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	^ 447562003 |ICD-10 complex map reference set| {{ M mapTarget = "J45" }}

Alternatively, a wildcard search can be performed, to achieve similar results. For example, the expression constraint below will match on rows that have a mapTarget starting with "J45" followed by zero or more other characters (e.g. "J45.0", "J45.1",...,"J45.8", "J45.9")

	^ 447562003 |ICD-10 complex map reference set| {{ M mapTarget = wild:"J45*" }}

To achieve To ensure an exact string match is performed, a wildcard search (without an '*') is requiredcan be used. For example, the expression constraint below will match only match rows that have a mapTarget of "J45.9".

	^ 447562003 |ICD-10 complex map reference set| {{ M mapTarget = wild:"J45.9" }}

For more information on wildcard and word-prefix-any-order searching, please refer to 6.8 Description Filters.

Multiple field constraints can be applied within a reference set member filter. For example, the following expression constraint will return the referencedComponentId from the 

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