HL7® Definition

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QSC: Query Selection Criteria

Definition: This field indicates the conditions that qualify the rows to be returned in the query response. (This field conveys the same information as the WHERE clause in the corresponding SQL expression of the query, but is formatted differently.)

QSC.10STOSegment Field Name
QSC.20IDORelational Operator
QSC.40IDORelational Conjunction

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