HL7 v2 parser Glossary

OM3 - Categorical Service/Test/Observation (HL7 v2.6)

Versions: v2.3 v2.3.1 v2.4 v2.5.1 v2.6 v2.7.1

The OM3 segment (Categorical Service/Test/Observation) has 7 fields in HL7 v2.6. Fields are addressed as OM3-n; composite fields break into components OM3-n.m. Paste a message into the parser to see every field annotated with this table.

#NameTypeLenOptRepeatsTable
1Sequence Number - Test/Observation Master FileNM4OptionalNo
2Preferred Coding SystemCWE250OptionalNo
3Valid Coded 'Answers'CWE250OptionalYes
4Normal Text/Codes for Categorical ObservationsCWE250OptionalYes
5Abnormal Text/Codes for Categorical ObservationsCWE250OptionalYes
6Critical Text/Codes for Categorical ObservationsCWE250OptionalYes
7Value TypeID3OptionalNo0125