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SIU^S12

HL7 v2 scheduling message type, Scheduling domain.

Definition

SIU^S12 is sent by the filler application to notify other systems that a new appointment has just been booked. The SCH (Schedule Activity Information) segment describes the confirmed appointment; it is complemented by detail segments (RGS, AIS, AIL, AIP) specifying resources, locations and personnel.

Origin

Defined in Chapter 10 (Scheduling) of the HL7 Version 2.x Messaging Standard, published by HL7 International.

Example in context

MSH|^~\&|SCHED|HOSP|EHR|HOSP|202606201100||SIU^S12|MSG030|P|2.5.1

  • PID — identifies the appointment's patient.
  • ORC — may reference the order behind the appointment.

Last updated: June 20, 2026