Document Author(s):

Editorial Panel

Change Owner:

Penni Hernandez

Content Editor:

Penni Hernandez

Version:

1.1

Date Created:

27 September 2016

Document status

Approved

Related Tracker Artifact(s):

https://snomed.atlassian.net/browse/IHTSDO-980

Complete

Approved by

Approval Date

?

Head of Terminology

20170109

?

<Other>

Descriptions and Concepts

Section 1.6 Transfer of Responsibility between Organizations located in the Extension Specification and Guide states in relation of transfer of components from an extension to the International Release (or a parent extension) that " As a result of revised to guidance on SNOMED CT Identifier Updates, since 2011, some transfers can be made without changing the Identifier of the component provided that the RF2 format moduleId field is used to denote that the component is now being issued as part of a different module". In relation to demotion of content however, the same guidance notes that for transfer of one or more components between other Extensions or from the International Release to any Extension a component must be assigned a new SCTID.

Whilst noting promotion of components is possible the current practice is not to move descriptions between different modules.

It also needs to be noted that the current definition provided for this value for both concepts and descriptions has been identified as incorrect as the description is not made inactive if it is moved to a parent module.

Where a description is inactivated as the concept has been moved to the International Edition or an extension and a new description with the same string created the current description should be inactivated as a | Duplicate component |.

No change to the concept status. It will remain active.

Given that descriptions are not being promoted together with the fact that the current functionality within the SCA Tool does not allow this action to be undertaken this value should be removed from the list of options provided for description inactivation values in the SCA Tool.

D: The Description has been made inactive because it has been moved to another namespace.

 C: The Concept has been made inactive because it has been moved to another namespace.

Given this value is not required for the International Edition, no new definition is proposed as part of this work. In noting that, the Head and Education and Product Support has been advised of the issue with the current definition.

N/A

Descriptions

The inactivation of a concept does not necessarily result in inactivation of the descriptions associated the concept in RF2. Each inactivation of a concept will generate multiple entries for associated descriptions. 313,597 entries have been included in the 900000000000490003|Description inactivation indicator attribute value reference set (foundation metadata concept)| for inactive concepts.

One might argue that these entries should not be this refset because these descriptions are still active. However, it is out of the scope for this project.

No change to the concept status. This value is in use as it is applied in the backend automatically when a concept is inactivated.

The value is to be removed from the list of options provided for description inactivation values in the SCA Tool.

D:The Description is still active but the Concept it refers to is now inactive.

C: N/A

N/A

N/A

Descriptions and Concepts

Duplication of synonyms is allowed. Where a synonym with the same string has been applied to two concepts and one is found to be inappropriate e.g. not semantically equivalent, then that description inactivation value should be applied.

The duplication of an FSN string is not permitted. (Noting here there may be more than one FSN for a concept, though only one may be marked as preferred for a language reference set). The International Edition uses US English for the FSN and the SCA Tool includes validation rules which prevent two FSN's using the same string.

The new SCA tool currently includes this inactivation indicator value and for the July 2016 release ten descriptions were inactivated with this value.

This value is also used for concept inactivation and will continue to be.

Input from Linda Bird: "It may be appropriate to use this inactivation value, when the same concept has 2 descriptions, which both have exactly the same term (and language and caseSignificanceId) .... in this situation (which could, for example, occur when a concept is promoted and assigned new descriptions which were also in the extension), this value may be applicable". This feedback has identified the need to retain this value in the range of options provided in the SCA Tool for description inactivation values for use by those managing extensions.

This concept needs to remain active to support both backwards compatibility and inactivation of concepts.

This value is to remain on the list of options provided for description inactivation values in the SCA Tool. It is not required for management of the International Edition. If the functionality is available to change the range of values available so that a narrower range of options can be offered for working on the International Edition then this should be considered.

D: The Description has been made inactive because it duplicates another Description.

C: The Concept has been made inactive because it has the same meaning as another Concept.

N/A

N/A

Descriptions and Concepts

This value was applied for 210 descriptions which were inactivated as part of the work for the 2016 July International Release.

No change to the concept status. It will remain active.

Clarification of the meaning of this concept through revision of the text definition. This clarification would be relevant for both concept and description inactivation.

Guidance development required noting clarification of the meaning of this value and provision of examples to support understanding.

This value is to remain on the list of options provided for description inactivation values in the SCA Tool.

D: The Description has been made inactive because it contains an error.

 C: The Concept has been made inactive because it contains an error.

D: Any description that contains a technical error.

C: Any concept that contains a technical error.

Description examples:

Case significance changes e.g. Alpha where the lower case a should have been used.

Spelling errors e.g. A description where Asthma is misspelt "Assthma"

Concept examples:

Descriptions

The usage of the value |Inappropriate component| has declined over the time. The reason for this is currently not understood but potential reasons include lack of clarity in meaning and tooling changes.

Feedback from some members of the internal content team has identified that the meaning of this concept is vague.

No change to the concept status to support backward compatibility.

Guidance development required noting this value should no longer be used for description inactivation.

The value is to be removed from the list of options provided for description inactivation values in the SCA Tool.

D: The Description has been made inactive because the associated term does not describe the associated Concept.

C: N/A

Descriptions and Concepts

The value has been applied as part of the inactivation of classification concepts such as NOS, NEC.

Guidance material exists for descriptions noting this value should no longer be applied. The value may appear in retrospective data.

No change to the concept status to support backward compatibility.

The value is to be removed from the list of options provided for description inactivation values in the SCA Tool.

D:The Description refers to a Concept that has limited status.

Note: This value should not be used in future releases as Limited status Concepts are now inactive. However, this value may appear on retrospective data in a full release.

C: The Concept is of limited value as it contains classification categories such as 'Not Elsewhere Classified' which do not have a stable meaning within SNOMED CT. Until 2010 concepts with this status were regarded as active but since then they have been marked as inactive.

N/A

N/A

Descriptions and Concepts

This value is currently used as an inactivation indicator value for both concepts and descriptions.

No change to the concept status.

Clarification of the meaning of this concept through revision of the text definition. This clarification would be relevant for both concept and description inactivation.

 Guidance development required noting clarification of the meaning of this value and provision of examples to support understanding.

This value is to remain on the list of options provided for description inactivation values in the SCA Tool.

D: The Description has been made inactive because it is an outdated name or spelling that is no longer used.

C: The Concept has been made inactive because it is an outdated concept that is no longer used.

D: Any description that is no longer current, useful, appropriate or acceptable.

C: Any concept that is no longer current, useful, appropriate or acceptable.

Description examples:

Descriptions that are no longer appropriate. The description "Funny looking kid" was inactivated from 112630007|Abnormal facies (finding)|.

 Concept examples: Conditions that over time become known under a different name. The FSN for 67782005|Adult respiratory distress syndrome (disorder)| was inactivated and replaced by |Acute respiratory distress syndrome (disorder)|

Descriptions and Concepts

The value has been applied along with the status change for concepts that are moving to the module, such as, from national extension to International edition.

As noted above descriptions can not be moved from the International Edition to an extension without inactivation of the description and for Extension managers using the SCA tool, the option to promote descriptions is currently not available.

No change to the concept status to support backward compatibility.

The value is to be removed from the list of options provided for description inactivation values in the SCA Tool.

D:The Description is still active but it is in the process of being moved to another namespace and when the move is complete it will be marked as inactive.

 C: The Concept is still active but it is in the process of being moved to another namespace and when the move is complete it will be marked as inactive.

N/A

N/A

"Reason not stated"

(Not a value but available in the Authoring Platform)

Descriptions and Concepts

This is not an RF2 value.

The value is to be removed from the list of options provided for description inactivation values in the SCA Tool.

Nil

Include in the range of permitted values for descriptions.

Guidance development required in relation to the meaning of this value, its use and provision of examples to support understanding.

 This value is to be added to the list of options provided for description inactivation values in the SCA Tool.

Further consideration is required to determine whether this value should also be available for concept inactivation.

New inactivation value - no current definition.

D: A description that fails to comply with the current editorial guidance.

NOTE: this includes ambiguous or vague descriptions that are inactivated.

C: A concept that fails to comply with the current editorial guidance. (see comments in planned action column)

 Description examples:

The description 167230004| Urine: turbid (finding) | was inactivated and replaced by “Turbid urine (finding)”

Nil

Include in the range of permitted values for descriptions.

Guidance development required in relation to the meaning of this value, it's use and provision of examples to support understanding.

This value is to be added to the list of options provided for description inactivation values in the SCA Tool.

Not required for concepts.

New description inactivation value- no current definition.

D: A description that does not represent the same meaning as the concept FSN. For example, descriptions that are broader than, narrower than, or different to the FSN.

Description examples:

Examples as noted in the Editorial Guide: 7.1.4 Synonym

2008-07-31

140

53102

2009-01-31

150

1713

2009-07-31

96

1547

2010-01-31

57

2021

2010-07-31

71

1124

2011-01-31

64

249

2011-07-31

41

493

2012-01-31

13

1092

2012-07-31

39

291

2013-01-31

32

266

2013-07-31

28

943

2014-01-31

33

6283

2014-07-31

44

1132

2015-01-31

14

2437

2015-07-31

8

1914

2016-01-31

3

4274

2016-07-31

356