Message Conventions
Serial Data Export
3-4 Efficia CM Series Data Export Guide
Delimiter Characters
The following characters are used to construct a message:
Segment Data Fields
Each message segment description contains the following data fields:
Character Meaning
| Field Separator. Separates two adjacent data fields within a segment.
^ Component Separator. Separates adjacent components of data fields where
allowed.
& Subcomponent Separator. Separates adjacent subcomponents of data fields
where allowed.
~ Repetition Separator. Separates multiple occurrences of a field where allowed.
\ Escape Character. Escape character for use with any field.
Data Field Description
Seq Sequence number of the field within the segment. Since an Efficia monitor does
not use all possible fields in the HL7 standard, the sequence numbers are not
always consecutive. This document shows only the fields that are included in
the messages.
Field Descriptive name for the field.
Description Data field description.
DT Data type of the field. Some common data types are:
• ST = String
• NM = Numeric
• TS = Time stamp
• CE = Coded element
Len Maximum length of the field (for primitive types only).
Usage Indicates whether the field is required or conditional in the segment. The
abbreviations are:
• R = Required element
• RE = Required, but can be empty
• C = Conditional, based on predicate evaluation
• CE = Conditional, but can be empty
Min Minimum number of occurrences.
Max Maximum number of occurrences.
Table Number of the HL7 table containing valid values for the field.
Sample Value An example of the data field contents.
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