Page History

...

The version table should be updated each time the document receives significant edits and is passed to an audience other than close participants to an editing process.

pan-Canadian LOINC Observation Code Database (pCLOCD) Terms of Use

...

The pCLOCD “Result Value Type” attributes designate the recommended or, as outlined below, the required reporting data format to be selected.  The following table summarizes the possible Result Value Type values:

Table 1 pan-Canadian LOINC Observation Code Database Attribute

...

There are result observations in classes other than Microbiology and Anatomic Pathology where interpretations are reported.  These “interpretation” types of records are characterized by a LOINC Property of “IMP” and will allow for coded and text result values.  The expected result value is differentiated only by the LOINC Scale.  The observation records in the pCLOCD that should be used for text result values will have the LOINC scale as NAR (Narrative).  The records that should be used for coded text result values will have the LOINC scale as NOM (Nominal).  Examples include:

3.4 Pan-Canadian Name

The natural language test name is the name that is most often referred to for ordering and reporting a laboratory test/observation.  The structure of LOINC sufficiently demonstrates the difficulty to fully identify tests using test names that are both unambiguous and yet easy to read. Many LOINC attributes are abbreviated for database use and not easily understandable; therefore, translations for the LOINC attributes have been included in the pCLOCD and used to automatically generate the pan-Canadian Name.

...

Pan-Canadian Component Name; LOINC System; LOINC Timing; LOINC Method

The LOINC System, Timing and Method are all optional but, if included, must be in the order provided above.

...

The unique jurisdictional identifier can be used until a LOINC or XCA code is returned.   Jurisdictions that intend to use their temporary jurisdictional code must plan appropriate processes for ensuring that all receivers of the data (within and outside of the jurisdiction) can interpret the data.  More information on pre-adopting codes can be found here.  

All requests for change will be logged and tracked.  An analysis will be undertaken that may result in further communication with the requestor.  If the request is determined to be a valid request for a new record, it will be assigned a pan-Canadian code using the following format:

• “XCAnnnnn-n” where,
  • “XCA” is the permanent first three characters;
  • “nnnnn” is a five digit sequential number that will increment by one for each new observation code; and
  • “-n” represents the check digit created from the five digits using the Mod 10 algorithm provided in Appendix A.

The pan-Canadian code will be the unique identifier that is used to submit the code to Regenstrief. The new XCA/ LOINC code will be sent back to the original requestor as soon as possible. The unique temporary jurisdictional identifier can be used until the Infoway Standards Team provides the LOINC or final XCA code.  Jurisdictions that plan on using their temporary jurisdictional code must plan appropriate processes for ensuring that all receivers of the data (within and outside of the jurisdiction) can interpret the data.

...

All inquiries can be emailed to the Infoway Infodesk: [email protected]

The algorithm for calculating a Mod 10 check digit for a LOINC code is as follows:

Table 2 Mod-10 Algorithm