The HL7 SIU message notifies an auxiliary (or other similarly configured) application of changes to some facet of the filler application’s appointment schedule. There are 14 different trigger events for the SIU message, but they all use a common message format.
The fourteen SIU messages include:
- SIU-S12 – Notification of new appointment booking
- SIU-S13 – Notification of appointment rescheduling
- SIU-S14 – Notification of appointment modification
- SIU-S15 – Notification of appointment cancellation
- SIU-S16 – Notification of appointment discontinuation
- SIU-S17 – Notification of appointment deletion
- SIU-S18 – Notification of addition of service/resource on appointment
- SIU-S19 – Notification of modification of service/resource on appointment
- SIU-S20 – Notification of cancellation of service/resource on appointment
- SIU-S21 – Notification of discontinuation of service/resource on appointment
- SIU-S22 – Notification of deletion of service/resource on appointment
- SIU-S23 – Notification of blocked schedule time slot(s)
- SIU-S24 – Notification of opened (“un-blocked”) schedule time slot(s)
- SIU-S26 – Notification that patient did not show up for scheduled appointment
The segments and groups of segments in the SIU message are as follows, and apply for all trigger events:
| SEGMENT/ GROUP | NAME | OPTIONAL/REPEATABLE? |
|---|---|---|
| MSH | Message header | Required |
| SCH | Schedule activity information | Required |
| NTE | Notes and comments | Optional, Repeatable |
| PatientGroup – Optional and repeatable group | ||
| PID | Patient identification | Required |
| PV1 | Patient visit | Optional |
| PV2 | Patient visit – additional info | Optional |
| OBX | Observation | Optional, Repeatable |
| DG1 | Diagnosis | Optional, Repeatable |
| ResourceGroup – Repeatable group | ||
| RGS | Resource group | Required |
| ServiceGroup – Optional and repeatable group, part of ResourceGroup | ||
| AIS | Appointment information – service | Required |
| NTE-1 | Notes and comments | Optional, Repeatable |
| GeneralGroup – Optional and repeatable group, part of ResourceGroup | ||
| AIG | Appointment information – General resource | Required |
| NTE-2 | Notes and comments | Optional, Repeatable |
| LocationGroup – Optional and repeatable group, part of ResourceGroup | ||
| AIL | Appointment information – Location resource | Required |
| NTE-3 | Notes and comments | Optional, Repeatable |
| PersonnelGroup – Optional and Repeatable, part of ResourceGroup | ||
| AIP | Appointment information – Personnel resource | Required |
| NTE-4 | Notes and comments | Optional, Repeatable |
In HL7 pipe and hat format, the SIU-S14 message would look like this:
MSH|^~&|GPMS|CTX||MED2000|200803060953||SIU^S14|20080306953450|P|2.3||||||||
SCH|00331839401|||||58||HLCK^HEALTHCHECK ANY AGE|20|MIN|^^^200803061000
|||||JOHN||||VALERIE|||||ARRIVED|
PID|1||489671|0|SMITH^MICHAEL^||20080205|F|||176215TH STREET^HOUSTON^TX^77306||(832)795-
8259|||S|||999999999||||||||||||
PV1|1|O|||||HHR^NGUYENSUSAN MD|^||||||||||||||||||||||||||||||||||| ||||||||||
RGS|1|||
AIL|1||HHR^FPCS NGUYEN, MD||||||||||
NTE|1||1MONTH HLCK^^|
AIP|1||PBN^LISAPORTER|50|||||||||
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