HL7 v2 parser Glossary

`ORF_R04` - Response to query; transmission of requested observation

Segment structure for the ORF_R04 message in HL7 v2.5.1. Cardinality is shown as [min..max]; groups are in bold.

MSH Message header [1..1]
SFT Software segment [0..*]
MSA Message acknowledgment [1..1]
QRD Original-style query definition [1..1]
QRF Original style query filter [0..1]
QUERY_RESPONSE Query response [1..*]
- PATIENT Patient [0..1]
  - PID Patient identification [1..1]
  - NTE Notes and comments [0..*]
- ORDER Order [1..*]
  - ORC Common order [0..1]
  - OBR Observation request [1..1]
  - NTE Notes and comments [0..*]
  - TIMING_QTY Timing qty [0..*]
    - TQ1 Timing/quantity [1..1]
    - TQ2 Timing/quantity relationship [0..*]
  - CTD Contact data [0..1]
  - OBSERVATION Observation [1..*]
    - OBX Observation/result [0..1]
    - NTE Notes and comments [0..*]
  - CTI Clinical trial identification [0..*]
ERR Error [0..*]
QAK Query acknowledgment [0..1]
DSC Continuation pointer [0..1]