system functions.

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  • Anchor
    _c0528298-1f3b-4abc-b965-97db5ade147d__d
    _c0528298-1f3b-4abc-b965-97db5ade147d__d
    Level 0: Mapping based support for communication of :
    • Inbound communications containing :
      Anchor
      _c0528298-1f3b-4abc-b965-97db5ade147d__7
      _c0528298-1f3b-4abc-b965-97db5ade147d__7
      • Low: Not supported.
      • Medium: Rendered as human-readable text. Unless the inbound message also contains the term text, this requires access to some enable to lookup and display the relevant terms .
      • High: Mapped to an internal coding scheme or classification. This may be feasible to support specific use cases but not for the full scope of clinical information.
    • Outbound communication containing :
      • Low: Not supported;
      • Medium: Supported for a few specific types of clinical data in the existing system by mapping to from an existing code system to ;
      • High: Supported for most clinical data in the existing system by mapping to from an existing code system to .
  • Level 1: Native support for communication of :
    • Inbound communications containing :
      • Low: Supported for some types of information but constrained by data entry and storage capabilities;
      • High: Supported for most types of information.
    • Outbound communications containing :
      Anchor
      _c0528298-1f3b-4abc-b965-97db5ade147d__6
      _c0528298-1f3b-4abc-b965-97db5ade147d__6
      • Low: Supported but limited by data entry and storage and retrieval capabilities;
      • High: Supported for most types of information.
  • Level 2: Native support for communication of :
    Anchor
    _c0528298-1f3b-4abc-b965-97db5ade147d__e
    _c0528298-1f3b-4abc-b965-97db5ade147d__e
    • Inbound communications containing :
      • Low: Support limited to particular attributes (e.g. |laterality|, |causative agent|) in ;
      • Medium: Support for general applied to some types of information;
      • High: Able to receive, process and store any valid .
    • Outbound communications containing :
      Anchor
      _c0528298-1f3b-4abc-b965-97db5ade147d__3
      _c0528298-1f3b-4abc-b965-97db5ade147d__3
      • Low: Support limited to particular attributes (e.g. |laterality|, |causative agent|) in ;
      • Medium: Support for outbound communication of any that can be entered or stored in the system;
      • High: Support for outbound communication of any valid .