RDF segment
The RDF segment defines the content of the row data segments (RDT) in the tabular response (RTB). • As an optional segment in a query either a QBP or QBS, this segment can be used to limit the number of columns returned and to specify what column positions the fields occupy (where supported, these features can be used to override the defaults for the particular query). If omitted, all fields defined for the query are returned in their default column order.
The shape of one line
required
RDF-2 and its value arrives as RDF-1, so the receiver stores Column Description as Number of Columns per Row.This page carries the RDF field table as published and nothing beyond it. The field notes, vendor behaviour, FHIR mapping and parsing guidance that thePID page has are still to be written for RDF.
Every field
| SEQ | LEN | DT | OPT | RP/# | TBL# | ITEM# | Element name | Cardinality |
|---|---|---|---|---|---|---|---|---|
| RDF-1 | 3 | NM | R | 00701 | Number of Columns per Row | 1..1 | ||
| 40 | RCD | R | Y | 0440 | 00702 | Column Description | 1..* | |
| ||||||||
Related
Message types carrying RDF
RDF appears in 5 message structures, belonging to 3 message types.