Known Issues

Known

issues include content or technical issues where the root cause is understood, and the resolution has been discussed and agreed to but

have yet to be implemented. This can be due to a number of reasons

which include lack of capacity within the current

editorial cycle

and risk of impact to the stability of SNOMED CT if the fix were to be deployed at that stage in the

product lifecycle.

Terminology issues

A) Issues identified and corrected in the October 2018 release, refer to the Current Release.

B) Known Issues identified but will not be changed for different reasons listed below:

1. 1. Concepts Containing Conjunctions AND potential for ambiguous concept
      When Editorial Guidelines were more « flexible » some « deviant » concepts were added to the CA Edition. These may be present in Communicable Disease and CPAC Projects/subsets. Since then, the Editorial criteria have matured and these types of concepts would no longer be added to the CA Edition. The following « deviant » concepts will be kept in the CA Edition until they are no longer required.
      Examples: 10741000087101|Malignant tumor of ovary and/or fallopian tube (disorder)| 

or 20721000087101|Meningitis or encephalitis (disorder)|

or 8141000087102|Anaphylaxis to previous dose or a constituent of this vaccine (situation)|

b. Duplicate Concepts

Some concepts were potentially duplicate concepts of existing concepts in the International Edition. 

Example: 577191261000087109|Congenital rubella infection (disorder)| and 1857005|Congenital rubella syndrome (disorder)|

c. Concepts Missing Definitions and Concepts Missing Refinements

Infoway does not « Fully model » any of its Edition content. This is a reason why there might be some missing defining relationships that could better represent the meaning of a concept. The rationales for not modeling the CA Edition are:

a) Duplicate concepts

There is the potential that CA Edition concepts duplicate existing concepts in the International Edition. 

The following concept was promoted to SNOMED International but modelled differently from the Canadian concept due to new editorial guidelines.

• CA Edition concept
  • 60591000087104 |Vaccine product containing only Streptococcus pneumoniae Danish serotype 3, 6A, 7F, 8, 9N, 10A, 11A, 12F, 15A, 15B, 16F, 17F, 19A, 20A, 22F, 23A, 23B, 24F, 31, 33F, and 35B capsular polysaccharide antigens conjugated (medicinal product) |
• International Edition (core) concept
  • 1360050007 |Vaccine product containing only Streptococcus pneumoniae Danish 3, 6A, 7F, 8, 9N, 10A, 11A, 12F, 15A, de-O-acetylated 15B, 16F, 17F, 19A, 20A, 22F, 23A, 23B, 24F, 31, 33F, 35B capsular polysaccharide antigens conjugated (medicinal product) |

b) Concepts missing definitions and concepts missing refinements

Infoway does not fully model all concepts in the CA Edition because:

• When submitted to SNOMED International, they will fully model when applicable.
• International content must be completed and stable before the CA Edition content is modelled fully. 

As a result, there may occasionally be missing defining relationships that could be added to better represent the full and unambiguous meaning of a concept through logical definition.

c) Definition descriptions of the following reference sets will require updates due to changes of scope of the associated valuesets:

• 22051000087105 |Historical name codes for passive immunizing agents reference set (foundation metadata concept)|
  • Valueset: PassiveHistoricalImmunizingAgentCode
• 22041000087107 |Administered tradename codes for passive immunizing agents reference set (foundation metadata concept)|Passive administered tradename codes reference set
  • Valueset: PassiveAdministeredImmunizingAgentCode
• 22071000087104 |Historical name codes for vaccines reference set (foundation metadata concept)|
  • Valueset: VaccineHistoricalNameCode
• 22061000087108 |Administered tradename codes for vaccines reference set (foundation metadata concept)|
  • Valueset: VaccineAdministeredTradeNameCode

Technical issues

• MRCM issues

The rows corresponding to the additional attributes (62171000087105 |Has product monograph URL (attribute)| and 62141000087102 |Has last batch on market product expiration date (attribute)|) with concrete values ​​could not be added to the MRCMAttributeDomain and MRCMAttributeRange files

d. Incomplete Coverage

Some concepts were missing and therefore that was incomplete content coverage.

Examples: 22231000087107|Structure of nail of all fingers (body structure)| is a child of 70327001|Structure of all fingers (body structure)|. The concept 70327001|Structure of all fingers (body structure)| includes the following subtypes:

362779006|All fingers (body structure)|

• 22599004|Skin structure of all fingers (body structure)|

o 368364009|Entire skin of all fingers (body structure)|

• 88814004|Subcutaneous tissue structure of all fingers (body structure)|

o 368365005|Entire subcutaneous tissue of all fingers (body structure)|

• 22231000087107|Structure of nail of all fingers (body structure)|

It appears that a concept “Entire nail of all fingers” should also be created for completeness.

Technical issues

.