HL7 RDT (Table Row Data) | Integration Soup HL7 Reference Guide

HL7 RDT Table Row Data

Query and response fields from experience.

HL7 field reference RDT fields from HL7 v2.5.1 Show fields

These are the generated fields for the version selected at the top of the page. The document stays the same, but the reference panel follows that version.

Fields

Field	Name	Required	Repeatable	Type	Table
RDT.1	Column Value	Yes	No	var

RDT carries one row of tabular query response data.

The standard describes RDT this way: The RDT segment contains the row data of the tabular data response message (TBR).

Query segments define what the sender is asking for, how the receiver should format the answer, and how a multi-message response is continued or limited.

A query is an interface contract. The tag, parameters, row definitions, sort/filter rules, and continuation pointers must match exactly or the receiver may return technically valid data that is not what the requester expected.

The v2.5.1 structures show RDT in RSP_K11 - RSP - Segment pattern response in response to QBP^Q11, RTB_K13 - RTB - Tabular response in response to QBP^Q13, RTB_Z74 - , and TBR_R08 - Tabular data response. That tells you where it can appear, but the implementation guide still decides which optional fields are meaningful.

For practical interface work, read the generated field panel for datatype, required, repeatable, and table details, then use the notes below to decide what the field should mean in the receiving workflow.

RDT-1 Column Value RequiredR SingleS Typevar

RDT-1 carries a measured, counted, priced, or dosed value. A number without the expected unit, currency, or companion qualifier is much easier to misread than an empty field.

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