Terminology & Classifications News

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  • Terminology and Classifications 2020 Annual Survey

    Published: December 2020

    Dear Colleague,

    Our Terminology and Classifications annual survey is now open for your feedback about how effectively we are meeting your needs. As always, your input provides very valuable customer insight and helps us to understand where we need to make adjustments to improve our products, services and communications. The survey includes some new questions relating to our response to COVID-19, as we are keen to know how we can better serve and support our customers throughout the ongoing pandemic. The survey is open until Wednesday 31 March 2021, so please have your say.

     Kind regards,

     Terminology and Classifications Delivery Service

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    By Claire Fennell 1 year ago

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  • Update to Query Resolution Database

    Published: December 2020

    Dear Colleague,

    The resolution UID 13461 Delivery of a pregnancy with abortive outcome has been removed and replaced with UID 13842 to clarify the intention of PChSR1: Coding deliveries (R17-R25).

    Kind regards

    Terminology & Classifications Delivery Service 

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    By Victoria Tudge 1 year ago

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  • eVersion Notes for ICD-10 Emergency Use Codes

    Published November 2020

    Dear Colleague, 

    There are now a number of codes within categories U06.- Emergency use of U06 and U07.- Emergency use of U07 that have been designated for use for Zika Virus (U06.9), Vaping (U07.0) and COVID-19 (U07.1-U07.5). The codes within categories U06 and U07 are available within the ICD-10 5th Edition Codes and Titles file and the WHO ICD-10 Volume 1 Tabular List but their descriptions remain as ‘Emergency use of’ as it would be too great a burden on users to issue an update to the files.

    In order to assist users of the eVersion we have created a set of shared notes reflecting the code descriptions of the codes designated for emergency use within categories U06 and U07 that can be imported into the eVersion. These are available on our Classifications Browser and e-Versions page.

    Kind regards,

    Terminology and Classifications Delivery Service

    By Andrew Brooke 1 year ago

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  • ICD-10 Emergency use codes for COVID-19

    Published: November 2020

    Dear Colleague, 

    The following three ICD-10 codes in category U07 are now available for use for episodes ending on or after 01 November 2020 to identify conditions that occur in the context of COVID-19. 

    U07.3 Personal history of COVID-19

    U07.4 Post COVID-19 condition

    U07.5 Multisystem inflammatory syndrome associated with COVID-19

    These codes are for use with immediate effect. There is no expectation for episodes already coded on or after 01 November to be recoded, unless there is a local requirement to do so.

    These codes must be used with the COVID-19 Clinical Coding Standards and Guidance which have been updated to instruct coders on their use.

    Note that the conditions at codes U07.3, U07.4 and U07.5 were designated by the World Health Organisation (WHO) at categories U08, U09 and U10 for countries that are unable to report codes at four-character level. However, as these categories are not currently included as part of the NHS ICD-10 5th Edition data file, the WHO has agreed that countries which are technically constrained from using the issued three-character categories may utilise available emergency four-character codes already included at U07. Further information is available on the COVID-19 and ICD-10 page on Delen.

    The emergency codes and descriptions and associated COVID-19 clinical coding standards and guidance are available on the COVID-19 National Clinical Coding Standards and Guidance page.

    Kind regards,

    Terminology and Classifications Delivery Service

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    By Victoria Tudge 1 year ago

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  • Delay to 31.0.0 SNOMED CT UK Edition Release

    Published: October 2020

    Dear colleague,

    Please note that due to a service disruption there has been a delay to the production of the 31.0.0 SNOMED CT UK Edition.

    This will delay the release of the:

    • SNOMED CT International Edition
    • SNOMED CT UK Clinical Extension
    • SNOMED CT UK Drug Extension

    The 31.0.0 SNOMED CT UK Edition will be published on Wednesday 11 November 2020, instead of its expected release date of Wednesday 04 November 2020.

    NHS Digital is sorry for any inconvenience that this will cause you.

    Kind regards

    Terminology & Classifications Delivery Service

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    By Katy Park 1 year ago

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  • Query Resolution Database Update

    Published: October 2020

    Dear Colleague,

    The resolution UID 2997 has been removed and replaced with UID 13544.

    Kind regards

    Terminology & Classifications Delivery Service 

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    By Katy Park 1 year ago

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  • Consultation on SNOMED CT Release Frequency and Changes to Subfolder Structure

    Published: September 2020

    Dear colleague,

    The uncertainty surrounding COVID-19 has necessitated the need for a rapid and responsive service beyond what our regular six-monthly release cycle can offer. We are running a consultation on our SNOMED CT UK Clinical Edition frequency for 2020 and beyond.

    Release Frequency

    We therefore propose a permanent shift to a minimum of seven scheduled releases of the UK Clinical Edition annually, made up of:

    • Two major releases annually in September/October and March, to update SNOMED CT UK Edition with the latest International Edition releases
    • Five minor releases of SNOMED CT UK Clinical Edition compromising of only incremental updates and other additions to UK Clinical Edition content
    • Unlike the 2020 “microreleases”, future minor releases will not be restricted to urgent COVID-19 related content only. Instead, all UK-specific “business as usual” content that was previously released only in two batches (April and October) will become distributed more or less equally across the full set of seven or more annual releases, both major and minor.
    • The SNOMED CT Drug Edition four-weekly release cycle will remain unchanged: each release of SNOMED CT UK Clinical Edition will always co-occur with a scheduled release of the Drug Edition.

    Should the clinical need arise, this typical annual schedule of seven releases may exceptionally be supplemented by one or more additional unscheduled emergency releases; these would however also occur on the same date as the next scheduled release of the UK Drug Edition. The proposed continuing release schedule is therefore fundamentally based on the underlying 4-weekly cycle time of the UK Drug Edition:

    Planned changes to the SNOMED CT UK Edition release subfolder structure

    From the first scheduled release in 2021 (27 January 2021), all PRODUCTION releases of UK Clinical and Drug will adopt the BETA encoding structure. All releases of both UK Clinical and UK Drug Editions will continue to be published in parallel in both the older LEGACY encoding as well as in the new PRODUCTION encoding, but only until the end of March 2021 after which the LEGACY encoding will be permanently withdrawn

    For a more detailed explanation of the motivations for the BETA bundling, see the webinar recording at this location.  Detailed information is also provided in the UK Clinical Edition SNOMED CT Technical overview document, section 2.4.1 and 2.4.2. 

    Throughout the remainder of 2020, PRODUCTION releases will remain as before but with the same content always co-published on TRUD in BETA format, as Test Releases: Clinical Edition and Drug Extension 29.3.0, RF2, BETA: Full, Snapshot & Delta.

    Kind regards

    Terminology and Classifications Delivery Service 

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    By Katy Park 2 years ago

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  • Revised Autumn 2020 Schedule for UK SNOMED Releases

    Published: August 2020

    Dear Colleague,

    The next scheduled combined releases of the SNOMED UK Clinical and Drug Extensions, on 07 October, were both planned to be “major releases” involving very substantial changes imposed by rebasing the content on the latest July 2020 SNOMED CT International Edition.

    Unfortunately, technical teething issues with an upgrade to our NHS Digital SNOMED CT authoring platform have eaten too far into our authoring contingency time. We have, therefore, reluctantly taken the decision to descope that “content rebasing” element from both 07 October 2020 releases.

    Whilst there will still be 07 October 2020 releases for both extensions, they are both now descoped to being only a 30.2.0 “minor release”: both will remain based on the July 2019 SNOMED CT International Edition (as for the existing 30.0.0 releases). The SNOMED CT UK Clinical Extension will add only fairly modest quantities of new UK content, some of which will be specific to managing COVID-19 but most of which will not. The 30.2.0 SNOMED CT UK Drug Extension release will be a normal four-weekly release , following the immediately preceding release of 30.1.0 SNOMED CT UK Drug Extension scheduled for 9 September 2020.

    The originally planned “major release” element will, therefore, now occur at a new, previously unscheduled combined release on 04 November 2020, in which all content to date in both extensions will finally become simultaneously rebased to the July 2020 SNOMED CT International Edition. Deferring until the already scheduled 02 December 2020 release date was considered, but many suppliers had previously expressed a strong preference against “major releases” in December 2020.

    The  revised release schedule to the end of 2020 is, therefore:

    07 October 2020

    TRUD Version 30.2.0
    EffectiveTime 20200930
    Base Content July 2019 SNOMED CT International Edition (the same as 30.0.0 12 August 2020)
    New Content
    • Additional routine non-COVID-19 content for the UK
    • Any requested new COVID-19 content (as per a microrelease)
    • Full ICD-10 and OPCS-4 maps covering above new content
    • Full updates of refsets to align with new content

     

     

     

     

     

     

     


    04 November 2020

    TRUD Version 31.0.0
    EffectiveTime 20201028
    Base Content July 2020 SNOMED CT International Edition
    New Content
    • Additional routine non-COVID-19 content for the UK
    • Any requested new COVID-19 content (as per a microrelease)
    • Full ICD-10 and OPCS-4 maps covering above new content
    • Full updates of refsets to align with new content



     

     

     

     



    02 December 2020

    TRUD Version 31.1.0
    EffectiveTime 20201125
    Base Content July 2020 SNOMED CT International Edition
    New Content
    • Additional routine non-COVID-19 content for the UK
    • Any requested new COVID-19 content (as per a microrelease)
    • Full ICD-10 and OPCS-4 maps covering above new content
    • Full updates of refsets to align with new content


    Kind regards,

    Terminology & Classifications Delivery Service

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    By Katy Park 2 years ago

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  • Known issues with the Module Dependency Refset (MDR) file

    Published: August 2020

    Dear Colleague,

    The 15 April 2020 MDR release included some off-specification duplicate rows in which the same ID and effectiveTime appeared twice, but with different data. Attempts to build the standard unique composite key on {ID, effectiveTime} on the FULL data as distributed will therefore fail.

    The IDs and effectiveTimes involved are:

    • f0658b79-0cbc-116a-e044-0003ba13161a             20200415
    • f0658b79-0cbd-116a-e044-0003ba13161a            20200415

    This technical error has subsequently been published in all FULL file distributions made since 15 April.

    The error can not be removed by means of a further Delta, but is scheduled to be expunged from the distributed FULL files from the 7 October 2020 release.

    For those affected by the error, a range of mitigations exist:

    1. Do not load (or index) the MDR content at all, if it is not in fact required by your application.
    2. Depart from the specification and apply a non-unique index over {ID, effectiveTime}. Extraction of the latest snapshot of the MDR would not be adversely affected.
    3. Manually delete the erroneous data from the FULL table, before then proceeding with the usual unique indexation:

    DELETE FROM snomed.rf2_ssrefset_full
    WHERE ID IN (‘f0658b79-0cbc-116a-e044-0003ba13161a’,’f0658b79-0cbd-116a-e044-0003ba13161a’)
    AND effectiveTime = ‘20200415’
    AND linkedString1 = ‘20200401’;

        4. (From 7 October release) Replace your current cumulative FULL data for this table with a copy of a newer distribution, from which the error has  already been removed at source.

    Finally, NHS Digital would welcome more direct engagement with those who encounter this error, and especially those whose applications actively use the MDR data. We are keen to understand user expectations and experiences with it to date, and discuss other known MDR historical issues and plans for its future development.

    Kind regards,

    Terminology & Classifications Delivery Service

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    By Katy Park 2 years ago

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  • Query Resolution Database Update

    Published: August 2020

    Dear Colleague,

    The resolutions of UID 5060 and 3854 have been updated on 13 August 2020.

    Kind regards,

    Terminology & Classifications Delivery Service

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    By Katy Park 2 years ago

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