MRCM attribute range reference set|
allows attributes to be associated with a valid value range for a given SNOMED CT content type and rule strength. The range of each attribute is defined using an Expression Constraint. This expression constraint represents the set of concepts, expressions, or concrete values that may be used as the value of the given attribute.1
The 723592007 | MRCM attribute range reference set| also provides a summary of the concept model rule associated with each attribute (including all valid domains and the given range) using an Expression Constraint representation. This attribute rule can be completely auto-generated by combining information from the 723604009 | MRCM attribute domain reference set| and the 723592007 | MRCM attribute range reference set| .
An 723592007 | MRCM attribute range reference set| is structured as shown in the following table.
|Part of Primary Key|
|NO||YES (Full /Snapshot)|
The inclusive date or time at which this version of the identified reference set member became the current version.
Note: In distribution files the effectiveTime should follow the short ISO date format (YYYYMMDD) and should not include the hours, minutes, seconds or timezone indicator.
A parsable string, which defines the valid set of values that may be used for the given attribute (identified by the referencedComponentId).
If the attribute in the referencedComponentId is a subtype of 762705008 | Concept model object attribute (attribute)| then the rangeConstraint must be an expression constraint, which can be parsed using the ABNF rules defined by the Expression Constraint Language .
If the attribute in the referencedComponentId is a subtype of 762706009 | Concept model data attribute (attribute)| then the rangeConstraint must be parsable using the concreteValueReplacement ABNF rule specified in the SNOMED CT Template Syntax. For example, the following rangeConstraint includes the set of all positive integers: int (>#0..)
An Expression Constraint that captures the domain, range and cardinality constraints for the given attribute, rule strength and content type.
A subtype of 723573005 | Concept model rule strength| which specifies whether the given rule is mandatory (resulting in an error) or optional (resulting in a warning).
A subtype of 723574004 | Content type| which indicates the type of SNOMED CT content over which this rule applies.
The following metadata hierarchy supports this reference set:
If ranges including concrete values (such as integers or strings) are required, the Expression Constraint Language can be extended, as described for rangeConstraint in the Data Structure section on this page.
Please note that the
hierarchy is designed using 'universal restriction' logic. The hierarchy may therefore appear to be 'upside down'. However, it was designed in this way because if an MRCM rule applies to
All SNOMED CT content|
then it also applies to the Content Types that are a supertype of this - including
All precoordinated SNOMED CT content|
All postcoordinated SNOMED CT content|
Notes on the tables used to show descriptors and examples
The reference set example tables on this page have been revised as follows to aid clarity and understanding:
The table below shows the reference set descriptor for a reference set that follows the 723592007 | MRCM attribute range reference set| pattern.
The table below shows some example rows from a reference set that follows the format of the 723592007 | MRCM attribute range reference set| .