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- Change Major – this includes system changes to Property, System (specimen) changes, methodology changes and property changes , Scale, Method as well as changes and/or corrections to the Canadian Component Name. These changes may impact mapping decisions made previously and may change the intent and use of the code; they need to be reviewed carefully.
- Change Minor – this includes subtle corrections to the Class, Time or Canadian Component Name or changes to the LOINC class. These changes will have less of an impact on previously mapped tests, but should be reviewed nonetheless. They will not typically impact the intent of the code.
- Change Name – this includes changes to the LOINC component name which ultimately affects the Canadian Component name and the Canadian Name. These changes may impact mapping decisions made previously and may change the intent and use of the code; they need to be reviewed carefully.
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