ADT^A21: Patient goes on a "leave of absence"

Patient goes on a "leave of absence". It's sent as an ADT message (ADT message) with the ADT_A21 message structure.

Message type

ADT · ADT message

Trigger event

A21

Message structure

ADT_A21 · per HL7's current table 0354; older versions sometimes paired events differently

In MSH-9

ADT^A21^ADT_A21

Response

ACK · General acknowledgment message

Other events with the ADT_A21 structure

• ADT^A22 Patient returns from a "leave of absence"
• ADT^A23 Delete a patient record
• ADT^A25 Cancel pending discharge
• ADT^A26 Cancel pending transfer
• ADT^A27 Cancel pending admit
• ADT^A29 Delete person information
• ADT^A32 Cancel patient arriving - tracking
• ADT^A33 Cancel patient departing - tracking

Source: HL7 Terminology (THO) 7.4.0, published by HL7 International under CC0. Check your trading partner's specification for the values they actually send.